Quote Originally Posted by oldmac
Photoperiod and amount of dark period is a matter of what works best for an individual, the strain they are working with and enviromental considerations.
I was thinking that the other day, no matter what light period you grow on your plants will all act differently, some for the better and some for the worse. Like growing hybrids, some phenos come out better than others in a particular strain. So saying root mass grew better on one plant to another like that is hard to relate considering each cutting is going to respond differently to root growth size.

Another thing I was thinking of is, they say put cuttings under fluorescent 24/0 for first 10-14 days to establish better rots (Jorge Cervantes recommends that also in his DVD I think) . If that is the case, then that just blew away the theory that the light cycle at 18/6 is better than 24/0.