GREEN SPECTRUM. Interesting new research we should all consider.

Hello everyone,

Now that I have become more comfortable posting here I would like to share some of the research I have come across with everyone.

We have all been told green light will not wake up our plants. Why? Well 95% of research on spectrum is conducted on chlorophyll A&B since they use the energy we give to them. Since they use most of their light from the blue and red bands of PAR the green is all but invisible to them. Infact they rebound the green light which is why plants look green to the human eye.

Now this is all well and true when it comes to CHLOROPHYLL, however plants have a secondary light absorption system and the plants carotenoids DO absorb green spectrum, up to 70% of it infact. Carotonoids can even help make your plants much stronger and healthier when taken care of.

Here is the link of the article I have read. I think everyone should take the time to read it as well.

http://www.heliospectra.com/sites/w...ents/what_light_do_plants_need_2012-10-05.pdf


Any thoughts and opinions welcome.

Happy Growing

So it seems these green lights that wont wake up plants really do interrupt their sleep cycle.

Hardly a persuasive article in my opinion, its not a peer reviewed article, no written by a professional and displays clear bias in their conclusion by suggesting they have a product which satisfy green light requirements for growth. Plus, it lacks considerations regarding light spectra output of commonly available lighting systems. As they one chart shows, blue and red are still the more absorbed spectrum, regardless of the fact that there may be green absorbance. Fact of the matter is, green light is still the least used, and commercially available lights, like hps, and mh only produce red and blue in any significant amount. They only way this would ever be applicable is for people growing with LED's and can choose colour combinations, but even then, who is going to give up wattage to provide energy to a green absorbing spectrum this is not as efficient. It just doesn't make sense, so I don't think people are going to be busting out the green lights any time soon.

Well im not selling anyone on the green spectrum... lol, you guys seem hostile ffs. The point is it DOES effect the plant on some level, there are OTHER articles and research confirming this and can disrupt their sleep cycle. never said run out and buy green lights lol. This is all a process of educating ourselves and breaking any old school thought. Clearly doesnt go down to well sometimes.... lol

Sorry, didn't mean to sound harsh. I agree it is an interesting point, that the long held taboo regarding green light being absolutely useless and being avoided, is perhaps quite wrong. However, I think the moral of the story is that yes, it is a spectrum with corresponding photosynthetic pigments, but being the least efficient range of colour absorption still means that there isn't a whole lot of practical implications.
Although, when I think about it, there may be one benefit, in that if your red and blue photosynthetic pigments have reached their light saturation point, and you aim to increase your net photosynthesis, then the unused green pigments could in theory add to the photosynthesis because it is an additive effect. Maybe if someone soaked their plants under both a MH and HPS (for both red and blue spectra output), observed plant growth, then added in some green, it is possible there may be a slight net increase in growth. Likely though no results would be seen until after the other pigments have reached saturation though, because they are the most efficient producers of energy.

Something to think about anyways

Ok thanks lol, while Im not new to being a hobbyist I am new to the forums so I didn't realize this was a dated topic. Hopefully it helped someone out though.