Green flowers want daylight due to the fact they reap power thru photosynthesis. Photosynthesis is performed via way of means of flowers thru chlorophyll. There are essential spectral levels that chlorophyll can immediately soak up. One is the pink mild component with a wavelength of 640~660nm, and the alternative is the wavelength. The blue-violet mild a part of 430~450nm. In addition, lutein and carotene in flowers also can soak up mild power after which switch it to chlorophyll for photosynthesis. The absorption spectrum of lutein and carotene is set 400~500nm, that's barely wider than that immediately absorbed via way of means of chlorophyll. Blue-violet mild variety, so the overall spectrum variety that flowers can use is 640~660nm+400~500nm. As lengthy because the spectrum of the fill mild used overlaps with the above variety, it is able to be used for photosynthesis of flowers.

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