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It should at least add up to circa diem... This experiment is pointless.
Indoor growing is not about mimicking nature/outdoor. We'd all be starving... and adjusting the schedule daily to reduce the photoperiod by minutes. Growing under high intensity artificial light is also not easy per se, especially when you grow in soil. Reducing the light period with an hour will make it a little easier on plants in suboptimal conditions. So I'm sure 11/13 can seem to work better for some. It's even easier when you grow under T5 or a 315w cmh. First thing a hps grower should do when a plant has problems is raise the light till the real problem/bottleneck is identified...
The highest yield however comes from running the light as long as possible per day. In veg (yield per time) and flower (yield per space/flower). This has been tested for cannabis by philips in cooperation with several botanists and photobiologists many years ago for the guy who created the 600w hps ballast thereby introducing hps to our homes. the reason we run 12/12 is simply because it's the maximum duration of light period in which virtually every strain gets enough dark period (per circa diem... Circadian rythm...) to flower. If however you have a strain that will flower as fast on 13/11, running 13/11 is better than 12/12 or 11/13.
Ever wondered why vegging cannabis is so easy...
Indoor growing is not about mimicking nature/outdoor. We'd all be starving... and adjusting the schedule daily to reduce the photoperiod by minutes. Growing under high intensity artificial light is also not easy per se, especially when you grow in soil. Reducing the light period with an hour will make it a little easier on plants in suboptimal conditions. So I'm sure 11/13 can seem to work better for some. It's even easier when you grow under T5 or a 315w cmh. First thing a hps grower should do when a plant has problems is raise the light till the real problem/bottleneck is identified...
The highest yield however comes from running the light as long as possible per day. In veg (yield per time) and flower (yield per space/flower). This has been tested for cannabis by philips in cooperation with several botanists and photobiologists many years ago for the guy who created the 600w hps ballast thereby introducing hps to our homes. the reason we run 12/12 is simply because it's the maximum duration of light period in which virtually every strain gets enough dark period (per circa diem... Circadian rythm...) to flower. If however you have a strain that will flower as fast on 13/11, running 13/11 is better than 12/12 or 11/13.
Ever wondered why vegging cannabis is so easy...