I have been looking into why the marijuana plant produces THC. The things I came up with poking around so far are to protect it against predation(pests), pathogens(germs), and UV rays from THC's very high UV absorption qualities.. Also it is stated another function of the THC glands is to catch pollen. Marijuana seems to be a very adaptive plant, and does what it must to survive in its surroundings. I can't think of any way to safely increase germs & pests (and who would want to) and I don't know of a way to make it want to adapt to lower pollen surroundings, however you can give it more UV rays. Does anyone think this might possibly work in any way? Will plants be able to tollerate a UV light during flower, or will any UV emitting light in the area whatsoever kill it? I was thinking this could serve multiple purposes even, has UV light helps destroy odor in air, kill pests, reduce germs, etc.. But I was also thinking that if THC production was in part to protect the plant from ultraviolet rays, that possibly giving it some more might help? Please share your thoughts, or other ideas regarding increasing a plants THC production via manipulating its environment, rather than relying purely on genetics (though I agree that genetics is the main determining factor). I can't bring myself to believe that there's only genetics involved, however. Nor that the only things other than genetics regarding THC production is the overall plant health. I believe the ammount range is determined by genetics, but the actual ammount varies regarding other factors. Please share your thoughts, or other ideas regarding increasing a plants THC production via manipulating its environment, rather than relying purely on genetics (though I agree that genetics is the main determining factor).