The influence of spectral range on plant physiology

- Mar 29, 2018 -

280 ~ 315nm –> This wavelength is already a UV light, and it has a direct suppressive growth function for various types of animals, plants and even bacteria, with little effect on morphology and physiological processes.

315 ~ 400nm ––> This type of light wave is also far-ultraviolet light, although there is no UV damage to the plant, it has no direct effect on plant growth, chlorophyll absorption is low, affect the photoperiodic effect, and prevent stem elongation.

400 ~ 520nm (blue) -> such wavelengths can be directly at the root and stem parts of the plant development, for the largest proportion of chlorophyll and carotenoid absorption, the greatest impact on photosynthesis.

520 ~ 610nm (green) -> green plant rejection pushing, green pigment absorption rate is not high.

The absorption rate of chlorophyll in plants is not high from 610 to 720 nm (red)–>only the wavelength has a significant effect on photosynthesis and plant growth rate.

720 ~ 1000nm –> These wavelengths are pan-infrared wavelengths, low absorption rate for plants, can directly stimulate cell elongation, affect flowering and seed germination.

>1000nm ––> Already near the laser wavelength has been converted to heat.

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