I would definitely trust what latewood says over me. he obviously has a lot more experience. I only have opinions from my "somewhat" limited experience.

I guess my thinking is that more light is like a hydroponic system. Your putting the plant in an unnatural state, where it is able to uptake far more dissolved oxygen, sits in a constant nutrient state, and the environment is very carefully monitored. This however, does substantially increase growth compared to a normal soil grow. So, to a degree, wouldn't MJ possibly be able to take advantage of abnormally long amounts of light, the same as it is able to take advantage of more oxygen and nutrients with hydro?

Finally, I will stop with saying that my plants, in flowering mind you, grow more during the night then the day. So hey, that backsup latewoods statement IMO.
Racerx Reviewed by Racerx on . roots and lighting question. Hi, my friend currently has a hydro setup that is on 18/6. From what I have read roots spend most of their time "searching" or growing during the dark hours correct? It is also well understood that MJ grows the best under 24hr or similar lengths of time. My question is; if this is the case, woulndn't it make sense to leave the light in the 18/6 cycle so that the roots still have 6 hours to grow during veg rather than a constant light cycle? Wouldn't this especially be the case for Rating: 5