"Hours of uninterrupted Darkness" is the accepted standard for proper photoperiodic triggering, But I do think that there are "DAY" light DNA sequences. I tend to think of them as sequences that are used at night, but they are shortened versions of them with light driven start/stop receptor sequence sites.

Take care, Sal.
salmayo Reviewed by salmayo on . 32on/16off and 24on/24off hey all, as always a pleasure :) Just out of interest, I've looked around and can't find damn near anything on this.. however.. Has anyone here tried the light schedule in the subject title? ie, 32 on and 16 off 4 veg, and 24 on and 24 off 4 flower Would it double grow time, but twice as big.. do nothing.. or just generally fcuk with the poor girls and cause hermies?? Thinking about trying it with a few seeds and clones I have getting started atm. Worth a try you reckon? Rating: 5