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Which wavelengths of light are the most effective in photosynthesis?

Best Answers

Action Spectrum of Photosynthesis follows Absorption Spectrum of Chlorophyll. The absorption spectrum indicates how much of each wavelength chlorophyll will absorb, whereas the action spectrum can tell us which off those wavelengths are most effective in photosynthesis. read more

Photosynthesis requires light between 400 and 700 NM. Spectroradiometer measures light quality. Blue light promotes vegetative growth. If it is the only light, the plant will be shorter, hard and dark in color. R:FR promotes stem elongation. If it is the only light, the plant will be soft and tall. Red and blue light combined promotes flowering. read more