Illumination method for regulating reproductive development of plants

A lighting method and plant technology, applied in botany equipment and methods, gardening methods, agricultural machinery and equipment, etc., can solve problems such as not being perfect, and achieve the effects of accelerating transformation, promoting reproductive growth transformation, and shortening the seed collection cycle

Active Publication Date: 2019-11-26
FUJIAN SANAN SINO SCI PHOTOBIOTECH CO LTD
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  • Abstract
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AI Technical Summary

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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  • Illumination method for regulating reproductive development of plants

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Embodiment 1

[0020] (1) Seedling period

[0021] The lettuce seeds were sown in a sponge soaked in deionized water, and then the sponge was placed in a constant temperature germination box in a dark environment with a set temperature of 20°C and a relative humidity of 90%, and took 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 the 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 excellent growth were planted on the hydroponic cultivation frame, ...

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 an illumination method for regulating the reproductive development of plants. Seeds are subjected to germination acceleration, germinated vegetable seedlings are continuously illuminated by first LED plant lamps, and the PPFD on the leaves of the vegetable seedlings, the illumination quantity, the temperature, the relative humidity and the CO2 concentration are controlled; the seedlings with excellent growth vigor are planted in a field and intermittently illuminated by second LED plant lamps, and the duty cycle of intermittent light and an illumination duration within a gap illumination cycle, the PPFD on the vegetable leaves, the illumination quantity, the temperature, the relative humidity and the CO2 concentration are controlled. According to the method, by regulating different light environment parameters and illumination modes in the seedling raising period and the cultivation period in the leafy vegetable breeding process, the conversion of vegetables from vegetative growth to reproductive growth is effectively promoted, the flowering time is shortened by one fifth or above, and the seed collection cycle is greatly shortened.

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 cycle. 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 environmental...

Claims

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Application Information

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Patent Type & Authority Applications(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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