Gas Lantern Routine

bird mcbride

bird mcbride

Well-Known Member
Unless you plan to put the clones(s) into bud keep the moms on 24L/0d.

I put all seedlings directly into 12/12. It's not broken:)
 
BobCajun

BobCajun

Well-Known Member
Here's something I just found out, if you flower with 11/13 and give them 36 hours of darkness at the end they get less harsh and super-potent. They felt more resinous than normal too. I originally only planned to give them 24 hrs dark but it ended up being 36. The 11/13 thing was just to get somewhat faster ripening without taking a serious yield hit by going right to 10/14. I wouldn't go longer than 36 hrs on the darkness though because mold likes darkness.
 
BobCajun

BobCajun

Well-Known Member
Apparently my idea of using a 11/13 light cycle wasn't as good as I thought. See section 5.5.4 of this pdf for details (page 130 of the book). They tested 11, 12 and 13 hour days. 13 was no improvement over 12 but 11 was considerably worse for both yield and potency. 11 didn't seem to speed up maturity either as you might expect. The only thing you'll get from using less than 12 hours is reduced weight and potency. My 36 hours of dark at the end was probably no better than 24 either. I've read that all starch is used up within 24 hours so that should do it to reduce harshness.
 
torontoke

torontoke

Well-Known Member
BobCajun said:
Apparently my idea of using a 11/13 light cycle wasn't as good as I thought. See section 5.5.4 of this pdf for details (page 130 of the book). They tested 11, 12 and 13 hour days. 13 was no improvement over 12 but 11 was considerably worse for both yield and potency. 11 didn't seem to speed up maturity either as you might expect. The only thing you'll get from using less than 12 hours is reduced weight and potency. My 36 hours of dark at the end was probably no better than 24 either. I've read that all starch is used up within 24 hours so that should do it to reduce harshness.
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If your trying to squeeze every last gram out of your grow than why switch what's known to work?
Fire up your thouie for 12/12 over a batch of big bud or critical.

Potency is not effected at all.
That's from personal experience not a book. And the plant definitely finished early and as frosty or more than 12/12.
 
RM3

RM3

Well-Known Member
BobCajun said:
Apparently my idea of using a 11/13 light cycle wasn't as good as I thought. See section 5.5.4 of this pdf for details (page 130 of the book). They tested 11, 12 and 13 hour days. 13 was no improvement over 12 but 11 was considerably worse for both yield and potency. 11 didn't seem to speed up maturity either as you might expect. The only thing you'll get from using less than 12 hours is reduced weight and potency. My 36 hours of dark at the end was probably no better than 24 either. I've read that all starch is used up within 24 hours so that should do it to reduce harshness.
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That dude (pdf) worked for GW Pharma, they were using Mercury Vapor lights

I use Gas Light veg and do a 10/14 flower under T5's and have no problems with yield or potency
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T_SAM_1133.JPG
 
BobCajun

BobCajun

Well-Known Member
RM3 said:
That dude (pdf) worked for GW Pharma, they were using Mercury Vapor lights

I use Gas Light veg and do a 10/14 flower under T5's and have no problems with yield or potency
.
View attachment 3556292
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Your plants do look healthy, but the article seemed pretty clear about 11/13 producing less weight and potency. There's actually another article around where they found that 10 hours light yielded half the potency of 12 hour. Granted the strain probably makes a difference in how potency is affected but still, that's two different studies getting similar results from short light hours. Maybe you just don't notice the difference but if you did a side by side comparison maybe you would.
 
RM3

RM3

Well-Known Member
BobCajun said:
Your plants do look healthy, but the article seemed pretty clear about 11/13 producing less weight and potency. There's actually another article around where they found that 10 hours light yielded half the potency of 12 hour. Granted the strain probably makes a difference in how potency is affected but still, that's two different studies getting similar results from short light hours. Maybe you just don't notice the difference but if you did a side by side comparison maybe you would.
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I promise you they are wrong hit the are they done link in my sig then go to page 2 there are several smoke reports from others smoking my buds I breed and grow a lot of one hitters most of my gear test 25+%

You need to be aware that there is still a lot of negative propaganda out there, not all articles tell the truth and that goes double for anything related to GW Pharma
 
BobCajun

BobCajun

Well-Known Member
RM3 said:
I promise you they are wrong hit the are they done link in my sig then go to page 2 there are several smoke reports from others smoking my buds I breed and grow a lot of one hitters most of my gear test 25+%

You need to be aware that there is still a lot of negative propaganda out there, not all articles tell the truth and that goes double for anything related to GW Pharma
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I noticed you posted that you put a 30 minute dark break in the middle of your light period. That may be what's boosting your yields to the same as 12/12. A 1 hour break works even better, 5.5/1/5.5/12, though if you use 14 hour nights I guess it would be 4.5/1/4.5/14.
 
