LED plant growth lamp wavelength and effect

- May 20, 2019-

  1. The color temperature and lumen of the plant lamp are seen from the human eye, while the photosynthesis of plants on light is independent of the color temperature and lumen.

  2. Effects of spectral range on plant physiology: 280 ~ 315nm -- minimal effects on morphological and physiological processes: 315 ~ 400nm -- little chlorophyll absorption; photoperiod effect is affected; stem elongation is prevented: 400 ~ 520nm (blue) -- the proportion of chlorophyll and carotenoid absorption is the largest. Influence on photosynthesis biggest 520 ~ 610 nm (green) - pigment absorption rate is not high of 610 ~ 720 nm (red) - chlorophyll absorption rate is low, have significant effects on photosynthesis and light cycle effect of 720 ~ 1000 nm - absorption rate is low, stimulate cell elongation, influencing flowering and seed germination > 1000 nm converted into heat, from the above data, the effects of different wavelengths of light on plant photosynthesis is different, Plants need light for photosynthesis, with wavelengths ranging from 400 to 720nm. Light at 400-520nm (blue) and 610-720nm (red) contributed the most to photosynthesis.Light at 520 ~ 610nm (green) is absorbed very little by plant pigments.