10-14 light in final 3 weeks instead of 12-12 Advice please

12-1 taught in 1st year college horticulture, standard in Agri biz since the 19th century. Cannabis is short day long night flowering plant, 12-12 makes no sense unless you own power company or you produce light bulbs. 18-6 you would need 2 suns to replicate outdoors? That makes no sense. In the US we spend 5 billion annually in power consumption, if 12-1 was used it would be 1.25 billion, with added production. Photo periodic control left out of grow books making no sense whatsoever. If Agri business went by Rosenthal or Cervantes, a hot house tomato would cost $100, your mothers day bouquet 2K. These schedule are laughed at by professionals. Those 18-6 12-12 schedules artificially inflated the price of cannabis, which then justified the high cost of seeds. It paid off the status quo, in the US alone 3.75 billion, and lit everyone up like a Xmas tree for law enforcement. This is how the cannabis industry survived while many went to prison, Those phony schedules enriched the status quo and made many in the industry multi millionaires, and made you a beacon for law enforcement.

Evil Buddies said:

A mate of mine that grows tells me that he does 10 hours of light and 14 hours of dark in the last 3 weeks of flowering. I'm thinking of doing the same only to cut down on the electric bill. Please could someone tell me the pros and cons of doing this.

E.G. If i switch to 10-14 will it take longer for my plants to be done as they are losing 2hrs of light each day would this make them grow more slowly.

Will it make the plants finish quicker as the plant will think that summer is reaching an end and matures faster b4 the autumn cold

Has anyone done or does this and notices any change please let me know

Evil

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Any light cycle under 13 hours of light a day will make this plant flower.
-12/12 is better for hybrids. It allows them to grow to their fullest. 13/10 is likely to increase flowering time for hybrids; with a larger yield of course.
-10/14 is used primarily for 100% sativa strains in the last 3 weeks esp in unworked landraces to prevent "sativa reflowering".

If you are using 10/14 with hybrids from the start or 3 weeks before harvest; your buds will most likely mature faster than normal at the expense to yield.

completely wrong cannabis is short day long night flowering plant 12-12 is neither and certainly 13-10, by the way the day has 24 hours this is 23, so I guess you meant 13-11, completely wrong, and will make your flowering time much longer if at all? Cannabis does not flower until 11-13 or less, we use 10-14, which tells plant top flower immediately, 12-12 leaves it on the fence, 13-11 makes even less sense.

i did the same but dropped to 10 hours an 30 an mine seemed to finsh faster

I no its an old tread but 10/14 is way better that 12/12 finish faster bigger yield cannabis is a short day plant 12/12 is neither dont make sence for all ye saying diffrent ye are wrong check out the 12/1 army of cannabis growers on face book for proof

duggie2013 said:

I no its an old tread but 10/14 is way better that 12/12 finish faster bigger yield cannabis is a short day plant 12/12 is neither dont make sence for all ye saying diffrent ye are wrong check out the 12/1 army of cannabis growers on face book for proof

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yeah! check facebook for proof....


Wow, what an ignorant comment.... facebook is opinions, not facts....


12/12 bottom line

The 10/14 light cycle is a common approach with those wanting to speed up their harvest date. I used it recently to get my plants to flower more quickly since I had to unexpectedly leave town for 3 weeks of job training. I would say the plants finished about 7-10 days sooner when I did a 10/14 light cycle compared to the previous time (same strain).

If you never heard of using a 10/14 cycle, for speeding up harvest day, then now you have.

grow plenty said:

at minus 2 hrs of presious life giving, bud growing 'light' per day, youll be looking at approx. 18% less product. so my guess is...bad idea!

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"Precious", You'll.

710in780 said:

"Precious", You'll.

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Did you really bump a post from 2011 to correct grammar of someone who hasn’t logged in since 2019?? lol wtf..

J232 said:

Did you really bump a post from 2011 to correct grammar?? lol wtf..

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Lmao i deleted my response on this thread. I didn’t realize he opened this from that long ago.

Wow!

Well now that this old thread has been bumped I'll state that I sometimes run 10/14 in flower when I'm growing a long flowering sativa. It helps to get them to flower sooner and finish faster.