What color of light is best for the growth of mongo plants? red, bule, clear or green? why?

Visible (';white';) light is composed of all the colors of the spectrum (rainbow). Chlorophyll in a green plant absorbs and uses some of these colors more than others. A spectrophotometer is an instrument that measures what parts of the spectrum is being used and which are rejected (reflected).


Accordingly, for a green plant, like mongo, the best light would be ';white or clear'; like sunlight or an incandescent light bulb. To a lesser extent,blue %26amp; red lights would work well also.


The plant would struggle with orange %26amp; yellow lights and would die under a green light source.