System and method for reducing galling damage in solanaceous plants

Abstract

The invention provides an agricultural system for cultivating solanaceous plants, the agricultural system comprising a plant cultivation area lacking solar UV radiation, wherein the system comprises a UV-LED light source. The invention also provides a method for cultivating solanaceous plants in a controlled plant cultivation environment lacking solar UV radiation, the method comprising subjecting the plants to supplemental UV radiation emitted by a UV-LED light source. The invention also provides the use of supplemental UV radiation emitted by a UV-LED light source for reducing the blemish damage of solanaceous plants cultivated in a plant cultivation area lacking solar UV radiation.

Description

Technical Field

[0001] This invention relates to the field of plant cultivation. More specifically, the invention provides an agricultural system for cultivating Solanaceae plants, the system comprising a plant cultivation area lacking solar UV radiation, wherein the system includes a UV-LED light source. The invention also provides a method for cultivating Solanaceae plants in a controlled plant cultivation environment lacking solar UV radiation, the method comprising subjecting the plants to supplemental UV radiation emitted by a UV-LED light source. The invention further provides the use of supplemental UV radiation emitted by a UV-LED light source for reducing swelling damage in Solanaceae plants cultivated in a plant cultivation area lacking solar UV radiation. Background Technology

[0002] Solanaceae plants can develop a type of damage called swelling on their leaves and stems. Swelling damage is characterized by the formation of galls and callus tissue, and in extreme cases, leads to leaf death. Microscopic analysis of leaves of damaged plants shows that swollen spots have defects in the outer waxy layer (called the cuticle), and enlarged individual cells in the epidermis and other tissues that may eventually rupture or collapse (Suzuki et al. (2020) Hort J 89: 597-574). The cuticle is a waterproof layer that prevents water loss from the epidermis and protects against UV radiation and pathogen infection. In swollen spots, this waterproofness is lost, and leaves damaged by swelling have a lower water content than normal leaves (Suzuki et al. (2020) ibid.).

[0003] Conditions of high UV radiation and low relative humidity stimulate cuticle development. In contrast, the cuticle does not develop well under conditions of high humidity and lack of UV, which can also lead to swelling (Kubota et al. (2017) SciHortic 226: 366-371; Suzuki et al. (2020) ibid.). In sensitive tomato varieties such as “Competition,” swelling severely damages plants in the absence of UV light. Indoor cultivation using LED lighting is particularly challenging because there is virtually no UV radiation unless it is provided by an additional UV lamp. Swelling can also occur in glass greenhouses because glass primarily blocks UV light, and in winter, UV radiation from the sun will be limited.

[0004] Previous studies have employed a wide range of UV wavelengths, particularly through the use of gas discharge lamps. Based on the use of such UV-emitting gas discharge lamps, Kubota et al. (2017) proposed the need for light in the UV-B spectrum to suppress swelling. However, the lack of a more precise definition of the wavelength range renders the reported results useless when the goal is to replace UV-emitting gas discharge lamps with LED light sources, which emit UV light in a much narrower wavelength band compared to gas discharge lamps. In particular, LED plant lighting systems typically include monochromatic LEDs, characterized by their very narrow light bandwidth. Furthermore, Kubota et al. (2017) failed to provide whether irradiation with light in the UV-A and / or UV-C spectra is necessary to effectively reduce swelling damage in tomato plants.

[0005] The object of the present invention is to provide improved components and methods to reduce swelling damage in Solanaceae plants, which prevents the plants from being exposed to UV light of ineffective wavelengths or even those associated with negative effects on cultivated Solanaceae plants. Summary of the Invention

[0006] This invention relates to an agricultural system for cultivating Solanaceae plants, the agricultural system comprising a plant cultivation area lacking solar UV radiation, wherein the system includes a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

[0007] Furthermore, the present invention relates to a method for cultivating Solanaceae plants in a controlled plant cultivation environment lacking solar UV radiation, the method comprising subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

[0008] Furthermore, the present invention relates to the use of supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm for reducing swelling damage in Solanaceae plants cultivated in plant cultivation areas lacking solar UV radiation. Attached Figure Description

[0009] Figure 1 Normalized non-UV-LED spectrum

[0010] Figure 2 Normalized spectra of UV LEDs at different wavelengths used in the examples. The <283nm region in the 285nm LED spectrum is mirrored from the >283nm region because it is outside the range of the spectrometer. The measured peak wavelength is 283nm, and it is normal for there to be some deviation from the factory-specified peak wavelength (285nm in this case). It is assumed that the spectrum is symmetrical around the peak wavelength.

[0011] Figure 3 Seedlings 17 days after sowing (das) and 12 days after the start of UV treatment. Treatment code: given in μmol / m 2 UV intensity in units of / s, followed by wavelength.

[0012] Figure 4 : Lower (far axis) side of the leaf 24 days after sowing (das). Treatment code: given in μmol / m 2 UV intensity is expressed in units of / s, followed by wavelength. 285nm UV treatment is missing because it was discontinued after the seedling stage.

[0013] Figure 5 The effect of UV wavelength at final harvest (34 das) on the tomato variety “Competition”. The 285nm UV treatment was absent because it was discontinued after the seedling stage.

[0014] Figure 6 The effect of UV wavelength on the tomato variety "Competition" at final harvest 34 days after sowing. The 285nm UV treatment was absent because it was discontinued after the seedling stage.

[0015] Figure 7 The effect of UV wavelength on the fully elongated leaves at the top of the tomato variety "Competition" at the final harvest 34 days after sowing.

[0016] Figure 8 The effect of UV wavelength on the base of the stem of the tomato variety “Competition” at the final harvest 34 days after sowing.

[0017] Figure 9 The effect of UV wavelength on plant height of the tomato variety "Competition" at final harvest 34 days after sowing. Data are the mean of 18 plants (0.12 308 nm treatment) or 24 plants (control and 0.12 325 nm treatment), with the error bar representing standard deviation. Means with different letters were significantly different (Tukey test, P < 0.05).

[0018] Figure 10 The effect of UV wavelength on the fresh weight of leaves and stems of the tomato variety "Competition" at final harvest 34 days after sowing. Data are the means of 18 plants (0.12 308 nm treatment) or 24 plants (control and 0.12 325 nm treatment), with the error bar representing standard deviation. Means with different letters are significantly different (Tukey test, P < 0.05), lowercase: FW for leaves, uppercase: FW for stems.

[0019] Figure 11The effect of 308nm UV light intensity at final harvest 34 days after sowing on the tomato variety “Competition”.

[0020] Figure 12 The effect of 308nm UV light intensity at final harvest 34 days after sowing on the tomato variety “Competition”.

[0021] Figure 13 The effect of 308nm UV light intensity at final harvest 34 days after sowing on the tomato variety “Competition”.

[0022] Figure 14 The effect of 308nm UV light intensity at final harvest 34 days after sowing on the tomato variety “Competition”.

[0023] Figure 15 The effect of 308 nm UV light intensity at final harvest, 34 days after sowing, on plant height of the tomato variety "Competition". Data are the averages of 16 plants, excluding the control (22 plants). Error bars represent standard deviation. Means with different letters are significantly different (Tukey test, P < 0.05).

[0024] Figure 16 The effect of 308 nm UV light intensity at final harvest, 34 days after sowing, on the fresh weight (FW) of leaves and stems of the tomato variety “Competition”. Data are the mean of 16 plants, excluding the control (22 plants). The error bar is the standard deviation. Means with different letters are significantly different (Tukey test, P<0.05), lowercase: FW for leaves, uppercase: FW for stems.

[0025] Figure 17 The effect of 308nm UV light intensity at final harvest 31 days after sowing on the tomato variety “Competition”.

[0026] Figure 18 The effect of 308nm UV light intensity at final harvest 31 days after sowing on the tomato variety “Competition”.

[0027] Figure 19 The effect of 308nm UV light intensity at final harvest, 31 days after sowing, on the fully elongated leaves at the top of the tomato variety “Competition”.

[0028] Figure 20 The effect of 308nm UV light intensity at final harvest, 31 days after sowing, on the base of the stem of the tomato variety “Competition”.

[0029] Figure 21 The effect of 308 nm UV light intensity at final harvest, 31 days after sowing, on plant height of the tomato variety "Competition". Data are the averages of 15 plants; the error bar represents the standard deviation. Means with different letters are significantly different (Tukey test, P < 0.05).

[0030] Figure 22 The effect of 308 nm UV light intensity at final harvest 31 days after sowing on the fresh weight (FW) of leaves and stems of the tomato variety “Competition”. Data are the mean of 15 plants; the error bar is the standard deviation. Means with different letters are significantly different (Tukey test, P<0.05), lowercase: FW for leaves, uppercase: FW for stems. Detailed Implementation

[0031] General definition

[0032] It should be understood that the present invention is not limited to a particular method or protocol. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention, which is limited only by the appended claims. It must be noted that, unless the context clearly specifies otherwise, the singular forms “a,” “and,” and “described” as used herein and in the appended claims include plural indicators. Thus, for example, reference to “light source” means one or more light sources and includes equivalents known to those skilled in the art, etc. The term “about” is used herein to mean approximately, roughly, about, or within its range. When the term “about” is used in conjunction with a numerical range, it modifies the range by extending the boundaries above and below the stated value. Typically, the term “about” is used herein to modify a numerical value to vary by 20% above and below the stated value, preferably by 10% upward or downward (higher or lower). As used herein, the word “or” means any member of a particular list and also includes any combination of members of that list. When used in this specification and the appended claims, the terms "comprise" and "include" are intended to specify the presence of one or more of the stated features, integers, components, or steps, but do not exclude the presence or addition of one or more other features, integers, components, steps, or groups thereof. For clarity, certain terms used in this specification are defined and used as follows:

[0033] As used herein, the term "agricultural system for cultivating Solanaceae plants" refers to any equipment arrangement suitable for cultivating Solanaceae plants. Therefore, the agricultural system for cultivating Solanaceae plants preferably includes multiple Solanaceae plants, more preferably Solanaceae plants susceptible to swelling damage, at any stage of plant development. The agricultural system according to the invention includes a plant cultivation area, which refers to the portion of the agricultural system that provides all the components (particularly the plant cultivation substrate) necessary for cultivating Solanaceae plants. Therefore, the plant cultivation substrate provides suitable support for the plant roots. Therefore, the term "agricultural system for cultivating Solanaceae plants" according to the invention includes, but is not limited to, tunnels, greenhouses (such as glass greenhouses), climate chambers, and indoor planting systems.

[0034] In the context of this invention, the term "lack of solar UV radiation" means that solar UV radiation in the plant cultivation area causes adverse effects on the cultivated plants, such as swelling damage, compared to plants cultivated under optimal UV radiation conditions. Such lack of solar UV radiation preferably includes insufficient intensity and / or insufficient wavelength composition of UV radiation. Adverse effects caused by a lack of solar UV radiation include, but are not limited to, damage to leaves and / or stems, formation of galls and / or callus tissue, reduced plant growth (expressed as fresh weight), reduced fruit yield, and delayed fruit production.

[0035] In the context of this invention, the term "component suitable for controlling illumination" or "illumination system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more artificial light sources and is capable of emitting light with a spectral composition and intensity suitable for the cultivation of plants (particularly Solanaceae plants). The light emitted by the illumination system according to the invention includes UV-LED light sources and optional artificial non-UV light sources.

[0036] The terms "UV light," "UV radiation," or simply "UV" refer to the range of light at the ultraviolet end of the visible spectrum. Preferably, "UV light" is light with wavelengths in the range of 100 nm to 400 nm. Therefore, the term "peak wavelength in the range" may also include light emitters that emit light outside the indicated wavelength range in addition to peak emission at the indicated wavelength range. Different UV bands are defined as UV-C, UV-B, and UV-A. Preferably, "UV-C" is light with wavelengths in the range of 100 nm to 280 nm. Preferably, "UV-B" is light with wavelengths greater than 280 nm to 315 nm. Preferably, "UV-A" is light with wavelengths greater than 315 nm to 400 nm.

[0037] As used herein, the term “supplementary UV light” or “supplementary UV radiation” refers to any UV light emitted by an artificial UV light source that can supplement solar UV radiation that may already be present in plant cultivation areas (such as in glass greenhouses) or in plant cultivation areas where there is essentially no solar UV radiation (such as in climate chambers or indoor growing systems).

[0038] The term "far-red light" refers to the range of light at the extremely red end of the visible spectrum. Preferably, "far-red light" is light with wavelengths in the range of 700 nm to 800 nm. The term "supplementary far-red light" refers, for example, far-red light applied to plants as a supplement to existing ambient light, such as available sunlight and / or artificial light.

