The unofficial Official 11 / 13 from Seed thread -

J.Green

Member
So had some brutal storms roll through yesterday power went out like 3 times during the lights on time. I’m a bit worried it might effect the garden turn my girls hermmie or something haha it’s the first time for me I’ve had this happen
 

toad37

Well-Known Member
A couple of photo-period fem Respect 4 Gorilla's on the left and an Original Amnesia Auto fem on the right. My first auto.... 11/13 from seed... let's make history.

From Solo cups into 1 liter (?) fabric; cut about an inch of the top of 1/2 gallon pots. Really like this size for up sizing from Solo cups. Thanks for tip, Al.

https://www.seedsman.com/en/respect-4-gorilla-feminised-seeds

 

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toad37

Well-Known Member
So had some brutal storms roll through yesterday power went out like 3 times during the lights on time. I’m a bit worried it might effect the garden turn my girls hermmie or something haha it’s the first time for me I’ve had this happen
Oh dang, man... It is certainly possible, but try not to worry about it. Hopefully any effects are minimal. Let us know how it goes!
 
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toad37

Well-Known Member
8 of the 11 Rasol sativa beans have nice tails. All 11 just went into .5 gallon fabric pots with top inch cut off. Rock on and stay lifted my friends.

 

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hillbill

Well-Known Member
3 COB fixtures with 90 watts with 4000k Vero29 about5 years old in veg. Flower 31” x 59” Photon 180 from Robin with 2 3500k 95 cri 1818 Citizen and a 5 year old Optic 120 with 2 Vero 18s 3500k and just got HLG 3000k v1 135 watt Quantum Board.
 

toad37

Well-Known Member
The Rasol Village from Khalifa Genetics... Just waiting on a few more to break above the coco.

... the others plants in the tent are doing nicely, too.... It has been fairly easy, thank god, to keep the temperature between 72-78 both day and night and relative humidity roughly 47 - 57. I know that top end of the humidity is a little high but they love it and I'm watching the plants that are 7 weeks into flower closely for any issues. Stay lifted my friends.
 

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potroastV2

Well-Known Member
Well, I'd say that you have not read Marijuana Botany by Dr. Rob Clarke. Yes, the 12 hours of uninterrupted darkness is required to maintain flowering, but the maximum hours of light are what are required to produce THC.

I go by what Rob Clarke says in MJ Botany:

Research has shown (Valle et al. 1979 ) that twice as much THC is produced under a 12-hour photoperiod than under a 10-hour photoperiod.
(emphasis added)

So that tells me that I want to give my plants as many hours of light in each day while still giving them enough hours of dark to keep them flowering.

Cannabis will be induced to flower, and will continue flowering, if the "critical daylength" is maintained. We know that is actually the hours of darkness that is required. And it's different for different strains of cannabis.

We know that 12 hours of darkness will maintain flowering in all strains, so we give them 12 hours of darkness. And now we know from our reading in Marijuana Botany that giving them less than 12 hours of light will cause much less THC to be produced.

:mrgreen:
 

toad37

Well-Known Member
With all due respect not looking to argue this. I am aware of potential shortcomings. If you don't have personal experience to share running 12/12 from seed please kindly move along to another thread.
 

Mtngreens

Active Member
I'm surprised nobody has mentioned GLR. Which is the Gas Lantern Routine and the Veg schedule is as follows: 12 hours on, 5.5 hours off, 1 hour on, 5.5 hours off. When you are ready to flower just remove the 1 hour nightly interrupt and run 12 on/12 off.

Here's some of the many benefits of running this schedule. Plants build up hormone levels to the brink of flower. The nightly interrupt is the only thing keeping them from flowering on their own schedule. Plants will grow tighter nodes and be less leggy during veg. You won't get any pre flowers unless it's a genetic issue which this light schedule helps identify.

Once the interrupt is removed plants will barely stretch because their hormones are already built up to the point of flower. They focus their energy on flower and resin production immediately rather then stretching for two weeks which can be problematic indoors.

Plants take a certain number of light hours to complete their life cycle. When you reduce the daily light hours your plants will grow slower in return. The way I offset this is I start seedlings sooner in my nursery under less lights and I transplant them into the main room once their established. Overall this helps me save energy and maximize my indoor ceiling space. I've grown many tall sativas with this light schedule where it would otherwise be impossible.

Here's some photos of indicas and sativas from seed flowered at 12 / 12 and vegged in Gas Lantern Routine.IMG_20191027_092233_164.jpgIMG_20170227_135816_062.jpgIMG_20200222_081348_293.jpgIMG_20180728_084820_090.jpg
 

toad37

Well-Known Member
Please--- Respectfully, comments not about your own experience and current grows of 12/12 from seed are not wanted on this thread; just to keep it focused. Thanks so much.

Reminder- This thread is packed with info for those interested in 12/12 from seed.

 
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Mtngreens

Active Member
Both are 12 hours of continous light on \ then off for the day. The hour interrupt is meaningless in the info I provided besides one factor it prevents some strains from autoflowering (mainly sativas). 12 Hours of light will produce the same benefits as stated above with the same drawbacks + autoflower if no nightly interrupt is used.
 

potroastV2

Well-Known Member
With all due respect not looking to argue this. I am aware of potential shortcomings. If you don't have personal experience to share running 12/12 from seed please kindly move along to another thread.

I have grown pot every which way for 45 years! I was responding to the title of this thread which says 11/13, so I showed an expert who said that much less THC is produced when you provide your plants with 10 hours of light per day instead of 12. Did you understand that?

BTW when growing indoors, I give my plants 13 hours of light per day in flowering. Is that what the title means?


:mrgreen:
 

MICHI-CAN

Well-Known Member
I have grown pot every which way for 45 years! I was responding to the title of this thread which says 11/13, so I showed an expert who said that much less THC is produced when you provide your plants with 10 hours of light per day instead of 12. Did you understand that?

BTW when growing indoors, I give my plants 13 hours of light per day in flowering. Is that what the title means?


:mrgreen:
Too much static. Are you saying you are running artificially lengthened 25 hour days? You just stated 12 to maintain. Now are saying 11. Wish I had not taken the pain pills. But this is of interest.
 

toad37

Well-Known Member
Update on Dinafem's Original Amnesia Auto 11/13 from seed. She has been happy and healthy from the git go... Yes, LST on an auto.

 

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