muddy waters
Active member
'does 12/12 work?' seriously?
'does 12/12 work?' seriously?
wow it's pretty strange to read 10k's post at the beginning of this thread... ...obviously growing 12/12 from seed works. obviously. is it ideal? depends. but how would herb grow in a place like colombia if only 18-6 could make 20 foot tall herb?
i have used this method and my results were enough to convince me it has definite merit. cannabis does not need any special lighting hours to complete its basic vegetative growth. extraneous vegging through photoperiod manipulation creates larger plants but with greater footprint of energy, time, and space. numbers that haven't been crunched to my knowledge would be a necessity for anyone to really make a claim, and no i haven't crunched any or even compared side by side under controlled conditions.
having said that, the plant's specific genotype will determine how quickly it flowers under the constant 12/12 regime. in my specific experience, an afghani-dom hybrid (partly sensi's shanti ii) grew to 8-9" above soil, branchless, and yielded maybe 1/2 oz. or slightly less, finishing about 10 1/2 weeks from sprout. a hybrid landrace sativa x blue mystic on the other hand grew to nearly 3 times this height including multiple branches forming colas, and finished nearly a full month after the shanti ii despite sprouting around the same time. here's a progression, sativa x mystic hybrid on the left, shanti ii on the right.
in my opinion, the most efficient possible method of harvesting cannabis under lights, and accounting for total energy and time, would be a high number, staggered harvest sog under 12/12 or even 11/13 using branchy hybrids. (the staggered harvest being a more efficient use of space, another limited element.) from seed or clone, it makes little difference--just that clones require a mother or vegetating plant being maintained or growing wildly somewhere, and seeds don't.
but that's just my non scientifically tested opinion.
anyway a 12/12 growers forum definitely gets my vote. it would have a sticky with specific strains' total flowering times and yields, which would prove invaluable to even those who decide to stick with extraneous vegging before flower. and the forum would also be a good place to discuss the role that size of container and nute availability play on specific strains' ultimate size and yield. ie, and without having done any experiments, talking out my ass, i'm fairly certain a plant grown 12/12 from seed in a garbage can under a 600w HPS will end up "vegging" longer and becoming much larger than the same plant grown 12/12 from seed in 2 liters under fluoros. anyway, that'd be a good thread.
good discussion.
'does 12/12 work?' seriously?
wow it's pretty strange to read 10k's post at the beginning of this thread... ...obviously growing 12/12 from seed works. obviously. is it ideal? depends. but how would herb grow in a place like colombia if only 18-6 could make 20 foot tall herb?
i have used this method and my results were enough to convince me it has definite merit. cannabis does not need any special lighting hours to complete its basic vegetative growth. extraneous vegging through photoperiod manipulation creates larger plants but with greater footprint of energy, time, and space. numbers that haven't been crunched to my knowledge would be a necessity for anyone to really make a claim, and no i haven't crunched any or even compared side by side under controlled conditions.
having said that, the plant's specific genotype will determine how quickly it flowers under the constant 12/12 regime. in my specific experience, an afghani-dom hybrid (partly sensi's shanti ii) grew to 8-9" above soil, branchless, and yielded maybe 1/2 oz. or slightly less, finishing about 10 1/2 weeks from sprout. a hybrid landrace sativa x blue mystic on the other hand grew to nearly 3 times this height including multiple branches forming colas, and finished nearly a full month after the shanti ii despite sprouting around the same time. here's a progression, sativa x mystic hybrid on the left, shanti ii on the right.
in my opinion, the most efficient possible method of harvesting cannabis under lights, and accounting for total energy and time, would be a high number, staggered harvest sog under 12/12 or even 11/13 using branchy hybrids. (the staggered harvest being a more efficient use of space, another limited element.) from seed or clone, it makes little difference--just that clones require a mother or vegetating plant being maintained or growing wildly somewhere, and seeds don't.
but that's just my non scientifically tested opinion.
anyway a 12/12 growers forum definitely gets my vote. it would have a sticky with specific strains' total flowering times and yields, which would prove invaluable to even those who decide to stick with extraneous vegging before flower. and the forum would also be a good place to discuss the role that size of container and nute availability play on specific strains' ultimate size and yield. ie, and without having done any experiments, talking out my ass, i'm fairly certain a plant grown 12/12 from seed in a garbage can under a 600w HPS will end up "vegging" longer and becoming much larger than the same plant grown 12/12 from seed in 2 liters under fluoros. anyway, that'd be a good thread.
good discussion.
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