[0039] The term "artificial light source" refers to any artificial light source that emits light. Examples of such artificial light sources include incandescent light sources, gas discharge light sources, and LED light sources. An "incandescent light source" is an electric light source that includes a metal filament to which an electric current is applied, causing the filament to incandle and thus emitting light over a broad wavelength spectrum. Incandescent light sources have several disadvantages and are therefore not commonly used in horticulture. The term "gas discharge light source" refers to an artificial light source that generates light over a relatively broad wavelength spectrum by causing a discharge through an ionized gas. Gas discharge light sources that can be used to illuminate plants in horticulture are well known in the art. The term "LED light source" refers to a light source in which light-emitting diodes are used for illumination. LED light sources, especially monochromatic LED light sources, are characterized by emitting light in a specific wavelength band that is much narrower than the light emitted by other artificial light sources. LED light sources that can be used to illuminate plants in horticulture are well known in the art. Such LED light sources are typically capable of emitting a blue (B), green (G), red (R), and far-red (Fr) light component, with the different light components emitted by multiple narrow-bandwidth LED light sources. The term "narrow bandwidth" in relation to LED light sources has a generally accepted meaning and therefore refers to an LED light source characterized by emitting light within a specific and limited wavelength range. In the context of this invention, the term "narrow bandwidth LED light source" preferably refers to an LED light source with a full width at half maximum (FWHM) emission spectrum of at most 30 nm, more preferably at most 29 nm, 28 nm, 27 nm, 26 nm, 25 nm, 24 nm, 23 nm, 22 nm, 21 nm, 20 nm, 18 nm, 16 nm, 15 nm, 14 nm, 13 nm, 12 nm, or 11 nm, and most preferably at most 10 nm. Determining the FWHM value of an LED light source is well known in the art and represents a wavelength range in which the intensity of light emitted by the LED light source is at least 50% of the intensity at the peak wavelength of the LED light source.

[0040] As used herein, the term "artificial UV light source" refers to an artificial light source capable of emitting UV light as defined herein. As used herein, the term "UV-LED light source" refers to an LED light source capable of emitting UV light as defined herein. Therefore, "narrow bandwidth UV-LED light source" refers to an LED light source capable of emitting UV light within a specific and limited wavelength range. In the context of this invention, the term "narrow bandwidth UV-LED light source" preferably refers to a UV-LED light source with a full width at half maximum (FWHM) emission spectrum of up to 25 nm, more preferably up to 20 nm, 18 nm, 16 nm, 15 nm, 14 nm, 13 nm, 12 nm or 11 nm, and most preferably up to 10 nm.

[0041] The term "non-UV light source" refers to an artificial light source that emits "non-UV light," which, in the context of this invention, means light in the visible spectrum with wavelengths greater than 400 nm. Preferably, the non-UV light source emits light with wavelengths greater than 400 nm and at most 800 nm. As used herein, the terms "supplementary non-UV light" or "supplementary non-UV radiation" refer to any non-UV light emitted by an artificial non-UV light source, either as a supplement to solar non-UV radiation that may already be present in plant cultivation areas (such as in glass greenhouses) or in plant cultivation areas where solar non-UV radiation is substantially absent (such as in climate chambers or indoor growing systems).

[0042] The term "photochromic pigment steady-state (PSS) value" refers to the P value of a photochromic pigment under constant light source illumination. r The ratio of the concentration of the isoform to the total concentration of the two isoforms (Sager et al. (1988) Trans. ASAE31, 1882-1889. doi:10.13031 / 2013.30952). Photopigments exist in two states or as isoforms. In its ground state (labeled P... r Under certain conditions, phytochrome strongly absorbs red light, thus exhibiting turquoise blue in concentrated solutions in vitro. However, when it absorbs red photons, it changes its physical form to form its physiologically active state, P. fr When this is done, its peak spectral absorbance shifts towards far-red light, and the concentrated solution of the phytochrome exhibits a more greenish color. When the phytochrome is at its P... fr In its state, it can absorb far-infrared photons and change them back to its P state. r This bistable behavior makes phytochromes ideal biochemical switches, where P... fr Homotypes serve as signal states for plants.

[0043] As used herein, the term “swelling injury” or “swelling” refers to a physiological disorder characterized by hypertrophy and potential proliferation of plant cells. In susceptible Solanaceae plants, this is typically observed in leaves and stems, and can lead to gall formation and callus formation, and in extreme cases, leaf death. Microscopic analysis of plant leaves reveals defects in the outer waxy layer (called the cuticle) and enlargement of individual cells in the epidermis and other tissues, which may eventually rupture or collapse; see, for example, Suzuki et al. (2020), ibid. The cuticle is a waterproof layer that prevents water loss from the epidermis and protects against UV radiation and pathogen infection. In swollen spots, this waterproofing is lost, and swollen-damaged leaves have a lower water content than normal leaves. The level of susceptibility of a given Solanaceae variety to swelling injury can be readily determined by comparing plants of that variety grown under conditions lacking UV radiation with plants grown under conditions including sufficient UV radiation.

[0044] In the context of this invention, the term "components adapted to control temperature" or "temperature control system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more components capable of and adapted to control the ambient temperature of the cultivation space. The term "ambient temperature of the cultivation space" refers to the temperature of the atmosphere in the plant cultivation space. Optionally, the temperature control system further includes one or more components capable of and adapted to control the root temperature of the plant root system, and / or one or more components capable of and adapted to control the leaf temperature of the leaf system, wherein the root temperature and / or leaf temperature are capable of and adapted to be different from the ambient temperature. In particular, the temperature control system may include heating components and / or cooling components.

[0045] In the context of this invention, the term "component suitable for controlling humidity" or "humidity control system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more components capable of and suitable for controlling the humidity of the atmosphere in the plant cultivation space.

[0046] In the context of this invention, the term "component suitable for controlling carbon dioxide (CO2) content" or "carbon dioxide control system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more components capable of and suitable for controlling the carbon dioxide content of the atmosphere in the plant cultivation space.

[0047] In the context of this invention, the term "components adapted to control shading" or "shading system" refers to a sub-component of an agricultural system adapted to cultivate plants, which includes one or more components capable of and adapted to control the intensity of solar radiation in the plant cultivation space.

[0048] In the context of this invention, the term "components adapted to control ventilation" or "ventilation system" refers to a sub-component of an agricultural system adapted to cultivate plants, which includes one or more components capable of and adapted to control the movement of air in the plant cultivation space.

[0049] In the context of this invention, the term "components adapted to control irrigation" or "irrigation system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more components capable of and adapted to control the distribution of water provided to the cultivated plants. The irrigation system preferably includes a drip irrigation system. In the context of this invention, the term "components adapted to control nutrient distribution" or "nutrient distribution system" refers to a sub-component of an agricultural system suitable for cultivating plants, which includes one or more components capable of and adapted to control the distribution of plant nutrients provided to the cultivated plants.

[0050] "Solanaceae plants" or "plants of the Solanaceae family" refers to plants belonging to the botanical Solanaceae family, that is, any plant in the Solanaceae family, including wild Solanaceae plants and cultivated Solanaceae plants. The botanical Solanaceae family consists of approximately 98 genera, of which the genera *Solanum* and *Capsicum* are the most commercially relevant because they include many domesticated species that are widely cultivated and used as food crops of high economic importance. In the context of this invention, particularly relevant Solanaceae plants are tomato plants, eggplant plants, potato plants, pepper plants, or tobacco plants.

[0051] The genus Solanum comprises approximately 1,330 species, including highly important food crops such as tomato, eggplant, and potato.

[0052] Tomato plants are herbaceous plants of the Solanaceae family that are particularly relevant in the context of this invention. In the context of this invention, the term "tomato plant" refers to the tomato (Solanum lycopersicum) plant and its wild relatives. Tomato plants are perennial in their natural habitat but are cultivated as annuals. Cultivated tomato plants typically grow to 1 to 3 meters (3 to 10 feet) tall. Tomato fruits are botanically berry-like fruits and are considered culinary vegetables. Fruit size varies depending on the cultivar, ranging in width from about 1 cm to 10 cm (about 0.5 inches to 4 inches). Tomatoes are also known as Lycopersicon lycopersicum (L.) H. Karst or Lycopersicon esculentum Mill. The terms "cultivated tomato plant" or "cultivated tomato" refer to tomato plants that are cultivated by humans and possess good agronomic traits, such as varieties, breeding lines, or cultivars of the species S. lycopersicum. Wild relatives of tomato include *S. arcanum*, *S. chmielewskii*, *S. neorickii* (= *L. parviflorum*), *S. cheesmaniae*, *S. galapagense*, *S. pimpinellifolium*, *S. chilense*, *S. corneliomulleri*, *S. habrochaites* (= *L. hirsutum*), *S. huaylasense*, *S. sisymbriifolium*, *S. peruvianum*, *S. hirsutum*, or *S. pennellii*. Tomato plants are diploid with 12 pairs of homologous chromosomes, numbered 1 to 12. Tomato plants may have varying susceptibility to swelling injury. *Solanum habrochaites*, *Solanumpimpinelifolium*, and tomato plants used as rootstocks are particularly susceptible to swelling injury.

[0053] "Eggplant" or "eggplant plant" or "sweet eggplant" is another herbaceous plant of the Solanaceae family that is particularly relevant in the context of this invention. The eggplant has egg-shaped, glossy, deep purple to white fruit with white flesh that has a fleshy texture. The eggplant plant grows to about 40 cm to 150 cm (about 1.3 feet to 5 feet) tall and has large, coarsely lobed leaves that are about 10 cm to 20 cm (about 3 inches to 8 inches) long and about 5 cm to 10 cm (about 2 inches to 4 inches) wide.

[0054] The term “potato” or “potato plant” refers to any tomato plant or its wild relatives, characterized by its starchy tubers that grow underground.

[0055] As used in this article, the term "capsicum plants" refers to domesticated capsicum species, namely C. annuum, C. baccatum, C. chinense, C. frutescens, and C. pubescens. The fruits of capsicum plants, usually named "capsicum" or "capsicum fruit," can vary considerably in color, shape, and size between and within species.

[0056] The pepper (Capsicum annuum L.) plant is a herbaceous plant belonging to the Solanaceae family, which is particularly relevant in the context of this invention. Pepper plants reach approximately 0.5 to 1.5 meters (approximately 20 to 60 inches) in height. Solitary white flowers bear pepper fruits that are green when immature, turning predominantly red, although some varieties may ripen to brown or purple. While these species are tolerant of most climates, they are particularly productive in warm, dry climates. Cultivated plants of the pepper species include different types of peppers, such as bell peppers, sweet peppers, red peppers, and jalapenos. "Pepper chromosome 3" refers to pepper chromosome 3 as known in the art (see pepper cv CM334 genome chromosome (version 1.55) and pepper UCD10X genome chromosome (v1.0) and Capsicum annuum zunla genome chromosome (v2.0)).

[0057] The term "tobacco plant" refers to plants in the genus *Nicotiana* of the family Solanaceae, whose mature leaves are used as a stimulant. More than 70 species of tobacco are known, with *N. tabacum* and *N. rustica* being the main commercially cultivated varieties.

[0058] As used herein, the term "plant" preferably includes the whole plant, including different developmental stages such as seedlings, immature, and mature. When referring to "plant seeds," this either means the seeds from which the plant can grow, or the seeds produced on the plant after fertilization. The meaning used is clearly evident from the context.

[0059] A “plant variety” is a group of plants within the same taxonomic category at the lowest known level, which (whether or not the conditions for determining the rights of plant breeders are met) can be defined based on the expression of traits produced by a particular genotype or combination of genotypes, can be distinguished from any other group of plants by the expression of at least one of these traits, and can be considered an entity because it can reproduce without any variation. Therefore, the term “plant variety” cannot be used to refer to a group of plants, even if they belong to the same class (if they are all characterized by the presence of one or two loci or genes (or phenotypic traits produced by these particular loci or genes), but may differ greatly from each other in terms of other loci or genes).

[0060] The term "cultivated variety" (or "cultivated" plant) is used herein to refer to a plant having a biological state other than "wild," where "wild" means the original, uncultivated, undomesticated, or natural state of the plant or germplasm, while the term "cultivated" does not include such wild or weedy plants. The term "cultivated variety" does indeed include materials with favorable agronomic traits, such as breeding materials, research materials, bred lines, superior bred lines, synthetic populations, hybrids, original species / basic populations, inbred lines, cultivars (open-pollinated hybrid cultivars), segregating populations, mutant / genetic originals, and advanced / improved cultivars. So-called heirloom varieties or cultivars, i.e., open-pollinated varieties or cultivars that typically grew in early human history and are generally adapted to a specific geographic region, are covered herein as cultivated plants in one aspect of the invention. In one embodiment, the term "cultivated variety" also includes local varieties, i.e., plants (or populations) that have been selected and cultivated locally for many years and adapted to a specific geographic environment and share a common gene pool.

[0061] The term "food" is any substance consumed to provide nutritional support to the body. It is typically of plant or animal origin and contains essential nutrients such as carbohydrates, fats, proteins, vitamins, or minerals. This substance is ingested by the organism and assimilated by its cells in an effort to produce energy, sustain life, or stimulate growth. The term food includes substances consumed to provide nutritional support to human and animal bodies.

[0062] The term "seed-producing plant" refers to a plant cultivated specifically for the production of seeds for subsequent sowing. Therefore, the products of seed-producing plants are preferably not used for food.

[0063] “Plant strain” or “breeding strain” refers to a plant and its offspring. As used herein, the term “inbred strain” refers to a plant strain that has undergone repeated self-pollination and is nearly homozygous. Therefore, “inbred strain” or “parental strain” refers to a plant that has undergone several generations (e.g., at least 4, 5, 6, 7 or more generations) of close inbreeding, resulting in a plant strain with a high degree of uniformity.

[0064] "Self-pollination" refers to the process by which pollen is transferred from the anther to the stigma of the same plant.

[0065] "Hybridization" or cross-pollination refers to the mating of two parent plants, such as pollinating the maternal plant with pollen from the paternal line.

[0066] "F1, F2, F3, etc." refers to the consecutive generations following a cross between two parent plants or parent strains. Plants grown from seeds produced by crossing two plants or strains are called the F1 generation. F1 plants self-pollinate to produce the F2 generation, and so on.

[0067] In this article, "female plant" should be understood as a plant pollinated by its male parent.

