I have just moved plants up and down and lights up and down to 65k lux at canopy tops. move light tilt and flowers to get the most buds to top.
Thats around 940 ppfd acording to my uni-t/ plus conversion method which is nearing the limit but as stated by fellow members genetics, enviroment play a big part in plant behaviour. This cheese photo clone got a max of 870 ppfd or 60k lux and 24 degrees and in its last week or two developed a nanna or two or three but finished up v good. Which i find interesting with feminised photoperiods as i mainly grow autos atm and i flog my autos with around 750 ppfd and havn't had any herms in 3 years weird?
These two autos were getting roughly 725 ppfd at the canopy and on the big girl to the left you can see a bit of leaf tacoing so i know they didn't need any more light on the top most cola on mrs big she did staet to form an imature green seed pod just before chop but it was around 9 inches from the fixture. I think a little to much light is better than not enough. Also these autos went 14 weeks till i harvested them.
750 is low to hit the light saturation point but I have seen two grows that maxed out at 500 because bother growers hadn't watered their plants very well and the soil was hygrophobic.
