Running hps 13/11 to increase yield

I just read this some else on another forum and the guy switches to 12/12 for the late 2 wks for ripening up. It kinda makes sense all ur plants would get an extra hr of light each day for at least 2 months. Light time= bud growth correct? So more light on time them more bud growth, in theory. Someone correct me please.

nope.

SoOLED said:

nope.

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Please explain. I have never done this and don't have any evidence it works I'm just wanting to hear what everyone thinks

plants don't sleep, and process the same way all living things do. just different energy sources.

from liver regeneration at night, to using sugars plants make under light to build with at night. its all the same.

if I had to add or remove and hour: I would remove and go 11 on 13 off.

There is a lot of good points on different light schedules than the normal 12/12. Some do a break in between the light period due to midday depression as well.

I never did the research, experimentation or am familiar with the study myself so I have no comment, but personally I wouldn't discount trying different light schedules. Good luck, experiment away and find shit that works for you.

Anon Emaus said:

There is a lot of good points on different light schedules than the normal 12/12. Some do a break in between the light period due to midday depression as well.

I never did the research, experimentation or am familiar with the study myself so I have no comment, but personally I wouldn't discount trying different light schedules. Good luck, experiment away and find shit that works for you.

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No experimenting here bro just like reading about different growing techniques. I'm always trying to learn my man. That's the name of the game

13/11 is better if there are no signs of reveg. Daily Light Integral is higher. Yield is better.

11/13 will yield less than 12/12.

churchhaze said:

13/11 is better if there are no signs of reveg. Daily Light Integral is higher. Yield is better.

11/13 will yield less than 12/12.

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I would argue that such isnt true. My last two runs i ran 10/14 and actually yielded slightly better than my 12/12 runs prior (yes, same strain exact same conditions.

The yield wasnt much better but was certainly better. Other factors may havenplayed a part. There is no way to know for sure.

But one thing is certain. I saved a whack of money on electricity and did not lose yield.

There are guys on the site running 9/15 for the same reason and even down to 6/18 and yielded as well or slightly better than before.

Sometimes less is more.

Gquebed said:

I would argue that such isnt true. My last two runs i ran 10/14 and actually yielded slightly better than my 12/12 runs prior (yes, same strain exact same conditions.

The yield wasnt much better but was certainly better. Other factors may havenplayed a part. There is no way to know for sure.

But one thing is certain. I saved a whack of money on electricity and did not lose yield.

There are guys on the site running 9/15 for the same reason and even down to 6/18 and yielded as well or slightly better than before.

Sometimes less is more.

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this sounds very interesting . some thing I can set up . I can just build a wall between lights . I will try it . run 10/14 on 1 plant . if its the same man that would be huge .ty for the info .would same me about 350 bucks a month !!!

I run my bloom room at 11.5/12.5 for extra darkness which helps most strains to ripen up nicely in about 70 days or 10 full weeks. I don't seem to get much less yield this way but I surely do not get a better yield doing it. 12/12 is best for maxing out yields but to me finishing them on time is more important than a few more gs because my perpetual grow sorta requires it.
There are other things you can do though: What really can help increase yield is to lower the amount of light they get in the final couple weeks of vegging. I know it sounds wierd but it does work. My regular veg tent is set to 18/6. Plants stay in there until ready for flowering. Then I have another small tent where I put plants about to transition to bloom phase. It is set to 17/7 which is subtle change but makes most plants stretch towards the light a bit while staying in veg. It simulates the way the sun gradually increases hours of darkness in late summer. They only need a week or 2 at this light schedule to increase the girth and length of the main cola stems thereby increasing the size of the bud somewhat once they do get into blooming. Try it & see.... it works!

What I'm trying now is 13/11 for the first 6 weeks of flowering and then 2 weeks of 12/12 and a final week of 8/16 to force ripening. I read that flowering starts at the same time with 13 or 12 hour days so there's no benefit in the form of earlier flowering. Longer days should mean less stretching in the first 3-6 weeks, since most stem growth is at night, and more general dry weight gain. They're not on 12/12 days for 9 weeks in Afghanistan. It's only the last few weeks. Seems to work for them. I gotta pump up the yield with 6 weeks of 13/11. That's 42 extra hours.

10/14 everyday

CannaBruh said:

10/14 everyday

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never did set my 10/14 up to damn lazy . so how is that 10 /14 working for you compared to the 12/12

I run 10/14 or as low as 8/16

I would not say I get less yield, I get less popcorn cos I do that and only grow top buds, flowering time is faster than 12/12 so losing a lil yield is ok, electric is lower, temps are better, herb smells nicer but that could be due to less light less bugs, lol

some people run 24/0 or go back to 18/6 or 16/8 for 1 to 2 weeks around week 4 or even 6 of flower to get more yield can add 1 to 4 weeks to your flowering time

bryan oconner said:

never did set my 10/14 up to damn lazy . so how is that 10 /14 working for you compared to the 12/12

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I've been too lazy to switch back to 12/12 or 11/13.

Found it a losing battle throwing more light over the same numbers in attempts at more weight and or higher quality. Instead we are trying to skew the numbers in our favor by shooting for the same weight/quality with LESS light.

Without a scale I wouldn't be able to tell a 12/12 vs a 10/14 and ime no quality is sacrificed.

Figure out what works for you. I see several different answers in this thread when in reality none of us can say for sure because the factors involved in yield are so varied. Try different grows with different light cycles using clones from the same mother plant, treat them the same, and compare yield when you're done. The only way you'll know is by trying it yourself.

I can't see the point in using 10/14 in early flowering, aside from power savings. But is power really the main concern? Less power, less yield, where's the benefit? It seems logical that more light would equal more growth. I can see 10/14 being logical for the last 1-3 weeks to ensure ripening but what's the benefit of it on weeks 1-6? How is less growth a good thing? I could be wrong but I don't think you need the 10/14 for the whole flowering period in order to get faster ripening. If 10/14 doesn't work to ripen plants in a week or two then I guess you'd have to hit em with 8/16 the next time.

BobCajun said:

I can't see the point in using 10/14 in early flowering, aside from power savings. But is power really the main concern? Less power, less yield, where's the benefit? It seems logical that more light would equal more growth. I can see 10/14 being logical for the last 1-3 weeks to ensure ripening but what's the benefit of it on weeks 1-6? How is less growth a good thing? I could be wrong but I don't think you need the 10/14 for the whole flowering period in order to get faster ripening. If 10/14 doesn't work to ripen plants in a week or two then I guess you'd have to hit em with 8/16 the next time.

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You need to read up on light saturation. It may "seem" logical, but more light does not necessarily mean more yield, as has been proven by many people, like me, who have yielded more with less light.

In simpler terms... growing is hard work for a plant. They fatigue. Plants cant grow at a steady rate all day. They take a while to wake up, then they ramp up, then they take a break (mid day slump), then they really get going....and then they gradually tire out and slow down. Just the same as us. And they need rest like us. The better rested they are the harder they can work/grow.

Try it...youll see. Cut to 10/14 at least and see if you dont yield at least the same or better than the last grow of the same strain. (provided you have a problem free run).

as far as i know, the only reason to go 10/14 in early flower is to make sure you get them all flowering, some plants will hesitate at 12/12, but every strain i know will start to flower at 10/14, then as soon as i see them start, they go back to 12/12, never had one revert yet

i found this article . i trust there experience . http://www.growweedeasy.com/shorter-light-period-harvest-potency