[0068] In this article, "male plant" should be understood as a plant whose pollen is used to pollinate female plants.

[0069] "F1 hybrid" plants (or "F1 hybrid seeds") are the generation obtained by crossing two inbred parent lines. Therefore, F1 hybrid seeds are the seeds from which F1 hybrid plants grow. Due to heterosis, F1 hybrids are more vigorous and have higher yields. Inbred lines are essentially homozygous at most loci in their genome.

[0070] Pollination is the process by which pollen is transferred to the stigma of a flower, enabling fertilization and reproduction.

[0071] In this article, "emasculation" is understood as the removal of anthers to prevent self-pollination.

[0072] "Sowing" refers to the process of placing seeds in a suitable culture medium to germinate them and enable them to grow into plants. Culture media can include, for example, soil, various types of rock wool, (liquid) culture media, etc.

[0073] The term "fruit" refers to the seed-bearing structure in flowering plants.

[0074] In this article, “harvest” is understood as the collection of fruits and / or seeds that develop within the fruits.

[0075] In this article, "average" refers to the arithmetic mean.

[0076] It should be understood that comparisons between different cultivation conditions involve multiple plants of a line (or variety) cultivated under relevant test and control conditions (e.g., at least 5 plants per line, preferably at least 10 plants).

[0077] The differences between plants under relevant cultivation conditions are identified, with statistically significant differences being preferred. Preferably, the plants belong to the same strain or variety.

[0078] Agricultural systems for cultivating Solanaceae plants

[0079] The present invention provides an agricultural system for cultivating Solanaceae plants, the agricultural system comprising a plant cultivation area lacking solar UV radiation, wherein the system comprises a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

[0080] The inventors have discovered that when cultivating Solanaceae plants (including tomato varieties particularly sensitive to swelling damage), supplemental UV irradiation provided by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm is sufficient to reduce or even prevent swelling damage. Surprisingly, supplemental UV light with wavelengths outside the 300 nm to 322 nm range not only proved ineffective in preventing swelling damage but may even have a negative impact on plant health. This is surprising because UV-A and UV-C are conventionally considered necessary to prevent swelling damage in tomato plants grown under UV-deficient conditions. Currently, UV-LEDs are not available for commercial glass greenhouse applications.

[0081] This invention defines the UV wavelength significantly more precisely than previous studies. An earlier study concluded that UV-B (280 nm to 315 nm) was required to suppress swelling (Kubota et al. (2017), ibid.), but the UV light source used in this study has a wide range of approximately 300 nm to 400 nm and a peak wavelength of around 345 nm. Within this range, we have shown that a peak wavelength of 285 nm (still within the UV-B range) is highly detrimental to tomato plants, while peak wavelengths of 322 nm or higher are insufficiently effective in suppressing swelling. These findings also challenge previously reported effective strengths or daily doses, as only a small fraction of wavelengths effectively contribute to suppressing swelling.

[0082] Therefore, the agricultural system according to the invention is suitable for the cultivation of Solanaceae plants. Preferably, the Solanaceae plants cultivated in the agricultural system according to the invention are potato plants, tobacco plants, pepper plants, eggplant plants, or tomato plants. Most preferably, the Solanaceae plants cultivated in the agricultural system according to the invention are tomato plants.

[0083] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention includes plant cultivation areas lacking solar UV radiation. Typical float glass used in glass greenhouses transmits very little light with wavelengths shorter than 400 nm (i.e., in the UV range), and its transmittance is close to zero around 310 nm (almost exactly the wavelength at which swelling is most effective). Therefore, for natural sunlight to suppress swelling in glass greenhouses, the intensity needs to be very high to achieve sufficient UV-B intensity within the desired wavelength bandwidth. This means that supplemental UV-B light is essential for cultivating sensitive varieties without severe swelling damage in glass greenhouses under low light conditions during winter, as well as in indoor systems.

[0084] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention includes a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm. Preferably, the agricultural system for cultivating Solanaceae plants according to the present invention includes peak wavelengths in the ranges of 300 nm to 320 nm, 300 nm to 318 nm, 300 nm to 316 nm, 300 nm to 315 nm, 300 nm to 314 nm, 300 nm to 313 nm, 300 nm to 312 nm, 300 nm to 311 nm, 300 nm to 310 nm, 301 nm to 322 nm, 301 nm to 320 nm, 301 nm to 318 nm, 301 nm to 316 nm, 301 nm to 315 nm, 301 nm to 314 nm, and 301 nm to 322 nm. 13nm, 301nm to 312nm, 301nm to 311nm, 301nm to 310nm, 302nm to 322nm, 302nm to 320nm, 302nm to 318nm, 302nm to 316nm, 302nm to 315nm, 302nm to 314nm, 302nm to 313nm, 302nm to 312nm, 302nm to 311nm, 302nm to 310nm, 303nm to 322nm, 303nm to 320nm, 303nm to 318nm, 303nm to 316nm, 303nm to 315nm nm, 303nm to 314nm, 303nm to 313nm, 303nm to 312nm, 303nm to 311nm, 303nm to 310nm, 304nm to 322nm, 304nm to 320nm, 304nm to 318nm, 304nm to 316nm, 304nm to 315nm, 304nm to 314nm, 304nm to 313nm, 304nm to 312nm, 304nm to 311nm, 304nm to 310nm, 305nm to 322nm, 305nm to 320nm, 305nm to 318nm UV-LED light sources in the range of 305nm to 316nm, 305nm to 315nm, 305nm to 314nm, 305nm to 313nm, 305nm to 312nm, 305nm to 311nm, 305nm to 310nm, 306nm to 322nm, 306nm to 320nm, 306nm to 318nm, 306nm to 316nm, 306nm to 315nm, 306nm to 314nm, 306nm to 313nm, 306nm to 312nm, 306nm to 311nm, or 306nm to 310nm. More preferably, therefore, the agricultural system for cultivating Solanaceae plants according to the present invention includes a UV-LED light source with a peak wavelength in the range of 305nm to 315nm.

[0085] Preferably, the agricultural system for cultivating Solanaceae plants according to the present invention does not include a gas discharge UV light source. More preferably, the agricultural system for cultivating Solanaceae plants according to the present invention does not include any supplementary UV light source other than the UV-LED light source according to the present invention.

[0086] The application of supplemental UV radiation in the work environment also carries risks, as UV light can damage the eyes and skin, and direct exposure should be avoided. This means that, preferably, supplemental UV radiation should not be applied when humans are present in the plant growing area. Preferably, the agricultural system for cultivating Solanaceae plants according to the invention includes components for reducing or preventing supplemental UV light exposure to humans present in the plant growing area. Such components may include those that allow the UV-LED light source to be switched off when humans are present in the plant growing area, for example, by using an automated system, such as a clock switch or motion detector switch.

[0087] In one aspect, the UV-LED light source included in the system according to the invention is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of up to 30 nm. Preferably, the UV-LED light source included in the system according to the invention is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of up to 29 nm, 28 nm, 27 nm, 26 nm, 25 nm, 24 nm, 23 nm, 22 nm, 21 nm, 20 nm, 19 nm, 18 nm, 17 nm, 16 nm, 15 nm, 14 nm, 13 nm, 12 nm, 11 nm, or 10 nm.

[0088] Preferably, the agricultural system for cultivating Solanaceae plants according to the present invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300nm to 322nm (i.e., peak wavelength of 300nm to 322nm) and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 320nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 318nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 316nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 315nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 314 ...5nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 314nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to 314nm and FWHM emission spectrum of up to 30nm; peak wavelength in the range of 300nm to The WHM emission spectrum is at most 30 nm with a peak wavelength of 300 nm to 313 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 300 nm to 312 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 300 nm to 311 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 300 nm to 310 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 301 nm to 322 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 301 nm to 320 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 301 nm to 318 nm, and the FWHM emission spectrum is at most 30 nm with a peak wavelength of 301 nm to 318 nm. The peak wavelengths are 301 nm to 316 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 315 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 314 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 313 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 312 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 311 nm and the FWHM emission spectrum is at most 30 nm; the peak wavelengths are 301 nm to 310 nm and the FWHM emission spectrum is at most 30 nm; and the peak wavelengths are 302 nm to 322 nm and... The FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 320 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 318 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 316 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 315 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 314 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 313 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 302 nm to 312 nm; and the FWHM emission spectrum is at most 30 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 30nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 30 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 305 nm to 322 nm. Furthermore, the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 30 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 30 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 30 nm.

[0089] More preferably, the agricultural system for cultivating Solanaceae plants according to the present invention includes a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of up to 27 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of up to 27 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of up to 27 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of up to 27 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of up to 27 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 27 nm. The following are examples of emission spectra with peak wavelengths of 300nm to 313nm and FWHM emission spectra up to 27nm: peak wavelengths of 300nm to 312nm and FWHM emission spectra up to 27nm; peak wavelengths of 300nm to 311nm and FWHM emission spectra up to 27nm; peak wavelengths of 300nm to 310nm and FWHM emission spectra up to 27nm; peak wavelengths of 301nm to 322nm and FWHM emission spectra up to 27nm; peak wavelengths of 301nm to 320nm and FWHM emission spectra up to 27nm; peak wavelengths of 301nm to 318nm and FWHM emission spectra up to 27nm; peak wavelengths of 301nm and 322nm. Up to 316nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 315nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 314nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 313nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 312nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 311nm and FWHM emission spectrum up to 27nm, peak wavelength from 301nm to 310nm and FWHM emission spectrum up to 27nm, peak wavelength from 302nm to 322nm and FWHM The emission spectrum is at most 27 nm, with a peak wavelength of 302 nm to 320 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 318 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 316 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 315 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 314 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 313 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 27 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 27 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 27 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 27 nm.

[0090] Even more preferably, the agricultural system for cultivating Solanaceae plants according to the present invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of up to 25 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of up to 25 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of up to 25 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of up to 25 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of up to 25 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 25 nm. nm, peak wavelength 300nm to 313nm and FWHM emission spectrum up to 25nm, peak wavelength 300nm to 312nm and FWHM emission spectrum up to 25nm, peak wavelength 300nm to 311nm and FWHM emission spectrum up to 25nm, peak wavelength 300nm to 310nm and FWHM emission spectrum up to 25nm, peak wavelength 301nm to 322nm and FWHM emission spectrum up to 25nm, peak wavelength 301nm to 320nm and FWHM emission spectrum up to 25nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 25nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 25nm, peak wavelength 301nm to 313nm and peak wavelength 301nm to 313nm. The peak wavelength is 301nm to 316nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 315nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 314nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 313nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 312nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 311nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 301nm to 310nm and the FWHM emission spectrum is at most 25nm; the peak wavelength is 302nm to 322nm and the FWHM emission spectrum is at most 25nm. The emission spectrum is at most 25 nm, with a peak wavelength of 302 nm to 320 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 318 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 316 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 315 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 314 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 313 nm, and the emission spectrum of FWHM is at most 25 nm, with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 25nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 25 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 25 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 25 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 25 nm.

[0091] Particularly preferably, the agricultural system for cultivating Solanaceae plants according to the present invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 22 nm. m, peak wavelength 300nm to 313nm and FWHM emission spectrum up to 22nm, peak wavelength 300nm to 312nm and FWHM emission spectrum up to 22nm, peak wavelength 300nm to 311nm and FWHM emission spectrum up to 22nm, peak wavelength 300nm to 310nm and FWHM emission spectrum up to 22nm, peak wavelength 301nm to 322nm and FWHM emission spectrum up to 22nm, peak wavelength 301nm to 320nm and FWHM emission spectrum up to 22nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 22nm, peak wavelength 301nm Up to 316nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 315nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 314nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 313nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 312nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 311nm and FWHM emission spectrum up to 22nm, peak wavelength from 301nm to 310nm and FWHM emission spectrum up to 22nm, peak wavelength from 302nm to 322nm and FWHM The emission spectrum is at most 22 nm, with a peak wavelength of 302 nm to 320 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 318 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 316 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 315 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 314 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 313 nm, and the emission spectrum of FWHM is at most 22 nm, with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 22 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 22 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 22 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 22 nm.

[0092] More particularly preferably, the agricultural system for cultivating Solanaceae plants according to the present invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 21 nm. nm, peak wavelength 300nm to 313nm and FWHM emission spectrum up to 21nm, peak wavelength 300nm to 312nm and FWHM emission spectrum up to 21nm, peak wavelength 300nm to 311nm and FWHM emission spectrum up to 21nm, peak wavelength 300nm to 310nm and FWHM emission spectrum up to 21nm, peak wavelength 301nm to 322nm and FWHM emission spectrum up to 21nm, peak wavelength 301nm to 320nm and FWHM emission spectrum up to 21nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 21nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 21nm, peak wavelength 301nm to 313nm and peak wavelength 301nm to 318nm. The peak wavelengths are 301nm to 316nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 315nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 314nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 313nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 312nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 311nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 301nm to 310nm and the FWHM emission spectrum is at most 21nm; the peak wavelengths are 302nm to 322nm and the FWHM emission spectrum is at most 21nm. The emission spectrum is at most 21 nm, with a peak wavelength of 302 nm to 320 nm, and the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 302 nm to 318 nm, with a peak wavelength of 302 nm to 316 nm, with a peak wavelength of 302 nm to 315 nm, with a peak wavelength of 302 nm to 314 nm, with a peak wavelength of 302 nm to 313 nm, with a peak wavelength of 302 nm to 312 nm, and the emission spectrum of FWHM is at most 21 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 21 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 305 nm to 322 nm. Furthermore, the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 21 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 21 nm, Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 21 nm.

