The relationship between light and plant
Light environment is one of the important physical and environmental factors which are indispensable for plant growth and development. The effect of spectral range on plant physiology is mainly manifested in:
280 ~ 315nm: minimal impact on morphological and physiological processes
315 ~ 400nm: chlorophyll absorption is less, the photoperiod effect is affected and stem elongation is prevented.
400 ~ 520nm (blue): the proportion of chlorophyll and carotenoid absorption is large, and it has great influence on photosynthesis.
520 ~ 610nm (green): the absorptivity of pigment is not high
610 ~ 720nm (red): chlorophyll absorption rate is low, and it has a significant effect on Photosynthesis and photoperiod effect
720 ~ 1000nm: low absorptivity, stimulating cell extension, affecting flowering and seed germination
> 1000nm: conversion into heat
