The effect of 280nm ~ 315nm on morphology and physiological process is very small
The absorption of chlorophyll from 315 nm to 420nm is less, which affects the photoperiod effect and stops the stem elongation
The absorption ratio of chlorophyll and carotenoid is the largest in 420 nm to 500 nm (blue), which has the greatest influence on photosynthesis
The absorbance of pigment from 500 nm to 620 nm is not high
620nm ~ 750nm (red) chlorophyll absorption rate is "high", which has a significant impact on Photosynthesis and photoperiod effect
The absorption rate of 750nm ~ 1000nm is low, which can stimulate cell elongation and affect flowering and seed germination
>1000nm converted to heat
