Why Red Light in Plant Cultivation

     red light in greenhouse

Among visible light, the most absorbed by green plants are red-orange light (wavelength 600-700 nm) and blue-violet light (wavelength 400-500 nm), of which red light is an essential light quality for normal crop growth and tops the number of biological requirements for various monochromatic light qualities.

red light on plants

This is due to the fact that plants are sensitive to the red color of the spectrum, and this sensitivity stems from the fact that plants have red light receptors. The receptor for light sensitivity is a blue-green pigment called a photosensitive pigment present in plant cells. You can think of a photosensitive pigment as an eye that can only perceive red light.

 

Red light affects plants in a variety of ways. Plants that grow under sufficient red light are usually large and generally tall, with many branches and trunks. If the photoreceptors receive a lot of natural red light, such as in the summer when natural red light is abundant, they produce more meta-topolin, a hormone that prevents chlorophyll in the plant from being broken down and keeps it green in the spring and summer. This is beneficial for plants because it is at this time that they need chlorophyll to convert energy from the sun into sugar, which makes them grow taller.

How Red Light effect plant growth

 

Red light drives photosynthesis through photosynthetic pigment absorption; red light promotes stem elongation and carbohydrate synthesis, which facilitates the synthesis of VC and sugar in fruits and vegetables.

 

How Red Light boost flowers?

 

The longer wavelength of red light mainly powers plant photosynthesis, which facilitates photosynthesis and chlorophyll formation, and facilitates the growth of stems and promotes plant flowering.

 

Conclusion

 

To conclude, red light has the effect of promoting chlorophyll formation, carbohydrate accumulation as well as absorption and utilization, which helps plants to flower and bear fruit.

photosynthesis

 

Author: Ciki

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