[0093] Even more particularly preferably, the agricultural system for cultivating Solanaceae plants according to the invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 20 nm. nm, peak wavelength 300nm to 313nm and FWHM emission spectrum up to 20nm, peak wavelength 300nm to 312nm and FWHM emission spectrum up to 20nm, peak wavelength 300nm to 311nm and FWHM emission spectrum up to 20nm, peak wavelength 300nm to 310nm and FWHM emission spectrum up to 20nm, peak wavelength 301nm to 322nm and FWHM emission spectrum up to 20nm, peak wavelength 301nm to 320nm and FWHM emission spectrum up to 20nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 20nm, peak wavelength 301nm to 318nm and FWHM emission spectrum up to 20nm, peak wavelength 301nm to 313nm and peak wavelength 301nm to 318nm The peak wavelengths are 301nm to 316nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 315nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 314nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 313nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 312nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 311nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 301nm to 310nm and the FWHM emission spectrum is at most 20nm; the peak wavelengths are 302nm to 322nm and the FWHM emission spectrum is at most 20nm. The emission spectrum is at most 20 nm, with a peak wavelength of 302 nm to 320 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 302 nm to 318 nm, with a peak wavelength of 302 nm to 316 nm, with a peak wavelength of 302 nm to 315 nm, with a peak wavelength of 302 nm to 314 nm, with a peak wavelength of 302 nm to 313 nm, with a peak wavelength of 302 nm to 312 nm, and the emission spectrum of FWHM is at most 20 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 20nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 20 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 20 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 20 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 20 nm.

[0094] Most preferably, the agricultural system for cultivating Solanaceae plants according to the present invention comprises a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of up to 18 nm; peak wavelength in the range of 300 nm to 314 nm. The peak wavelengths are 300nm to 313nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 300nm to 312nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 300nm to 311nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 300nm to 310nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 322nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 320nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 318nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 316nm and the FWHM emission spectrum is at most... 18nm, peak wavelength 301nm to 315nm and FWHM emission spectrum up to 18nm, peak wavelength 301nm to 314nm and FWHM emission spectrum up to 18nm, peak wavelength 301nm to 313nm and FWHM emission spectrum up to 18nm, peak wavelength 301nm to 312nm and FWHM emission spectrum up to 18nm, peak wavelength 301nm to 311nm and FWHM emission spectrum up to 18nm, peak wavelength 301nm to 310nm and FWHM emission spectrum up to 18nm, peak wavelength 302nm to 322nm and FWHM emission spectrum up to 18nm, peak wavelength 302nm to 320nm The emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 318 nm; the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 316 nm; the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 315 nm; the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 314 nm; the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 313 nm; the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 312 nm; and the emission spectrum of FWHM is at most 18 nm, with a peak wavelength of 302 nm to 311 nm.Peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 314 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 303 nm to 313 nm. The FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 318 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 316 nm; and the FWHM emission spectrum is at most 18 nm. Peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 305 nm to 322 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 305 nm to 320 nm. The FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 312 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 311 nm; and the FWHM emission spectrum is at most 18 nm.Peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 315 nm. Furthermore, the FWHM emission spectrum is at most 18 nm with a peak wavelength of 306 nm to 314 nm, and the FWHM emission spectrum is at most 18 nm with a peak wavelength of 306 nm to 313 nm, and the FWHM emission spectrum is at most 18 nm with a peak wavelength of 306 nm to 312 nm, and the FWHM emission spectrum is at most 18 nm with a peak wavelength of 306 nm to 311 nm, and the FWHM emission spectrum is at most 18 nm, or the FWHM emission spectrum is at most 18 nm with a peak wavelength of 306 nm to 310 nm.

[0095] The UV-LED light source according to the invention is capable of emitting an effective amount of UV radiation during the period in which plants in a plant cultivation area are subjected to supplemental UV radiation (also referred to herein as the "UV photocycle"). The effective amount of UV radiation is characterized in that the UV-LED light source can achieve a UV light intensity at plant height sufficient to compensate for the lack of solar UV radiation, and in particular sufficient to reduce or even completely eliminate the adverse effects of the lack of solar UV radiation. In one aspect, the UV-LED light source included in the system according to the invention is capable of emitting an intensity of 0.1 μmol / m at plant height. 2 / s to 2μmol / m 2 / s of UV radiation. In the context of this invention, it was surprisingly found that when the intensity of 308nm UV light decreased from 0.12μmol / m 2 / s doubled to 0.24 μmol / m 2 / s or even 0.36μmol / m 2 At / s, swelling damage in Solanaceae plants can be further improved.

[0096] Preferably, the UV-LED light source included in the system according to the present invention is capable of emitting an intensity of 0.1 μmol / m at the height of the plant. 2 / s to 2μmol / m 2 / s, 0.2μmol / m 2 / s to 2μmol / m 2 / s, 0.3μmol / m 2 / s to 2μmol / m 2 / s, 0.1μmol / m 2 / s to 1.5μmol / m 2 / s, 0.2μmol / m 2 / s to 1.5μmol / m 2 / s, 0.3μmol / m 2 / s to 1.5μmol / m 2 / s, 0.1μmol / m 2 / s to 1μmol / m 2 / s, 0.2μmol / m 2 / s to 1μmol / m 2 / s or 0.3μmol / m 2 / s to 1μmol / m 2 UV radiation per second.

[0097] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention includes a UV-LED light source having the following parameters: a peak wavelength in the range of 300 nm to 322 nm (i.e., a peak wavelength of 300 nm to 322 nm), an FWHM emission spectrum of up to 30 nm (i.e., an FWHM spectrum of up to 30 nm), and the ability to emit an intensity of 0.1 μmol / m at plant height (i.e., an intensity of 0.1 μmol / m). 2 / s to 2μmol / m 2 UV radiation per second. Preferably, the agricultural system for cultivating Solanaceae plants according to the invention comprises a UV-LED light source having the following parameters: a peak wavelength of 300 nm to 322 nm, an FWHM spectrum of up to 30 nm, and an intensity of 0.1 μmol / m². 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; or a peak wavelength of 305nm to 315nm, an FWHM spectrum of up to 20nm, and an intensity of 0.3μmol / m 2 / s to 1μmol / m 2 / s.

[0098] An agricultural system for cultivating Solanaceae plants according to the invention includes a component that allows for the illumination of plants within a cultivation area with an effective amount of non-UV light. The non-UV light may originate from the sun (e.g., in a greenhouse) and / or from an artificial light source. The effective amount of non-UV light is characterized in that the intensity and spectral composition of the non-UV light within the cultivation area are suitable for Solanaceae plant cultivation. Therefore, the agricultural system for cultivating Solanaceae plants according to the invention includes a sub-component that allows for the illumination of cultivated Solanaceae plants with non-UV light of a spectral composition and intensity suitable for Solanaceae plant cultivation. Such non-UV light with a spectral composition and intensity suitable for Solanaceae plant cultivation is known in the art.

[0099] In one aspect, the system according to the invention also includes an artificial non-UV light source. Preferably, the artificial non-UV light source is a "non-UV-LED light source." In horticultural lighting, non-UV LED-based light sources have several advantages, including high energy efficiency and relatively low cost.

[0100] In one aspect, the non-UV light source included in the system of the present invention is capable of emitting an intensity of 5 μmol / m at plant height. 2 / s to 1000 μmol / m 2 / s of non-UV light. Preferably, the non-UV light source included in the system of the present invention is capable of emitting an intensity of 5 μmol / m at the plant height. 2 / s to 1000 μmol / m 2 / s, 10μmol / m 2 / s to 1000 μmol / m 2 / s, 15μmol / m 2 / s to 1000 μmol / m 2 / s, 20μmol / m 2 / s to 1000 μmol / m 2 / s, 25μmol / m 2 / s to 1000 μmol / m 2 / s, 30μmol / m 2 / s to 1000 μmol / m 2 / s, 35μmol / m 2 / s to 1000 μmol / m 2 / s, 40μmol / m 2 / s to 1000 μmol / m 2 / s, 50μmol / m 2 / s to 1000 μmol / m 2 / s, 60μmol / m 2 / s to 1000 μmol / m 2 / s, 70μmol / m 2 / s to 1000 μmol / m 2 / s, 80μmol / m 2 / s to 1000 μmol / m 2 / s, 90μmol / m 2 / s to 1000 μmol / m 2 / s, 100μmol / m 2 / s to 1000 μmol / m 2 / s, 5μmol / m 2 / s to 500μmol / m 2 / s, 10μmol / m2 / s to 500μmol / m 2 / s, 15μmol / m 2 / s to 500μmol / m 2 / s, 20μmol / m 2 / s to 500μmol / m 2 / s, 25μmol / m 2 / s to 500μmol / m 2 / s, 30μmol / m 2 / s to 500μmol / m 2 / s, 35μmol / m 2 / s to 500μmol / m 2 / s, 40μmol / m 2 / s to 500μmol / m 2 / s, 50μmol / m 2 / s to 500μmol / m 2 / s, 60μmol / m 2 / s to 500μmol / m 2 / s, 70μmol / m 2 / s to 500μmol / m 2 / s, 80μmol / m 2 / s to 500μmol / m 2 / s, 90μmol / m 2 / s to 500μmol / m 2 / s, 100μmol / m 2 / s to 500μmol / m 2 / s, 5μmol / m 2 / s to 250μmol / m 2 / s, 10μmol / m 2 / s to 250μmol / m 2 / s, 15μmol / m 2 / s to 250μmol / m 2 / s, 20μmol / m 2 / s to 250μmol / m 2 / s, 25μmol / m 2 / s to 250μmol / m 2 / s, 30μmol / m 2 / s to 250μmol / m 2 / s, 35μmol / m 2 / s to 250μmol / m 2 / s, 40μmol / m 2 / s to 250μmol / m 2 / s, 50μmol / m 2 / s to 250μmol / m 2 / s, 60μmol / m 2 / s to 250μmol / m 2 / s, 70μmol / m 2 / s to 250μmol / m 2 / s, 80μmol / m 2 / s to 250μmol / m 2 / s, 90μmol / m 2 / s to 250μmol / m 2 / s, 100μmol / m 2 / s to 250μmol / m 2 / s, 5μmol / m 2 / s to 200μmol / m 2 / s, 10μmol / m 2 / s to 200μmol / m 2 / s, 15μmol / m 2 / s to 200μmol / m 2 / s, 20μmol / m 2 / s to 200μmol / m 2 / s, 25μmol / m 2 / s to 200μmol / m 2 / s, 30μmol / m 2 / s to 200μmol / m 2 / s, 35μmol / m 2 / s to 200μmol / m 2 / s, 40μmol / m 2 / s to 200μmol / m 2 / s, 50μmol / m 2 / s to 200μmol / m 2 / s, 60μmol / m 2 / s to 200μmol / m 2 / s, 70μmol / m 2 / s to 200μmol / m 2 / s, 80μmol / m 2 / s to 200μmol / m 2 / s, 90μmol / m 2 / s to 200μmol / m 2 / s, 100μmol / m 2 / s to 200μmol / m2 / s、5μmol / m 2 / s to 180μmol / m 2 / s、10μmol / m 2 / s to 180μmol / m 2 / s、15μmol / m 2 / s to 180μmol / m 2 / s、20μmol / m 2 / s to 180μmol / m 2 / s、25μmol / m 2 / s to 180μmol / m 2 / s、30μmol / m 2 / s to 180μmol / m 2 / s、35μmol / m 2 / s to 180μmol / m 2 / s、40μmol / m 2 / s to 180μmol / m 2 / s、50μmol / m 2 / s to 180μmol / m 2 / s、60μmol / m 2 / s to 180μmol / m 2 / s、70μmol / m 2 / s to 180μmol / m 2 / s、80μmol / m 2 / s to 180μmol / m 2 / s、90μmol / m 2 / s to 180μmol / m 2 / s、100μmol / m 2 / s to 180μmol / m 2 / s、5μmol / m 2 / s to 170μmol / m 2 / s、10μmol / m 2 / s to 170μmol / m 2 / s、15μmol / m 2 / s to 170μmol / m 2 / s、20μmol / m 2 / s to 170μmol / m 2 / s、25μmol / m 2 / s to 170μmol / m 2 / s、30μmol / m 2 / s to 170μmol / m 2 / s、35μmol / m2 / s to 170μmol / m 2 / s, 40μmol / m 2 / s to 170μmol / m 2 / s, 50μmol / m 2 / s to 170μmol / m 2 / s, 60μmol / m 2 / s to 170μmol / m 2 / s, 70μmol / m 2 / s to 170μmol / m 2 / s, 80μmol / m 2 / s to 170μmol / m 2 / s, 90μmol / m 2 / s to 170μmol / m 2 / s, 100μmol / m 2 / s to 170μmol / m 2 / s, 5μmol / m 2 / s to 160μmol / m 2 / s, 10μmol / m 2 / s to 160μmol / m 2 / s, 15μmol / m 2 / s to 160μmol / m 2 / s, 20μmol / m 2 / s to 160μmol / m 2 / s, 25μmol / m 2 / s to 160μmol / m 2 / s, 30μmol / m 2 / s to 160μmol / m 2 / s, 35μmol / m 2 / s to 160μmol / m 2 / s, 40μmol / m 2 / s to 160μmol / m 2 / s, 50μmol / m 2 / s to 160μmol / m 2 / s, 60μmol / m 2 / s to 160μmol / m 2 / s, 70μmol / m 2 / s to 160μmol / m 2 / s, 80μmol / m 2 / s to 160μmol / m 2 / s, 90μmol / m 2 / s to 160μmol / m 2 / s, 100μmol / m 2 / s to 160μmol / m 2 / s, 5μmol / m 2 / s to 150μmol / m 2 / s, 10μmol / m 2 / s to 150μmol / m 2 / s, 15μmol / m 2 / s to 150μmol / m 2 / s, 20μmol / m 2 / s to 150μmol / m 2 / s, 25μmol / m 2 / s to 150μmol / m 2 / s, 30μmol / m 2 / s to 150μmol / m 2 / s, 35μmol / m 2 / s to 150μmol / m 2 / s, 40μmol / m 2 / s to 150μmol / m 2 / s, 50μmol / m 2 / s to 150μmol / m 2 / s, 60μmol / m 2 / s to 150μmol / m 2 / s, 70μmol / m 2 / s to 150μmol / m 2 / s, 80μmol / m 2 / s to 150μmol / m 2 / s, 90μmol / m 2 / s to 150μmol / m 2 / s or 100μmol / m 2 / s to 150μmol / m 2 / s of non-UV light.