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RM3

RM3

Well-Known Member
BobCajun said:
I noticed you posted that you put a 30 minute dark break in the middle of your light period. That may be what's boosting your yields to the same as 12/12. A 1 hour break works even better, 5.5/1/5.5/12, though if you use 14 hour nights I guess it would be 4.5/1/4.5/14.
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That was an experiment that is over now
 
BobCajun

BobCajun

Well-Known Member
RM3 said:
That was an experiment that is over now
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Okay so what were the results? Did it turn out to produce lower weight or what? A 1 hour dark break in the middle of the day increased yield of tomatoes and soybeans by about 50% over straight all day light, just foliage, they didn't actually grow them to maturity. It was an experiment and apparently nothing further was done with it since I can't find anything about it on the net. I found it in a book about photosynthesis in a university library. However, since Cannabis would be in flowering stage I don't know if it would work the same or not. Might interfere with flowering somehow. I tried it and it worked well in vegetative mode. I tried it in flowering for a few weeks but the buds were looking thin so I chickened out and went back to normal. That was a strain I hadn't grown before though so maybe that's just how the buds normally look. Like I said, it was only the first few weeks so buds would have been thin anyway.
 
RM3

RM3

Well-Known Member
BobCajun said:
Okay so what were the results? Did it turn out to produce lower weight or what? A 1 hour dark break in the middle of the day increased yield of tomatoes and soybeans by about 50% over straight all day light, just foliage, they didn't actually grow them to maturity. It was an experiment and apparently nothing further was done with it since I can't find anything about it on the net. I found it in a book about photosynthesis in a university library. However, since Cannabis would be in flowering stage I don't know if it would work the same or not. Might interfere with flowering somehow. I tried it and it worked well in vegetative mode. I tried it in flowering for a few weeks but the buds were looking thin so I chickened out and went back to normal. That was a strain I hadn't grown before though so maybe that's just how the buds normally look. Like I said, it was only the first few weeks so buds would have been thin anyway.
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The difference was minimal so I stopped doing it
 
guardogz

guardogz

Member
so i go straight to 6/18 for flowering. was wondering if anyone had tried 6/12 shortening the day or cycle to 18 hours. how bout it dr. who or rm3, any thoughts on that? not here to criticize the 12/12 folks, just doin things differently...
 
RM3

RM3

Well-Known Member
guardogz said:
so i go straight to 6/18 for flowering. was wondering if anyone had tried 6/12 shortening the day or cycle to 18 hours. how bout it dr. who or rm3, any thoughts on that? not here to criticize the 12/12 folks, just doin things differently...
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nothing I would do, but have fun
 
fishdeth

fishdeth

Well-Known Member
I have an AK-47 on both sides and a Jack Herer in the middle.
Plants have been mainlined and I have 24 main colas with several substantial side branches and will cull out all the small larf soon.
I followed the GLR for the entire veg cycle and am ready to flip tomorrow.
Flower time specs for both are close, 63-64 days.
I was thinking, A. 11.5/12.5 at flip then reducing by 30 min every week till I get to 9/15, then ride that till ripe....
Or, B. 11/13 at flip then reducing 30 min every 2 weeks till ripe....?
A, gets me down to 9 hours of light quicker and the plants will see 3 weeks of 9/15.
B, gets me to 9/15 right at the supposed end of the flower period.

Which would y'all choose?
I'm leaning toward "B" just to have more light overall hittin the nugs???

Thanks !
20160227_150045-1_resized.jpg
 
Budley Doright

Budley Doright

Well-Known Member
Do you have a progressive set of pics? I'm thinking 60 days of veg and they should be bigger? Just wondering if GLR held them back a bit?
 
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