Light affects plant growth mainly through photosynthesis and photomorphogenesis

Photosynthesis is a process in which plants absorb light energy through chlorophyll under sunlight, and in plants, carbon dioxide and water are synthesized into carbohydrates to release oxygen. At the same time, light is also the main factor affecting the formation of chlorophyll. If the light is too weak, it is not conducive to the biosynthesis of chlorophyll. Therefore, if the crop cultivation density is too high, the upper part is too shaded, the decomposition rate of chlorophyll in the lower leaves of the plant is faster than the synthesis rate, and the leaf color turns yellow.

The effect of light on photosynthesis: Photosynthesis is a photobiochemistry, so photosynthesis increases or decreases as the effect of the reaction progresses. Longer time, the increase of light and moon, more and more light and moon, photosynthesis occurs, when the light flux of the leaves is similar, the amount of carbon dioxide per hour is shown, and the amount of carbon dioxide per minute is shown, drop by drop, drop by drop The strong light is called the light compensation point. point to allow the plant to grow normally. When the light intensity is supplemented, the light pulse becomes the time when the light effect is increased, resulting in the growth of organic plants. The point at which the light intensity glows when photosynthesis begins. The light point of a plant is related to the same species, leaf thickness and leaf element expansion. Strong light imitation —— ——Light suppression When the light energy is insufficient, the photosynthetic flux will be reduced, and the phenomenon is called photoinhibition of photosynthesis.

Seedling development is controlled by light

Light has an inhibitory effect on stem elongation (experiments have shown that the growth rate of corn seedlings grown under light is reduced by about 309% compared with the dark treatment, and the content of free auxin is also reduced by about 40%, but the content of bound auxin increases, Because the blue-violet light has the effect of inhibiting growth, in agricultural production, it is often caused by lodging due to over-dense plant populations, shading between plants, high auxin content in stem cells, rapid growth, slender stems, and underdeveloped mechanical tissues. Yield reduction. Therefore, it is necessary to reasonably densely plant, strengthen water and fertilizer management, so that the interplants are ventilated and light, and the stems are thick and do not lodging)

Light has a great influence on the formation of flowers. On the basis of the completion of photoperiod induction of plants, after the differentiation of flowers, the longer the natural light time, the greater the light intensity, the more organic matter is formed, and the more powerful the flower formation is.

The phototaxis of the stem, generally the aerial part of the plant grows in the direction of the light, which is called phototaxis (light has a guiding role in maintaining the plant shape of the plant, which is why it is necessary to frequently turn the direction of the plant).

Summary: Photosynthesis is the conversion of light energy into chemical energy, and in the process of photomorphogenesis, light is only used as a signal to excite receptors, promoting a series of reactions in cells, and finally manifested as changes in morphological structure for better Adapt to the environment. If you want to know more plant lamp products or consultation, you can contact the plant lamp manufacturer Hishine Group at any time