from your own link to a previous discussion shows several articles and links to articles that show proof that green light is of very low yield to plants, the article stated previously comes to the conclusion that different parts of the leaf absorb different lights, and seems to be more of a proof that plants do absorb some green light, it makes sense that the underside of the leaves are better at absorbing green light than those above as that is the light they are most exposed to.
But you seem to have missed the studies suggesting that the use of green light can actually stunt plant growth and the results from those experiment that show that red or blue light produces better yields in several different species.
so the total conclusion is that to make your plants grow really well, use bulbs high in both red and blue spectrum, but if you want them to look pretty as well make sure you include green or they will not reflect any light to please your senses.