280 ~ 315nm——> Minimal effect on morphology and physiological process

      315 ~ 400nm ——> less chlorophyll absorption, affecting the photoperiod effect and preventing stem elongation

      400 ~ 520nm (blue) -> The absorption ratio of chlorophyll and carotenoids is the largest, and the impact on photosynthesis is the greatest

       520 ~ 610nm (green) -> the absorption rate of the pigment is not high

       610 ~ 720nm (red) -> low absorption rate of chlorophyll, has a significant impact on photosynthesis and photoperiod effect

      720 ~ 1000nm ——> low absorption rate, stimulating cell extension, affecting flowering and seed germination

       ＞1000nm ——> Converted into heat

       From the above data, different wavelengths of light have different effects on plant photosynthesis. The light required for plant photosynthesis has a wavelength of about 400 ~ 720nm. Light from 400 to 520nm (blue) and 610 to 720nm (red) contribute the most to photosynthesis. 520 ~ 610nm (green) light, the rate of absorption by plant pigments is very low.