[0101] In one aspect, the non-UV light source included in the system of the present invention is capable of emitting non-UV light comprising the following components: a blue light component (B) with a peak wavelength greater than 400 nm to at most 495 nm (preferably 435 nm to 485 nm), a green light component (G) with a peak wavelength greater than 495 nm to at most 590 nm (preferably 500 nm to 550 nm), a red light component (R) with a peak wavelength greater than 590 nm to at most 700 nm (preferably 600 nm to 650 nm), and a far-red light component (Fr) with a peak wavelength greater than 700 nm to at most 800 nm. The spectral composition of non-UV light sources suitable for cultivating Solanaceae plants is known in the art. Therefore, in the context of this invention, the spectral composition of a useful non-UV light source comprises 0% to 40% B, 0% to 40% G, 50% to 100% R and 0% to 40% Fr, preferably 10% to 20% B, 2% to 10% G, 70% to 90% R and 15% to 15% Fr, more preferably 12% to 16% B, 3% to 7% G, 75% to 85% R and 11% to 15% Fr.

[0102] In one aspect, the spectral composition of the light source included in the system of the present invention (i.e., the spectral composition of all light sources irradiating the cultivated Solanaceae plants in the plant cultivation area) produces a photosensitive pigment steady-state (PSS) value that is particularly useful in Solanaceae plant cultivation. Such PSS values ​​useful in Solanaceae plant cultivation are known in the art. In one aspect, the spectrum of the light source included in the system of the present invention produces a photosensitive pigment steady-state (PSS) value of 0.70 to 0.90, preferably 0.82 to 0.90, more preferably 0.82 to 0.88, and most preferably 0.83 to 0.87.

[0103] The agricultural system for cultivating Solanaceae plants according to the present invention includes components necessary for cultivating Solanaceae plants. Such components are known in the art as they provide suitable cultivation conditions for Solanaceae plants. Therefore, the components for cultivating Solanaceae plants included in the agricultural system for cultivating Solanaceae plants according to the present invention may include, but are not limited to, one or more of the following: components for controlling temperature, components for controlling humidity, components for controlling carbon dioxide (CO2), components for controlling shading, components for controlling ventilation, components for controlling irrigation, and components for distributing nutrients to the cultivated Solanaceae plants. In one aspect, the system according to the present invention further includes one or more components suitable for controlling temperature, humidity, carbon dioxide (CO2) content, shading, ventilation, irrigation, and nutrient distribution.

[0104] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention may include sub-components adapted to control the temperature in the plant cultivation area to a temperature range particularly suitable for cultivating Solanaceae plants. Temperature ranges suitable for cultivating Solanaceae plants are well known in the art. In one aspect, the temperature range suitable for cultivating Solanaceae plants includes temperatures in the range of 14°C to 30°C, preferably in the range of 16°C to 28°C, more preferably in the range of 18°C ​​to 27°C, even more preferably in the range of 20°C to 26°C, or most preferably in the range of 22°C to 25°C. Preferably, the nighttime temperature in the plant cultivation space is lower than the daytime temperature in the plant cultivation space.

[0105] Therefore, the agricultural system for cultivating Solanaceae plants according to the invention may include sub-components adapted to control the relative humidity of the atmosphere in the plant cultivation area to a range particularly suitable for cultivating Solanaceae plants. The range of relative humidity suitable for cultivating Solanaceae plants is well known in the art. In one aspect, the range of relative humidity suitable for cultivating Solanaceae plants includes an atmospheric relative humidity in the range of 40% to 95%, preferably in the range of 50% to 85%, or more preferably in the range of 60% to 80%. Preferably, the nighttime relative humidity of the atmosphere in the plant cultivation space is higher than the daytime relative humidity of the atmosphere in the plant cultivation space.

[0106] Therefore, the agricultural system for cultivating Solanaceae plants according to the invention may include sub-components adapted to control the average CO2 content of the atmosphere in the plant cultivation area to a CO2 content particularly suitable for cultivating Solanaceae plants. A CO2 content particularly suitable for cultivating Solanaceae plants is well known in the art. In one aspect, a CO2 content particularly suitable for cultivating Solanaceae plants includes a CO2 content in the range of 300 ppm to 2000 ppm, preferably in the range of 300 ppm to 1200 ppm, more preferably in the range of 400 ppm to 1100 ppm, even more preferably in the range of 500 ppm to 1000 ppm, or most preferably in the range of 600 ppm to 800 ppm. Preferably, the nighttime CO2 content of the atmosphere in the plant cultivation area is lower than the daytime CO2 content of the atmosphere in the plant cultivation area.

[0107] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention may include sub-components adapted to control shading in the plant cultivation area. Components adapted to control shading in the plant cultivation area are known in the art and include, but are not limited to, nets and roller blinds.

[0108] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention may include sub-components adapted to control ventilation in the plant cultivation area. Components adapted to control ventilation in the plant cultivation area are known in the art, including but not limited to vents and ventilators.

[0109] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention may include sub-components adapted to control the irrigation provided to the plants to maintain plant cultivation conditions particularly suitable for cultivating Solanaceae plants. Components adapted to irrigate the plants in the plant cultivation area are known in the art, including but not limited to sprinkler irrigation, mist irrigation, and drip irrigation.

[0110] Therefore, the agricultural system for cultivating Solanaceae plants according to the present invention may include sub-components adapted to control the nutrients supplied to the plants to maintain plant cultivation conditions particularly suitable for cultivating Solanaceae plants. Components adapted to control the nutrients supplied to the plants in the plant cultivation area are known in the art. The nutrient distribution system is preferably integrated into the irrigation system, and most preferably integrated into the drip irrigation system.

[0111] The agricultural system for cultivating Solanaceae plants according to the present invention may further include a control unit that controls one or more sub-components included in the system of the present invention, wherein the one or more sub-components include, but are not limited to: components adapted to control temperature, components adapted to control humidity, components adapted to control carbon dioxide (CO2) content, components adapted to control shading, components adapted to control ventilation, components adapted to control irrigation, and components adapted to control nutrient distribution.

[0112] The agricultural system according to the invention includes a plant cultivation area, which therefore includes a plant cultivation substrate that provides suitable support for the root systems of plants cultivated in the plant cultivation space. Suitable plant cultivation substrates for cultivating Solanaceae plants are well known in the art. In one aspect, the system according to the invention includes a plant cultivation substrate in the plant cultivation area, wherein the plant cultivation substrate preferably comprises one or more of soil, mineral wool, vermiculite, and perlite.

[0113] Methods for cultivating Solanaceae plants

[0114] The present invention also provides a method for cultivating plants, characterized in that the solanaceous plants are cultivated in the system for cultivating solanaceous plants according to the present invention. In the context of the agricultural system for cultivating solanaceous plants according to the present invention, all the technical features described herein can also be applied to the method for cultivating solanaceous plants according to the present invention.

[0115] Therefore, the present invention provides a method for cultivating Solanaceae plants in a controlled plant cultivation environment lacking solar UV radiation, the method comprising subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

[0116] Therefore, the method for cultivating Solanaceae plants according to the present invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm. Preferably, the method for cultivating Solanaceae plants according to the present invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 320 nm, 300 nm to 318 nm, 300 nm to 316 nm, 300 nm to 315 nm, 300 nm to 314 nm, 300 nm to 313 nm, 300 nm to 312 nm, 300 nm to 311 nm, 300 nm to 310 nm, 301 nm to 322 nm, 301 nm to 320 nm, 301 nm to 318 nm, 301 nm to 316 nm, 301 nm to 315 nm, 301 nm to 314 nm, 301 nm to 322 nm, 301 nm to 320 nm, 301 nm to 318 nm, 301 nm to 316 nm, 301 nm to 315 nm, 301 nm to 314 nm, 301 nm to 322 nm. m to 313nm, 301nm to 312nm, 301nm to 311nm, 301nm to 310nm, 302nm to 322nm, 302nm to 320nm, 302nm to 318nm, 302nm to 316nm, 302nm to 315nm, 302nm to 314nm, 302nm to 313nm, 302nm to 312nm, 302nm to 311nm, 302nm to 310nm, 303nm to 322nm, 303nm to 320nm, 303nm to 318nm, 303nm to 316nm, 303nm to 315n m, 303nm to 314nm, 303nm to 313nm, 303nm to 312nm, 303nm to 311nm, 303nm to 310nm, 304nm to 322nm, 304nm to 320nm, 304nm to 318nm, 304nm to 316nm, 304nm to 315nm, 304nm to 314nm, 304nm to 313nm, 304nm to 312nm, 304nm to 311nm, 304nm to 310nm, 305nm to 322nm, 305nm to 320nm, 305nm to 318nm, 305 Supplemental UV radiation emitted by UV-LED light sources in the ranges of 305nm to 316nm, 305nm to 315nm, 305nm to 314nm, 305nm to 313nm, 305nm to 312nm, 305nm to 311nm, 305nm to 310nm, 306nm to 322nm, 306nm to 320nm, 306nm to 318nm, 306nm to 316nm, 306nm to 315nm, 306nm to 314nm, 306nm to 313nm, 306nm to 312nm, 306nm to 311nm, or 306nm to 310nm.More preferably, the method for cultivating Solanaceae plants according to the present invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 305 nm to 315 nm.

[0117] Preferably, the method for cultivating Solanaceae plants according to the invention does not involve subjecting the cultivated plants to supplemental UV emitted by a gas discharge UV light source. More preferably, the method for cultivating Solanaceae plants does not involve subjecting the cultivated plants to supplemental UV emitted by a supplemental UV light source other than the UV-LED light source according to the invention.

[0118] Therefore, the present invention provides a method for cultivating Solanaceae plants. Preferably, the Solanaceae plant cultivated in the method according to the invention is a potato plant, tobacco plant, pepper plant, eggplant, or tomato plant. Most preferably, the Solanaceae plant cultivated in the method according to the invention is a tomato plant.

[0119] In one aspect, in the method for cultivating Solanaceae plants according to the invention, the UV-LED light source that exposes the plants to supplemental UV radiation is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of at most 30 nm. Preferably, in the method for cultivating Solanaceae plants according to the invention, the UV-LED light source that exposes the plants to supplemental UV radiation is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of at most 29 nm, 28 nm, 27 nm, 26 nm, 25 nm, 24 nm, 23 nm, 22 nm, 21 nm, 20 nm, 19 nm, 18 nm, 17 nm, 16 nm, 15 nm, 14 nm, 13 nm, 12 nm, 11 nm, or 10 nm.

[0120] Preferably, the method for cultivating Solanaceae plants according to the invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm (i.e., peak wavelength of 300 nm to 322 nm) and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of up to 30 nm; peak wavelength in the range of 300 nm to 315 nm. The peak wavelengths are 300nm to 314nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 300nm to 313nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 300nm to 312nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 300nm to 311nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 300nm to 310nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 301nm to 322nm and the FWHM emission spectrum is at most 30nm; the peak wavelengths are 301nm to 320nm and the FWHM emission spectrum is at most 30nm; and the peak wavelengths are 301nm to 318nm and the FWHM emission spectrum is at most... 30nm, peak wavelength 301nm to 316nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 315nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 314nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 313nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 312nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 311nm with FWHM emission spectrum up to 30nm, peak wavelength 301nm to 310nm with FWHM emission spectrum up to 30nm, peak wavelength 302nm to 322nm The emission spectrum of FWHM is at most 30 nm, with a peak wavelength of 302 nm to 320 nm, with a peak wavelength of 302 nm to 318 nm, with a peak wavelength of 302 nm to 316 nm, with a peak wavelength of 302 nm to 315 nm, with a peak wavelength of 302 nm to 314 nm, with a peak wavelength of 302 nm to 313 nm, and with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 30nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 30nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 30 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 305 nm to 322 nm. Furthermore, the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 30 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 30 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 30 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 30 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 30 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 30 nm.

