A lighting method for regulating plant reproduction and development

A lighting method and plant technology, applied in the fields of botanical equipment and methods, horticultural methods, horticulture, etc., can solve the problem of not being perfect, and achieve the effect of earlier flowering time, shortening of seed collection period, and accelerated transformation.

Active Publication Date: 2021-07-20
FUJIAN SANAN SINO SCI PHOTOBIOTECH CO LTD
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  • Abstract
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Problems solved by technology

[0006] To sum up, in the prior art, there is already a lighting strobe method to improve the production quality of corresponding plants, for example, a designed lighting device and a stroboscopic method are used to dynamically provide a stroboscopic lighting scheme suitable for the production quality of the corresponding plant, It is mainly aimed at the improvement of adaptive adjustment methods and devices; and for example, in the large number of references cited above, it is discussed that different frequencies, different duty ratios, and different intensities of light have different effects on the growth effects of different types of plants, but Most of the above-mentioned documents describe how to increase the yield and the content of plant trace elements, but there is no perfect solution on how to shorten the planting and breeding cycle through light control

Method used

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  • A lighting method for regulating plant reproduction and development
  • A lighting method for regulating plant reproduction and development

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) Seedling period

[0021] Sow the lettuce seeds in a sponge soaked in deionized water, then place the sponge in a constant temperature germination box in a dark environment, set the temperature at 20°C, and the relative humidity at 90%, and take it out after 24 hours of germination. Put the germinated lettuce on the seedling raising rack to continue cultivating. The seedling raising rack is 28cm high, and LED lamp 1 is used for continuous irradiation. The layer light intensity PPFD is 150μmol / m2 / s, the light cycle is 9 hours a day, the temperature is controlled at 20-22°C, and the relative humidity is 80%. CO2 concentration 1000ppm. The nutrient solution is irrigated every 2 days during the seedling raising period, the EC value of the nutrient solution is 0.8-1.2ms / cm, and the pH is 6.0-7.0.

[0022] (2) Cultivation period

[0023] 20 days after sowing, the lettuce seedlings with good growth are planted on the hydroponic cultivation frame, and the cultivation fram...

Embodiment 2

[0034] (1) Seedling period

[0035]Soak the spinach seeds in warm water at 55°C for 2 hours, then soak the seeds at room temperature for 22 hours, sow the seeds in a sponge soaked in deionized water, put them in a constant temperature germination box, in a dark environment, set the temperature at 15°C, and the relative humidity at 90 %, take out and sow in a sponge soaked with deionized water after most of the seeds have sprouted, take them out after 120 hours of germination, and place them on a seedling raising frame to continue cultivating. The spectral characteristics of lamp 1 are: the ratio of the number of photons at 600-700nm to the number of photons at 400-500nm is 2.0, the light intensity PPFD of the leaf canopy is 200μmol / m2 / s, the light cycle is 12 hours a day, and the temperature is controlled at 18-20°C. 80% relative humidity. CO2 concentration 1000ppm. Irrigate the nutrient solution every 2 days during the seedling raising period, the EC value of the nutrient s...

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Abstract

The invention relates to the technical field of plant lighting, in particular to a lighting method for regulating plant reproduction and development. The seeds are accelerated to germinate, and the germinated vegetable seedlings are continuously illuminated by a first LED plant light to control the PPFD on the leaves of the vegetable seedlings. Amount of light, control of temperature and relative humidity, control of CO 2 Concentration: Plant the seedlings with good growth potential, use the second LED plant light to intermittently illuminate the seedlings, control the duty cycle of the intermittent light and the duration of light in a gap light cycle, control the PPFD on the vegetable leaves, and control the amount of light , control temperature and relative humidity, control CO 2 concentration. The invention effectively promotes the transformation of vegetables from vegetative growth to reproductive growth by regulating different light environment parameters and light modes in the seedling raising stage and cultivation stage in the leafy vegetable breeding process, reduces flowering time by more than one-fifth, and greatly shortens the seed collection cycle.

Description

technical field [0001] The invention relates to the technical field of plant lighting, in particular to a light environment control method for regulating the early flowering of plants and shortening the planting period. Background technique [0002] Reproductive growth refers to the process that after a plant grows to a certain period, it begins to differentiate flower buds, then flower and bear fruit, and form seeds. The artificial regulation of this life process is of great significance, especially in the field of agricultural production, such as vegetable and flower cultivation, crop breeding, people can control the growth cycle of crops, speed up the formation of fruits and seeds or control the time to market, resulting in huge economic benefit. [0003] The process of plant growth and development is not only controlled by its own genes, but also affected by light, temperature, root nutrients and gas environment. Plants have the ability to accurately sense environmenta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/04
CPCA01G7/045Y02P60/14
Inventor 李阳张森马健罗梅秀查萍
Owner FUJIAN SANAN SINO SCI PHOTOBIOTECH CO LTD
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