13/11 Flowering

yes, somone once told me on this site, that you can do 13 lite 11 darkness and the plants will finish, one week faster, due to more lite
, so isnt that rite?.

Endoe - dioecious means having the male and female reproductive organs in separate individuals. Not all dioecious plants require 12/12 to flower.

As long as there is AT LEAST 12hrs. of darkness the plants will flower. Extending the dark period to 13 or 14 hrs will extend the length of time it takes for flowering to finish but can add 10-15% bulk.

Also note - 12/12 only happens in nature one day a year (unless you are at the equator) - the night lengths change all the way into winter - but we can take advantage of controlling all conditions indoors and 12/12 is the fastest way to finish flowering.

So the important things are:
1) At least 12 hrs uninterupted darkness
2) total dark to light equals 24 hrs (12/12, 13/11, 14/10,)

i have read that increasing the darkness freaks the plants out as they think the 'end is nigh' would be an interesting experiment

newbud said:

i have read that increasing the darkness freaks the plants out as they think the 'end is nigh' would be an interesting experiment

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you mean the "end is near"?
i leave plants in 24 hrs of darkness before i harvest and it does make the plants bulk up in trichromes a bit more but during the growing process i would be a bit skeptical.......
however plants turn hermie because they think that the species is dying out and they feel the need to continue the species. without a mate to produce the other genders sex organs to make seed. therefore the plant makes the sex organs that it doesnt already have........

i prefer the extra hour to be in the dark cycle. try 11/13 instead of 13/11

newbud said:

i have read that increasing the darkness freaks the plants out as they think the 'end is nigh' would be an interesting experiment

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isn't that why some growers will turn the lights off completely for the last week of their grow? the plant apparently produces more THC when this is done

yeah, end is near sounds heaps better!!! stoned and typing dont mix!! lol
i have heard of the last two days before harvest to be total darkness which ups resin. i am going to try this and see how it works. i'm with you kochab!! i try not to fuck with darkness cycles during any stage to prevent seeds sprouting at the end of the grow.
peace[

every strain is different....12/12 is the most general time 4 flowering and is said to produce the most thc but im positive that there are strain that will flower with 13/11 or 14/10 and sum that will flower regardless of light cycle...best thing to do is know your strain and give it as much light as it can handle without pushing it back into veg and you will get the biggest buds possible...sounds logical anyways

Well ive never tried it and i aint gonna lol

bluntedinwarren said:

every strain is different....12/12 is the most general time 4 flowering and is said to produce the most thc but im positive that there are strain that will flower with 13/11 or 14/10 and sum that will flower regardless of light cycle...best thing to do is know your strain and give it as much light as it can handle without pushing it back into veg and you will get the biggest buds possible...sounds logical anyways

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TA DA! The winner!

Thanks for that, bluntedinwarren, you are correct. But I sure got a kick out of all the other answers/suppositions/guesses.

Yeah, each strain is different, and we know 12 hours of dark will make all strains flower. But if we can get by with our plant flowering on less dark, then we can give them more hours of light in a 24 hour day. The reason I say more light is better is because of what Rob Clarke says in Marijuana Botany:

Marijuana Botany said:

Research has shown (Valle et al. 1978 ) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod.

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So if 12 hours of light produces more THC, wouldn't 13 hours be better? As long as the plant will continue maturing under 11 hours of dark, I'd say.

I give mine 11.5 hours dark.

HTH

Everything I have read and experienced says that you can flower with upto 14 hours of light before the plant starts to re-veg. Once you set the timer to 12/12 over the period of the next 2 weeks you can gradually increase that to as much as 14/10 the result should be an improved yield with a slightly longer flowering time.

"The way to grow" is constantly being turned on its head with new things being tried and tested, its these experiments that people do, where all else mock it because it goes against everything they have read that pushes the boundaries further and lets us grow bigger better plants. If it wasn't for these people we would still be growing with mercury vapor lamps all following exactly the same script.

i stick with 12/12

nongreenthumb said:

Everything I have read and experienced says that you can flower with upto 14 hours of light before the plant starts to re-veg. Once you set the timer to 12/12 over the period of the next 2 weeks you can gradually increase that to as much as 14/10 the result should be an improved yield with a slightly longer flowering time.

"The way to grow" is constantly being turned on its head with new things being tried and tested, its these experiments that people do, where all else mock it because it goes against everything they have read that pushes the boundaries further and lets us grow bigger better plants. If it wasn't for these people we would still be growing with mercury vapor lamps all following exactly the same script.

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You can also risk the plant going hermie not to mention getting a lot of stalky tops with not to many crystals on them.
I think if you want more yield as well as quality then its best to just switch from 12/12 after 4 weeks and go back to 24/0 for 2 weeks than back to 12/12.
I am a great believer in balances and 12/12 is perfect for me

I didn't get any hermies when i tried it out, it does work, i've tried it and i've seen it written by jorge cervantes and ed rosenthal.

You can get hermies quite easily by doing 12/12 too believe me.

nongreenthumb said:

Everything I have read and experienced says that you can flower with upto 14 hours of light before the plant starts to re-veg. Once you set the timer to 12/12 over the period of the next 2 weeks you can gradually increase that to as much as 14/10 the result should be an improved yield with a slightly longer flowering time.

"The way to grow" is constantly being turned on its head with new things being tried and tested, its these experiments that people do, where all else mock it because it goes against everything they have read that pushes the boundaries further and lets us grow bigger better plants. If it wasn't for these people we would still be growing with mercury vapor lamps all following exactly the same script.

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Well said, my friend, but now I'm embarassed.

I still use Mercury Vapor, doesn't everyone?

any foot long cola pics????? ..................

No. The original plants in question were sadly stolen by vagrants.

dontmetharound said:

i just sent him some pics of my buds so he could post them up so he doesnt look like a lying asshole. haha. soo whats the final answer

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way to go

12/12 through out

I would not mind trying 13/11

newbud said:

any foot long cola pics????? ..................

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hahah thats what i was looking for did i miss them