[0121] More preferably, the method for cultivating Solanaceae plants according to the present invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 27 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 27 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 27 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 27 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 27 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 27 nm. The emission spectrum is at most 27 nm, with a peak wavelength of 300 nm to 313 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 300 nm to 312 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 300 nm to 311 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 300 nm to 310 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 301 nm to 322 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 301 nm to 320 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 301 nm to 318 nm, and the emission spectrum of FWHM is at most 27 nm, with a peak wavelength of 300 nm to 313 nm. The peak wavelengths are 301 nm to 316 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 315 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 314 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 313 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 312 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 311 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 301 nm to 310 nm and the FWHM emission spectrum is at most 27 nm; the peak wavelengths are 302 nm to 322 nm and the FWHM emission spectrum is at most 27 nm. The WHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 320 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 318 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 316 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 315 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 314 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 313 nm, and the FWHM emission spectrum is at most 27 nm with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 27 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 27 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 27 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 27 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 27 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 27 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 27 nm.

[0122] Even more preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 25 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 25 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 25 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 25 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 25 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 25 nm. The emission spectrum is at most 25 nm, with a peak wavelength of 300 nm to 313 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 300 nm to 312 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 300 nm to 311 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 300 nm to 310 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 301 nm to 322 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 301 nm to 320 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 301 nm to 318 nm, and the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 300 nm to 313 nm. The wavelength ranges from 301 nm to 316 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 315 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 314 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 313 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 312 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; the peak wavelength ranges from 301 nm to 310 nm with an FWHM emission spectrum of up to 25 nm; and the peak wavelength ranges from 302 nm to 322 nm with an FWHM emission spectrum of up to 25 nm. The WHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 320 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 318 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 316 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 315 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 314 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 313 nm, and the FWHM emission spectrum is at most 25 nm with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 25nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 25nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 25 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 25 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 25 nm with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 25 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 25 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 25 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 25 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 25 nm.

[0123] Particularly preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 22 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 22 nm. The emission spectrum is at most 22 nm, with a peak wavelength of 300 nm to 313 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 300 nm to 312 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 300 nm to 311 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 300 nm to 310 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 301 nm to 322 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 301 nm to 320 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 301 nm to 318 nm, and the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 300 nm to 313 nm. The wavelength ranges from 301 nm to 316 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 314 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 313 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 312 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; the peak wavelength ranges from 301 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; and the peak wavelength ranges from 302 nm to 322 nm with an FWHM emission spectrum of up to 22 nm. The WHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 320 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 318 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 316 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 315 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 314 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 313 nm, and the FWHM emission spectrum is at most 22 nm with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 22 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 22 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 22 nm with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 22 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 22 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 22 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 22 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 22 nm.

[0124] More particularly preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 21 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 21 nm. The emission spectrum is at most 21 nm, with a peak wavelength of 300 nm to 313 nm, and the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 300 nm to 312 nm; the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 300 nm to 311 nm; the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 300 nm to 310 nm; the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 301 nm to 322 nm; the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 301 nm to 320 nm; the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 301 nm to 318 nm; and the emission spectrum of FWHM is at most 21 nm, with a peak wavelength of 300 nm to 313 nm. The wavelength ranges from 301 nm to 316 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 314 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 313 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 312 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; the peak wavelength ranges from 301 nm to 310 nm with an FWHM emission spectrum of up to 21 nm; and the peak wavelength ranges from 302 nm to 322 nm with an FWHM emission spectrum of up to 21 nm. The WHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 320 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 318 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 316 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 315 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 314 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 313 nm, and the FWHM emission spectrum is at most 21 nm with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 21 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 21 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 21 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 21 nm, peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 21 nm, Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 21 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 21 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 21 nm.

[0125] Even more particularly preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 20 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 20 nm. The emission spectrum is at most 20 nm, with a peak wavelength of 300 nm to 313 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 300 nm to 312 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 300 nm to 311 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 300 nm to 310 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 301 nm to 322 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 301 nm to 320 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 301 nm to 318 nm, and the emission spectrum of FWHM is at most 20 nm, with a peak wavelength of 300 nm to 313 nm. The wavelength ranges from 301 nm to 316 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 315 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 314 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 313 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 312 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; the peak wavelength ranges from 301 nm to 310 nm with an FWHM emission spectrum of up to 20 nm; and the peak wavelength ranges from 302 nm to 322 nm with an FWHM emission spectrum of up to 20 nm. The WHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 320 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 318 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 316 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 315 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 314 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 313 nm, and the FWHM emission spectrum is at most 20 nm with a peak wavelength of 302 nm to 312 nm.Peak wavelengths of 302nm to 311nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 302nm to 310nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 322nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 320nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 318nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 316nm with an FWHM emission spectrum of up to 20nm, peak wavelengths of 303nm to 315nm with an FWHM emission spectrum of up to 20nm, and peak wavelengths of 303nm to 314nm. The FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 304 nm to 318 nm; and the FWHM emission spectrum is at most 20 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 20 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 20 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 20 nm. Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 20 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 20 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 20 nm.

[0126] Most preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: peak wavelength in the range of 300 nm to 322 nm and FWHM emission spectrum of at most 18 nm; peak wavelength in the range of 300 nm to 320 nm and FWHM emission spectrum of at most 18 nm; peak wavelength in the range of 300 nm to 318 nm and FWHM emission spectrum of at most 18 nm; peak wavelength in the range of 300 nm to 316 nm and FWHM emission spectrum of at most 18 nm; peak wavelength in the range of 300 nm to 315 nm and FWHM emission spectrum of at most 18 nm; peak wavelength in the range of 300 nm to 314 nm and FWHM emission spectrum of at most 18 nm. The spectrum is at most 18 nm, with a peak wavelength of 300 nm to 313 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 300 nm to 312 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 300 nm to 311 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 300 nm to 310 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 301 nm to 322 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 301 nm to 320 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 301 nm to 318 nm, and the FWHM emission spectrum is at most 18 nm, with a peak wavelength of... The peak wavelengths are 301nm to 316nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 315nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 314nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 313nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 312nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 311nm and the FWHM emission spectrum is at most 18nm; the peak wavelengths are 301nm to 310nm and the FWHM emission spectrum is at most 18nm; and the peak wavelengths are 302nm to 322nm and the FWHM emission spectrum is at most 18nm. HM emission spectrum up to 18 nm, peak wavelength from 302 nm to 320 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 318 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 316 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 315 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 314 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 313 nm; FWHM emission spectrum up to 18 nm, peak wavelength from 302 nm to 312 nm; and FWHM emission spectrum up to 18 nm.Peak wavelengths of 302 nm to 311 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 302 nm to 310 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 303 nm to 322 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 303 nm to 320 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 303 nm to 318 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 303 nm to 316 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 303 nm to 315 nm with an FWHM emission spectrum of up to 18 nm, and peak wavelengths of 303 nm to 314 nm. The FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 313 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 312 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 311 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 303 nm to 310 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 322 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 320 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 304 nm to 318 nm; the FWHM emission spectrum is at most 18 nm. Peak wavelengths of 304 nm to 316 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 315 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 314 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 313 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 312 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 311 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 304 nm to 310 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 305 nm to 322 nm. The FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 320 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 318 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 316 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 315 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 314 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 313 nm; the FWHM emission spectrum is at most 18 nm, with a peak wavelength of 305 nm to 312 nm; and the FWHM emission spectrum is at most 18 nm.Peak wavelengths of 305 nm to 311 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 305 nm to 310 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 306 nm to 322 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 306 nm to 320 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 306 nm to 318 nm with an FWHM emission spectrum of up to 18 nm, peak wavelengths of 306 nm to 316 nm with an FWHM emission spectrum of up to 18 nm, Peak wavelengths of 306 nm to 315 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 314 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 313 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 312 nm with an FWHM emission spectrum of up to 18 nm; peak wavelengths of 306 nm to 311 nm with an FWHM emission spectrum of up to 18 nm; or peak wavelengths of 306 nm to 310 nm with an FWHM emission spectrum of up to 18 nm.

[0127] In one aspect, in the method for cultivating Solanaceae plants according to the invention, the intensity of the UV radiation emitted by the UV-LED light source that subjectes the plant to supplemental UV radiation is 0.1 μmol / m at the plant height. 2 / s to 2μmol / m 2 / s. Preferably, in the method for cultivating Solanaceae plants according to the invention, the intensity of the UV radiation emitted by the UV-LED light source that exposes the plant to supplemental UV radiation at the plant height is 0.1 μmol / m. 2 / s to 2μmol / m 2 / s, 0.2μmol / m 2 / s to 2μmol / m 2 / s, 0.3μmol / m 2 / s to 2μmol / m 2 / s, 0.1μmol / m 2 / s to 1.5μmol / m 2 / s, 0.2μmol / m 2 / s to 1.5μmol / m 2 / s, 0.3μmol / m 2 / s to 1.5μmol / m 2 / s, 0.1μmol / m 2 / s to 1μmol / m 2 / s, 0.2μmol / m 2 / s to 1μmol / m 2 / s or 0.3μmol / m2 / s to 1μmol / m 2 / s. Most preferably, in the method for cultivating Solanaceae plants according to the invention, the intensity of the UV radiation emitted by the UV-LED light source that exposes the plant to supplemental UV radiation at the plant height is 0.3 μmol / m. 2 / s to 1.5μmol / m 2 / s.

[0128] Therefore, the method for cultivating Solanaceae plants according to the present invention includes subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: a peak wavelength in the range of 300 nm to 322 nm (i.e., a peak wavelength of 300 nm to 322 nm), an FWHM emission spectrum of at most 30 nm (i.e., an FWHM spectrum of at most) 0.1 μmol / m at plant height (i.e., an intensity of 0.1 μmol / m). 2 / s to 2μmol / m 2 / s. Preferably, the method for cultivating Solanaceae plants according to the invention comprises subjecting the plants to supplemental UV radiation emitted by a UV-LED light source having the following parameters: a peak wavelength of 300 nm to 322 nm, an FWHM spectrum of up to 30 nm, and an intensity of 0.1 μmol / m. 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.1 μmol / m 2 / s to 2μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.2 μmol / m 2 / s to 1.5μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 30 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 27 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 25 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 305 nm to 315 nm, FWHM spectrum up to 22 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 322 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 320 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; peak wavelength from 300 nm to 315 nm, FWHM spectrum up to 20 nm, and intensity 0.3 μmol / m 2 / s to 1μmol / m 2 / s; or a peak wavelength of 305 nm to 315 nm, an FWHM spectrum of up to 20 nm, and an intensity of 0.3 μmol / m 2 / s to 1μmol / m 2 / s.

[0129] In the method for cultivating Solanaceae plants according to the invention, the Solanaceae plants are subjected to conditions suitable for cultivation. These suitable conditions include subjecting the Solanaceae plants to an effective amount of non-UV light. This non-UV light may originate from the sun (e.g., in a glass greenhouse) and / or from an artificial light source. The effective amount of non-UV light is characterized by subjecting the cultivated plants to non-UV light of intensity and spectral composition suitable for Solanaceae plant cultivation. Such non-UV light with spectral composition and intensity suitable for Solanaceae plant cultivation is known in the art.

[0130] In one aspect, the method for cultivating Solanaceae plants according to the invention further includes subjecting the plants to supplemental non-UV light emitted by an artificial non-UV light source. Preferably, the artificial non-UV light source is a "non-UV-LED light source".

