Calling all pros-Does a 36 hour dark period between vegging and flowering force....

darkdestruction420

darkdestruction420

Well-Known Member
A plant that hasnt matured and shown preflowers to instantly show them? I'm just trying to prove a point here, im not dumb enough to actually be asking seriously. lol. chime in please......
 
jawbrodt

jawbrodt

Well-Known Member
I've never tried it myself, because I've always grown perpetual and never had the option. But, I'm going to vote "no", because I would think that if it actually did anything significant, that it would be a well-known fact by now, rather than the mystery that it is.lol

So, now I'll kick back and hope that some people will be able to give us some actual results, after having experimented with the technique. :)
 
researchkitty

researchkitty

Well-Known Member
Flowering kicks in over the first 4-5 days of 12/12, so no, it wouldnt be possible to see instant results as your requesting. There's no known strain that I've ever seen or even heard of that will.
 
darkdestruction420

darkdestruction420

Well-Known Member
thanks jaw,if i can +rep for stopping in and helping. lets keep em coming guys....please. lol

update,
thanks kittie, +rep for helping too, sorry jaw, i tried to get you but i gotta spread it around first. lol
 
W

WA.medigrow

Member
I'm far from a pro, but would think it would have nothing to do with preflowers showing. I have read somewhere it is supposed to send an unmistakable sign to the plant to flower, but I doubt it's instantaneous. If they haven't shown preflowers, I wouldn't flower them anyway. The plant isn't mature enough and will still try to veg, but with only 12 hours of light.
 
jawbrodt

jawbrodt

Well-Known Member
^Agreed, mine start noticeably stretching by the 3rd day of 12/12, usually, and takes 5 days at the most. 3 days of darkness would probably delay them, actually.lol
 
darkdestruction420

darkdestruction420

Well-Known Member
Thanks for the continued input, +rep for anyone who helps me prove my point, then again this guy probally wont even believe it if i get a 100 other experienced growers saying so. lol.
 
riddleme

riddleme

Well-Known Member
It is the 12 hour light AND 12 hour dark period that release the hormones to trigger flowering

darkness alone does not do this and so the answer is NO

I am in agreement that at best it will delay things
 
ganjaluvr

ganjaluvr

Well-Known Member
I'm just too interested now... would you mind to share.. because I can't wrap my mind around this really.. k.. someone actually told you that you should give your plants a 36 hour dark period.. between veg and flowering cycles?????????? The fuck...? I too will have to answer no to this. So to all the noobs that might read this... this is not necessary! You just simply do what you were doing during veg cycle.. only thing you should worry about doing.. is extending the 'Lights Off Period'. So, yes you just go straight into flowering.. there's no pausing. The hell brah.. Who told you that?
 
darkdestruction420

darkdestruction420

Well-Known Member
lol, blazed hippie is the one who keeps trying to say it and wont listen to a thing i say, he read some random growbook and thinks he's an expert or something. lol
 
JN811

JN811

Well-Known Member
I agree and also say NO its not necessary if ur plant is mature it will show sex with normal 12/12
 
P

PBFseedco.

Well-Known Member
None Pro here...Some say that this 24-48hrs of darkness before flowering helps the plant from stretching. I would never try this myself but if you do, I wouldn't give any more than 24 hrs of straight darkness.bongsmilie
 
riddleme

riddleme

Well-Known Member
Hey I have a book it is called Marijuana Botany by Robert Clarke,,,

and here is a quote from it

Cannabis flowers when exposed to a critical daylength which varies with the strain. Critical daylength applies only to plants which fail to flower under continuous illumination, since those which flower under continuous illumination have no critical daylength. Most strains have an absolute requirement of inductive photoperiods (short days or long nights) to induce fertile flowering and less than this will result in the formation of undifferentiated primordia (unformed flowers) only.
The time taken to form primordia varies with the length of the inductive photoperiod. Given 10 hours per day of light a strain may only take 10 days to flower, whereas if given 16 hours per day it may take up to 90 days. Inductive photoperiods of less than 8 hours per day do not seem to accelerate primordia formation. Dark (night) cycles must be uninterrupted to induce flowering
Click to expand...
pretty straight forward
 
JN811

JN811

Well-Known Member
PBFseedco. said:
None Pro here...Some say that this 24-48hrs of darkness before flowering helps the plant from stretching. I would never try this myself but if you do, I wouldn't give any more than 24 hrs of straight darkness.bongsmilie
Click to expand...
If anything Id say the opposite.. darkness increases stretching.. unless thats what u were saying..
 
Dai Dai

Dai Dai

Member
Im a noob and know the basic you need light for the plant to stretch toward and how does a plant grow (instant flowering) in the dark? can someone explain?
 
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