Why do plants grow better in red and blue light?
Well I remember that my botany professor told us in passing that it is theorize–there is not a lot of empirical evidence for this– that millions of years ago, there were some other organism that absorbed green light first. They may have floated up to the surface where they could get light easier. Competition and evolution led to other photosynthetic organism having to absorb lights from the opposite spectrum. Well I supposed one evident that there ARE organism that absorbs green light is the red algae which has phycobilin which absorbs lights including green. There’s also cyanobacteria and “halebacterium”. Actually plants–and other photosynthetic organism like algae and certain bacteria–have more than one type of chlorophyll which absorbs lights at different wavelengths. The chlorophyll that are most known is chlorophyll a which has a green pigment. It absorbs light best at either 680 or 700 in plants–indicated by the name of the photosystems P680 and P700 in which the “P” stands