[0131] In one aspect, the supplemental non-UV light in the method according to the invention includes 5 μmol / m at plant height. 2 / s to 1000 μmol / m 2The intensity is 5 μmol / m². Preferably, the supplemental non-UV light in the method according to the invention comprises 5 μmol / m² at plant height. 2 / s to 1000 μmol / m 2 / s, 10μmol / m 2 / s to 1000 μmol / m 2 / s, 15μmol / m 2 / s to 1000 μmol / m 2 / s, 20μmol / m 2 / s to 1000 μmol / m 2 / s, 25μmol / m 2 / s to 1000 μmol / m 2 / s, 30μmol / m 2 / s to 1000 μmol / m 2 / s, 35μmol / m 2 / s to 1000 μmol / m 2 / s, 40μmol / m 2 / s to 1000 μmol / m 2 / s, 50μmol / m 2 / s to 1000 μmol / m 2 / s, 60μmol / m 2 / s to 1000 μmol / m 2 / s, 70μmol / m 2 / s to 1000 μmol / m 2 / s, 80μmol / m 2 / s to 1000 μmol / m 2 / s, 90μmol / m 2 / s to 1000 μmol / m 2 / s, 100μmol / m 2 / s to 1000 μmol / m 2 / s, 5μmol / m 2 / s to 500μmol / m 2 / s, 10μmol / m 2 / s to 500μmol / m 2 / s, 15μmol / m 2 / s to 500μmol / m 2 / s, 20μmol / m 2 / s to 500μmol / m 2 / s, 25μmol / m 2 / s to 500μmol / m 2 / s, 30μmol / m 2 / s to 500μmol / m 2 / s, 35μmol / m 2 / s to 500μmol / m 2 / s, 40μmol / m 2 / s to 500μmol / m 2 / s, 50μmol / m 2 / s to 500μmol / m 2 / s, 60μmol / m 2 / s to 500μmol / m 2 / s, 70μmol / m 2 / s to 500μmol / m 2 / s, 80μmol / m 2 / s to 500μmol / m 2 / s, 90μmol / m 2 / s to 500μmol / m 2 / s, 100μmol / m 2 / s to 500μmol / m 2 / s, 5μmol / m 2 / s to 250μmol / m 2 / s, 10μmol / m 2 / s to 250μmol / m 2 / s, 15μmol / m 2 / s to 250μmol / m 2 / s, 20μmol / m 2 / s to 250μmol / m 2 / s, 25μmol / m 2 / s to 250μmol / m 2 / s, 30μmol / m 2 / s to 250μmol / m 2 / s, 35μmol / m 2 / s to 250μmol / m 2 / s, 40μmol / m 2 / s to 250μmol / m 2 / s, 50μmol / m 2 / s to 250μmol / m 2 / s, 60μmol / m 2 / s to 250μmol / m 2 / s, 70μmol / m 2 / s to 250μmol / m 2 / s, 80μmol / m 2 / s to 250μmol / m2 / s, 90μmol / m 2 / s to 250μmol / m 2 / s, 100μmol / m 2 / s to 250μmol / m 2 / s, 5μmol / m 2 / s to 200μmol / m 2 / s, 10μmol / m 2 / s to 200μmol / m 2 / s, 15μmol / m 2 / s to 200μmol / m 2 / s, 20μmol / m 2 / s to 200μmol / m 2 / s, 25μmol / m 2 / s to 200μmol / m 2 / s, 30μmol / m 2 / s to 200μmol / m 2 / s, 35μmol / m 2 / s to 200μmol / m 2 / s, 40μmol / m 2 / s to 200μmol / m 2 / s, 50μmol / m 2 / s to 200μmol / m 2 / s, 60μmol / m 2 / s to 200μmol / m 2 / s, 70μmol / m 2 / s to 200μmol / m 2 / s, 80μmol / m 2 / s to 200μmol / m 2 / s, 90μmol / m 2 / s to 200μmol / m 2 / s, 100μmol / m 2 / s to 200μmol / m 2 / s, 5μmol / m 2 / s to 180μmol / m 2 / s, 10μmol / m 2 / s to 180μmol / m 2 / s, 15μmol / m 2 / s to 180μmol / m 2 / s, 20μmol / m 2 / s to 180μmol / m 2 / s、25μmol / m 2 / s to 180μmol / m 2 / s、30μmol / m 2 / s to 180μmol / m 2 / s、35μmol / m 2 / s to 180μmol / m 2 / s、40μmol / m 2 / s to 180μmol / m 2 / s、50μmol / m 2 / s to 180μmol / m 2 / s、60μmol / m 2 / s to 180μmol / m 2 / s、70μmol / m 2 / s to 180μmol / m 2 / s、80μmol / m 2 / s to 180μmol / m 2 / s、90μmol / m 2 / s to 180μmol / m 2 / s、100μmol / m 2 / s to 180μmol / m 2 / s、5μmol / m 2 / s to 170μmol / m 2 / s、10μmol / m 2 / s to 170μmol / m 2 / s、15μmol / m 2 / s to 170μmol / m 2 / s、20μmol / m 2 / s to 170μmol / m 2 / s、25μmol / m 2 / s to 170μmol / m 2 / s、30μmol / m 2 / s to 170μmol / m 2 / s、35μmol / m 2 / s to 170μmol / m 2 / s、40μmol / m 2 / s to 170μmol / m 2 / s、50μmol / m 2 / s to 170μmol / m 2 / s、60μmol / m 2 / s to 170μmol / m 2 / s、70μmol / m2 / s to 170μmol / m 2 / s, 80μmol / m 2 / s to 170μmol / m 2 / s, 90μmol / m 2 / s to 170μmol / m 2 / s, 100μmol / m 2 / s to 170μmol / m 2 / s, 5μmol / m 2 / s to 160μmol / m 2 / s, 10μmol / m 2 / s to 160μmol / m 2 / s, 15μmol / m 2 / s to 160μmol / m 2 / s, 20μmol / m 2 / s to 160μmol / m 2 / s, 25μmol / m 2 / s to 160μmol / m 2 / s, 30μmol / m 2 / s to 160μmol / m 2 / s, 35μmol / m 2 / s to 160μmol / m 2 / s, 40μmol / m 2 / s to 160μmol / m 2 / s, 50μmol / m 2 / s to 160μmol / m 2 / s, 60μmol / m 2 / s to 160μmol / m 2 / s, 70μmol / m 2 / s to 160μmol / m 2 / s, 80μmol / m 2 / s to 160μmol / m 2 / s, 90μmol / m 2 / s to 160μmol / m 2 / s, 100μmol / m 2 / s to 160μmol / m 2 / s, 5μmol / m 2 / s to 150μmol / m 2 / s, 10μmol / m 2 / s to 150μmol / m 2 / s, 15μmol / m 2 / s to 150μmol / m 2 / s, 20μmol / m 2 / s to 150μmol / m 2 / s, 25μmol / m 2 / s to 150μmol / m 2 / s, 30μmol / m 2 / s to 150μmol / m 2 / s, 35μmol / m 2 / s to 150μmol / m 2 / s, 40μmol / m 2 / s to 150μmol / m 2 / s, 50μmol / m 2 / s to 150μmol / m 2 / s, 60μmol / m 2 / s to 150μmol / m 2 / s, 70μmol / m 2 / s to 150μmol / m 2 / s, 80μmol / m 2 / s to 150μmol / m 2 / s, 90μmol / m 2 / s to 150μmol / m 2 / s or 100μmol / m 2 / s to 150μmol / m 2 Intensity per second.

[0132] In one aspect, the supplemental non-UV light in the method according to the invention comprises: a blue light component (B) with a peak wavelength of greater than 400 nm to at most 495 nm (preferably 435 nm to 485 nm), a green light component (G) with a peak wavelength of greater than 495 nm to at most 590 nm (preferably 500 nm to 550 nm), a red light component (R) with a peak wavelength of greater than 590 nm to at most 700 nm (preferably 600 nm to 650 nm), and a far-red light component (Fr) with a peak wavelength of greater than 700 nm to at most 800 nm. The spectral composition of non-UV light sources that can be used for cultivating Solanaceae plants is known in the art. Therefore, in the context of this invention, the spectral composition of a useful non-UV light source comprises 0% to 40% B, 0% to 40% G, 50% to 100% R and 0% to 40% Fr, preferably 10% to 20% B, 2% to 10% G, 70% to 90% R and 15% to 15% Fr, more preferably 12% to 16% B, 3% to 7% G, 75% to 85% R and 11% to 15% Fr.

[0133] In one aspect, the spectral composition of the light applied to the plant in the method of the invention produces a photosensitive pigment steady-state (PSS) value that is particularly useful in the cultivation of Solanaceae plants. Such PSS values ​​useful in the cultivation of Solanaceae plants are known in the art. In one aspect, the spectral composition of the light applied to the Solanaceae plant produces a photosensitive pigment steady-state (PSS) value of 0.70 to 0.90, preferably 0.82 to 0.90, more preferably 0.82 to 0.88, and most preferably 0.83 to 0.87.

[0134] The method for cultivating Solanaceae plants according to the invention may further include photoperiod, which refers to the period of time during which the plant is exposed to light (“photoperiod”), and a period of time during which the plant is not exposed to light (“nighttime”). In one aspect, the method for cultivating Solanaceae plants according to the invention includes exposing the plant to light for 10 to 20 hours per day, preferably 12 to 18 hours per day, more preferably 14 to 16 hours per day. In another aspect, the method for cultivating Solanaceae plants according to the invention includes exposing the plant to non-UV light for 10 to 20 hours per day, preferably 12 to 18 hours per day, more preferably 14 to 16 hours per day. The method for cultivating Solanaceae plants according to the invention may further include UV photoperiod, which, in the context of the invention, refers to the period of time during which the plant is exposed to UV light (“UV photoperiod”), and a period of time during which the plant is not exposed to UV light. In one aspect, the method for cultivating Solanaceae plants according to the invention includes subjecting the plants to supplemental UV radiation for 1 to 24 hours per day, preferably 4 to 20 hours per day, more preferably 6 to 18 hours per day, and even more preferably 8 to 16 hours per day. In another aspect, the method for cultivating Solanaceae plants according to the invention includes subjecting the plants to supplemental UV radiation for a shorter period per day than subjecting them to non-UV light. Preferably, the method for cultivating Solanaceae plants according to the invention includes turning off the UV-LED light source when humans are present in the plant's growing space, for example, by using an automated system such as a clock switch or motion detector switch.

[0135] The conditions suitable for cultivating Solanaceae plants included in the method for cultivating Solanaceae plants according to the present invention may further include: a suitable temperature for cultivating Solanaceae plants, a suitable humidity for cultivating Solanaceae plants, a suitable carbon dioxide (CO2) content for cultivating Solanaceae plants, suitable irrigation for cultivating Solanaceae plants, and suitable nutrient distribution for cultivating Solanaceae plants. The suitable temperature, suitable humidity, suitable carbon dioxide (CO2) content, suitable irrigation, and suitable nutrient distribution for cultivating Solanaceae plants are well known in the art. In the context of the method of the present invention, suitable temperature ranges, suitable relative humidity ranges, and suitable carbon dioxide (CO2) content ranges for cultivating Solanaceae plants are described in more detail herein in the context of the agricultural system of the present invention. Preferably, the method for cultivating Solanaceae plants according to the present invention includes cultivating Solanaceae plants under controlled conditions. In one aspect, the solanaceous plants according to the method of the invention are cultivated under controlled conditions, which include one or more of the following: a temperature in the range of 14°C to 30°C; a relative humidity in the range of 40% to 95%; and a carbon dioxide content in the range of 300 ppm to 2000 ppm. Preferably, the solanaceous plants according to the method of the invention are cultivated under controlled conditions, which include one or more of the following: a temperature in the range of 16°C to 28°C; a relative humidity in the range of 50% to 85%; and a carbon dioxide content in the range of 300 ppm to 1200 ppm.

[0136] In the context of this invention, Solanaceae plants are cultivated on a plant cultivation substrate that provides suitable support for the root system of the Solanaceae plants. Therefore, the method according to the invention includes cultivating Solanaceae plants on a plant cultivation substrate, wherein the plant cultivation substrate preferably comprises one or more of soil, mineral wool, vermiculite, and perlite. Thus, Solanaceae plants can be cultivated in soil (whole soil or in pots), in perlite bags, on aerated nutrient solutions, on rock wool, or hydroponically (e.g., on sawdust or rock wool).

[0137] In one aspect, the present invention provides the use of supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm for the cultivation of Solanaceae plants. This use of supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm for the cultivation of Solanaceae plants is associated with a number of advantageous technical effects, including but not limited to reducing swelling damage in Solanaceae plants cultivated in areas lacking solar UV radiation.

[0138] Therefore, the present invention provides the use of supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm for reducing swelling damage in Solanaceae plants cultivated in plant cultivation areas lacking solar UV radiation.

[0139] In the context of the agricultural system for cultivating Solanaceae plants according to the invention described herein, and in the context of the method for cultivating Solanaceae plants, all the technical features described herein may also be advantageously applied to the uses according to the invention.

[0140] Solanaceae plants used in the context of this invention can be cultivated for the production and harvesting of fruits. The fruits can be used specifically as food. Furthermore, the fruits can be used for the seeds that develop within them. In the latter case, Solanaceae plants used in the context of this invention can be cultivated for seed production. The method of this invention can be used to produce seeds of any Solanaceae plant susceptible to swelling damage when cultivated in a controlled plant cultivation environment lacking solar UV radiation, wherein the seeds are produced by seed-producing plants. Therefore, the method and use of this invention for cultivating Solanaceae plants are particularly applicable to the production of plant seeds in a controlled plant cultivation environment lacking solar UV radiation. Therefore, this invention is particularly applicable to seed production in tunnels, in glass greenhouses, or in climate chambers. Therefore, in one aspect, all seed-producing plants belong to the same maternal line, preferably the same inbred maternal line. Similarly, it should be understood that the paternal plants previously used for pollinating the maternal plants belong to a genotype, such as a paternal line, such as a paternal inbred line. In one aspect, the seed-producing plants in the method or use of this invention are inbred plants. In one aspect, the seed-producing plant in the method or use of the present invention is an F1 hybrid parental line. In one aspect, the seed-producing plant in the method or use of the present invention is an emasculated plant. In one aspect, the seed-producing plant in the method or use of the present invention is a male-sterile plant. In one aspect, the plant seeds produced by the seed-producing plant are F1 hybrid plant seeds. Such F1 hybrid plants may have advantages such as improved uniformity, vigor, and / or disease tolerance.

[0141] Example

[0142] Example 1

[0143] In Example 1, it was determined which wavelength of UV-LED light was most effective in inhibiting tomato swelling. The experiment was conducted in four areas with a net area of ​​2m². 2 The experiment was conducted in a climate chamber within the laboratory. The set points and timelines for this experiment are shown in Tables 1.1 and 1.2. LED lighting was used, but no artificial sunlight was observed. A control without any UV light was compared to a treatment that received additional UV light of different wavelengths during the illumination period (Table 1.3). The illumination is described in detail below.

[0144] Table 1.1. Setpoints.

[0145]

[0146] Table 1.2 Timeline

[0147]

[0148] Table 1.3 shows the treatments. All treatments also have LED lighting.

[0149]

[0150] All four climate chambers are equipped with LED lighting, with a spectrum of 14%B 5%G 81%R 13%Fr relative to PAR and a PSS of 0.86 (see spectrum). Figure 1 No artificial sunlight was used. The photoperiod was 15 hours per day, with an intensity of 100 μmol / m² / s at 0 das and 150 μmol / m² / s at plant height from 21 das onwards. 2 / s (Table 1.2).

[0151] Custom UV LEDs were used (Illumicent, Breda, Netherlands). The 285nm UV-C LED was an XBT-3535-UV type (Luminus Devices, Inc. Sunnyvale, CA), and the 308nm and 325nm LEDs were MODEL308-FL-02-U05 and MODEL 325-FL-02-U05 (DOWA Electronics Materials Co., Ltd), respectively. The spectrum is shown in... Figure 2 In all three treatments, the UV light intensity at plant height was 0.12 μmol / m. 2 / s. UV light is only turned on during the illumination period.

[0152] Seedlings 10 days after treatment began showed severe leaf damage due to swelling in the control group without UV exposure. Figure 3 Seedlings treated with 285nm UV were severely damaged and stunted. However, this was not a result of swelling, but rather damage caused by UV radiation at that specific wavelength (close to the UV-C band). Such short-wavelength UV radiation is known to be highly harmful to living tissue. Treatment at 285nm was discontinued.

[0153] When treated with 308nm UV light, the seedlings were healthy and large, with no visible swelling at this stage. Seedlings treated with 325nm UV light showed mild swelling symptoms, but still looked much better than the untreated control. Figure 3 ).

[0154] One week later, at 24 days, there was still a huge difference in leaf damage between the plants treated with UV light and the control group without any UV light. Figure 4 The image shows the lower (far axis) side of a representative fully elongated leaf from the top of the plant. By this point, swelling was also observed in the 308nm-treated plants, but the leaves were much larger than those in the untreated control. The leaves in the 325nm-treated plants were smaller than those in the 308nm-treated plants, but still larger than the control, and showed less damage from swelling.

[0155] Ten days later, at 34 das, the plants were photographed, and their length and fresh weight were measured, concluding the experiment. Plants treated with 308nm UV were significantly larger than the untreated control, while plants treated with 325nm UV were somewhere in between. Figures 5 to 6 The control plants were stunted, with damaged lower leaves that were strongly curled and pointing downwards.

[0156] The first flowering inflorescences appeared in plants treated with 308 nm and 325 nm UV light, but not in the control without any UV light. Therefore, under these conditions, without supplemental UV light, fruit production of this variety can be expected to be significantly delayed or completely failed.

[0157] Figure 7 Fully elongated leaves from the top of the plants were compared between the control and UV-treated plants. Leaves from plants treated with 308 nm UV were larger than those from untreated controls or plants treated with 325 nm UV. Leaves from the 325 nm-treated plants were paler than the other two.

[0158] In the control group without UV and in plants treated with 325nm UV, the base of the stem showed obvious swelling symptoms, but this was not observed in plants treated with 308nm UV. Figure 8 The latter's stem is also thicker than the other two, and it still has cotyledons attached, while the cotyledons of the other two have fallen off.

[0159] The final plant height at harvest was the lowest for the control plants without any UV light, followed by the plants treated with 325nm UV. The plants treated with 308nm UV were much larger, twice the height of the control. Figure 9 ).

[0160] Plants remaining after thinning at 24 days from the 308 nm UV treatment were transferred to the 285 nm UV treatment. These plants were severely damaged and showed reduced growth at the final harvest at 34 days compared to the 308 nm-treated plants. This again demonstrates that 285 nm UV light in the UV-B band is highly detrimental to tomato cultivation and unsuitable for preventing swelling damage.

[0161] The difference in fresh weight on the ground at the final harvest is even more significant. Figure 10 Plants treated with 308nm UV light weighed seven times more than the control plants, while plants treated with 325nm light weighed twice as much as the untreated control plants. These data indicate that UV wavelength is the primary factor determining swelling resistance within this LED spectrum.

[0162] In an indoor cultivation system with LED lighting, tomato plants of the "Competition" variety suffered severe damage from swelling. Plants were stunted, with cotyledon and lower leaf drop, stem and leaf damage, and reduced leaf size. The results indicated that low-intensity supplemental UV light reduced swelling damage, but this was highly dependent on the UV wavelength. A peak UV wavelength of 308 nm was optimal. Plants treated with this wavelength were the largest and showed no swelling damage at the base of the stem, but damage was present on the underside of the leaves. A slightly shorter peak wavelength of 285 nm was unsuitable for protecting plants from swelling, as this short wavelength of UV light is extremely harmful to seedlings. A longer wavelength of 325 nm reduced swelling symptoms compared to the control, which received no UV light, but its effect was far less than that of 308 nm UV light. This was particularly evident in the aboveground fresh weight: the fresh weight in the 308 nm UV treatment was 7 times that of the control, but in the 325 nm UV treatment, it was only 2 times that of the control. Therefore, the bandwidth of the effective UV wavelength for inhibiting swelling is surprisingly narrow.

[0163] Example 2

[0164] In Example 2, the optimal intensity of 308 nm UV light for inhibiting tomato swelling was determined. Example 1 showed that these plants suffered severe damage from swelling in an LED spectrum with a spectral density of 14%B 5%G 81%R 13%Fr relative to PAR and a PSS of 0.86, and 0.12 μmol / m 2 / s 308nm UV light is far more effective at suppressing swelling than the shorter wavelength of 285nm or the longer wavelength of 325nm. The setpoints and timelines for this embodiment are shown in Tables 2.1 and 2.2. LED lighting was used, but no artificial sunlight was observed. A control without any UV light is compared to a treatment that provides additional 308nm UV light of varying intensities during the illumination period (Table 2.3). The illumination was described in detail in Example 1 above.

[0165] Table 2.1. Setpoints.

[0166]

[0167] Table 2.2 Timeline

[0168]

[0169] Table 2.3 Treatments. All treatments also have LED lighting.

[0170]

[0171] The lighting is the same as in Example 1, except that only 308nm UV light of varying intensities is used. All four climate chambers are equipped with LED lighting with a spectrum of 14%B 5%G 81%R 13%Fr relative to PAR and a PSS of 0.86 (see spectrum). Figure 1 There is no artificial sunlight.

[0172] A custom-designed UV LED lamp was used as in Example 1. The 308nm LED was MODEL 308-FL-02-U05 (DOWA Electronics Materials Co., Ltd). The spectrum is shown in... Figure 2 The UV light intensity is shown in Table 2.3. UV light is only activated during the illumination period.

[0173] The plants in the control group without UV radiation again showed severe damage due to swelling, as in Example 1. They remained stunted, with small, downward-curling leaves, loss of cotyledons and lower leaves, and visible damage at the base of the stem. Figures 11 to 14 In contrast, plants under all intensities of 308nm UV light are much larger.

[0174] Compared with the control, at the final harvest 34 days after sowing, plant height and fresh weight were significantly increased in all 308nm UV treatments. Figure 15 , Figure 16 Compared to the control, the fresh weight increased by up to 17 times in the highest intensity 308nm UV treatment.

[0175] When the 308nm UV intensity doubled from 0.12 to 0.24, the plant height increased, but further increases to 0.36 μmol / m. 2 There was no increase at / s. Ground fresh weight increased with increasing 308nm UV intensity, but not at 0.24μmol / m 2 / s and 0.36μmol / m 2 The difference between / s and s is not statistically significant.

[0176] Compared to Example 1, the plants were smaller in the control and under the same cultivation conditions, even though they came from the same batch of seeds. However, the treatment effect was still clear and statistically significant.

[0177] In summary, under these conditions, 0.24 μmol / m 2The intensity of 308nm UV light is sufficient to inhibit swelling damage and increase leaf weight and size, plant height, and fresh weight. It is more effective than 0.12μmol / m 2 / s is more efficient.

[0178] Example 3

[0179] In Example 3, a maximum intensity 0.36 μmol / m was determined to be higher than that in previous experiments. 2 The effect of higher 308nm UV light intensity was investigated. Furthermore, whether higher UV intensity caused any damage to the plants was tested. Previous experiments showed that these plants suffered severe swelling damage in an LED spectrum with a spectral density of 14%B 5%G 81%R 13%Fr relative to PAR and a PSS of 0.86, and 0.36 μmol / m 2 308nm UV light strongly inhibited swelling. The set points and timelines for this experiment are shown in Tables 3.1 and 3.2. LED illumination was used, but no artificial sunlight was observed. A control without any UV light was compared with an additional 0.36μmol / m² UV light provided during the illumination period. 2 / s 308nm UV light and higher intensity 1.06μmol / m 2 The processing of 308nm UV light was compared (Table 3.3). The illumination is described in detail below.

[0180] Table 3.1. Setpoints.

[0181]

[0182] Table 3.2 Timeline

[0183]

[0184] Table 3.3 shows the treatments. All treatments also have LED lighting.

[0185]

[0186] The lighting is the same as in Example 2, except for the UV light intensity. All three climate chambers are equipped with LED lighting with a spectrum of 14%B 5%G 81%R 13%Fr relative to PAR and a PSS of 0.86 (see spectrum). Figure 1 No artificial sunlight was used. A custom UV LED lamp (Illumicent, Breda, Netherlands) was used. The 308nm LED was MODEL 308-FL-02-U05 (DOWA Electronics Materials Co., Ltd). The spectrum is shown in... Figure 2The UV light intensity is shown in Table 3.3. UV light is only activated during the illumination period.

[0187] The plants in the control group without UV radiation again showed severe damage due to swelling, as in Examples 1 and 2. They remained stunted, with small, downward-curling leaves, loss of cotyledons and lower leaves, and visible damage at the base of the stem (see [link to example 1]). Figures 17 to 20 In contrast, the plants under both intensities of 308nm UV light were much larger, with larger leaves, thicker stems, and no damage, and still had cotyledons attached.

[0188] At moderate intensity 0.36 μmol / m 2 Under 308nm UV light at / s, the swelling was still visible, but compared to the control without any UV light, the plant was larger, the leaves were larger, and the stems were thicker (see [reference]). Figures 18 to 20 At the highest intensity of 1.06 μmol / m 2 Under 308nm UV light at / s, the plant develops normally, and the leaves look healthy and have a deeper color.

[0189] Compared to the control, at final harvest 31 days after sowing, both 308nm UV treatments significantly increased plant height and the fresh weight of leaves and stems (see [link to relevant documentation]). Figure 21 and Figure 22 ). 1.06 μmol / m 2 The fresh weight of leaves and stems under 308nm UV light was significantly higher than that under 0.36μmol / m² light. 2 / s 308nm UV light, but the plant height is similar.

[0190] In summary, under these conditions, with 0.36 μmol / m 2 Compared to 308nm UV light, 1.06μmol / m 2 The intensity of 308nm UV light further improved plant quality by more effectively suppressing swelling damage. This resulted in almost no leaf damage and higher fresh weight of leaves and stems. No negative effects of high-intensity 308nm UV light on plants were detected.

[0191] Example 3 further demonstrates that 308nm UV light inhibited swelling damage in the indoor-grown sensitive tomato variety "Competition". The first experiment already proved that this wavelength of UV light is significantly more effective in inhibiting swelling than shorter or longer wavelengths within the tested UV range. (Compared to 0.36 μmol / m) 2 Compared to 308nm UV light, it has a higher intensity of 1.06μmol / m. 2308nm UV light at a concentration of / s further improved plant quality by more effectively suppressing swelling damage. This resulted in almost no leaf damage and higher fresh weight of leaves and stems. No negative effects of high-intensity 308nm UV light on plants were detected.

Claims

1. An agricultural system for cultivating Solanaceae plants, the agricultural system comprising a plant cultivation area lacking solar UV radiation, wherein the system comprises a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

2. The system according to claim 1, wherein the UV-LED light source is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of up to 30 nm.

3. The system according to claim 1 or 2, wherein during the UV photocycle, the UV-LED light source is capable of emitting an intensity of 0.1 μmol / m at plant height. 2 / s to 2μmol / m 2 UV radiation per second.

4. The system according to any one of the preceding claims, wherein the system further comprises an artificial non-UV light source, preferably a non-UV-LED light source.

5. The system of claim 4, wherein the spectral composition of the light source results in a photosensitive pigment steady-state (PSS) value of 0.70 to 0.

90.

6. The system according to any one of the preceding claims, wherein the system further comprises one or more components adapted to control temperature, humidity, carbon dioxide (CO2) content, shading, ventilation, irrigation and nutrient distribution.

7. The system according to any one of the preceding claims, wherein the plant cultivation substrate included in the plant cultivation area comprises one or more of soil, mineral wool, vermiculite and perlite.

8. A method for cultivating Solanaceae plants in a controlled plant cultivation environment lacking solar UV radiation, the method comprising subjecting the plants to supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm.

9. The method according to claim 8, wherein the UV-LED light source is a narrow-bandwidth UV-LED light source with a full width at half maximum (FWHM) emission spectrum of up to 30 nm.

10. The method according to claim 8 or 9, wherein the intensity of the UV radiation emitted by the UV-LED light source at the plant height is 0.1 μmol / m. 2 / s to 2μmol / m 2 / s.

11. The method according to any one of the preceding claims, wherein the method further comprises subjecting the plant to supplemental non-UV light emitted by an artificial non-UV light source, preferably supplemental non-UV light emitted by a non-UV-LED light source.

12. The method of claim 11, wherein the spectral composition of the light applied to the Solanaceae plant results in a photochromic pigment steady-state (PSS) value of 0.70 to 0.

90.

13. The method according to any one of the preceding claims, wherein the plant is subjected to supplemental UV radiation for 1 hour to 24 hours per day.

14. The method according to any one of the preceding claims, wherein the plant is cultivated under controlled conditions, said controlled conditions comprising one or more of the following: Temperature range: 14℃ to 30℃; Relative humidity in the range of 40% to 95%; and The carbon dioxide content is in the range of 300 ppm to 2000 ppm.

15. The use of supplemental UV radiation emitted by a UV-LED light source with a peak wavelength in the range of 300 nm to 322 nm to reduce swelling damage in Solanaceae plants cultivated in areas lacking solar UV radiation.

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