24 hr Darkness b4 Harvest!

BUMP!!!! Bump BUMP

its up to u, if u want to go ahead but u dont have to..i picked one the other day with just 12hours of dark u can check my grow journal its some good shit..but im ganna give all my other plants 24-72hours of dark before i harvest

thanks bro!

Come on guys! does anyone know if theres any benefit from this?

yea it works maybe i didnt explain good enough..give it 72hours of dark before harvest if u really want to benefit..its suppose to create more resin glands(thc) and even slightly bigger buds just look it up on google..i already got shit load of resin glands so i dont trip but i like to give them around 24-72hours of dark before harvest most of the time i cant wait and it ends up about 50-60hours

mexsinsemilla said:

Come on guys! does anyone know if theres any benefit from this?

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It is pure bs... No actual science behind it. Go ahead guys bring the arguements, I think I have this debate memorized.

lol..........

jsgrwn said:

It is pure bs... No actual science behind it. Go ahead guys bring the arguements, I think I have this debate memorized.

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Gonna agree with him. I was harvesting 2 plants a week. One would do the 24 hrs darkness and the other I would harvest just before lights on. There absoulutly no difference. Except I was able to take a break between plants.

jsgrwn said:

It is pure bs... No actual science behind it. Go ahead guys bring the arguements, I think I have this debate memorized.

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There is no actual science behind a period of darkness increasing THC levels? Interesting.


"The Stichting Institute of Medical Marijuana (SIMM), the first company to sell marijuana through the pharmacies of Holland, has been investigating the medical possibilities of cannabis, together with TNO laboratories and the University of Leiden. One of their discoveries has been that to keep the ripe plants in the dark before harvesting could increase their potency.

SIMM’s growers separated a crop of mature plants, harvested half of them and kept the other half in absolute darkness for 72 hours before cutting and drying. Analysis of the resulting dried buds showed that some varieties had seen an increase of THC of up to 30%, while CBD and CBN remained the same."

What do you have memorized that will factually refute the above?

Check mate! lol thanks Brick top

Brick Top said:

There is no actual science behind a period of darkness increasing THC levels? Interesting.


"The Stichting Institute of Medical Marijuana (SIMM), the first company to sell marijuana through the pharmacies of Holland, has been investigating the medical possibilities of cannabis, together with TNO laboratories and the University of Leiden. One of their discoveries has been that to keep the ripe plants in the dark before harvesting could increase their potency.

SIMM’s growers separated a crop of mature plants, harvested half of them and kept the other half in absolute darkness for 72 hours before cutting and drying. Analysis of the resulting dried buds showed that some varieties had seen an increase of THC of up to 30%, while CBD and CBN remained the same."

What do you have memorized that will factually refute the above?

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yea i've read this before thats y i tryed it and yea it works..i bet the other fools who posted sayin its bs dont even got a thc test kit..they just looked at it and said "nope no difference its bs"

HomeGrown420baby said:

yea i've read this before thats y i tryed it and yea it works..i bet the other fools who posted sayin its bs dont even got a thc test kit..they just looked at it and said "nope no difference its bs"

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Why the name callin (fools) ? Dude I have tryed it many times, and no I do not have a thc test kit. BUT I do know how to smoke and get stoned and when a 24 hr dark before harvest bud gets you just has high as the straight harvet, I am more than sure there is NO 30% increase in thc.
One has to wonder why High Times is not backing this claim? As a Matter of fact there was a well written article (March 09) on a Grower that goes by the name of Wizard, " then right before harvest he likes to leave his plants in the dark for 72 hrs. According to the Wizard, the stress induced by absence of light cause the precious flowers to darken there color and deepens the the flavor of the bud".
No mention of THC Increase. Something like that would be all over the news, like world!

I asked if it benefited in anyway! not thc goldganja , and i bet his from so cal ! fool is like sayin dude,bro ect.

Brick Top said:

There is no actual science behind a period of darkness increasing THC levels? Interesting.


"The Stichting Institute of Medical Marijuana (SIMM), the first company to sell marijuana through the pharmacies of Holland, has been investigating the medical possibilities of cannabis, together with TNO laboratories and the University of Leiden. One of their discoveries has been that to keep the ripe plants in the dark before harvesting could increase their potency.

SIMM’s growers separated a crop of mature plants, harvested half of them and kept the other half in absolute darkness for 72 hours before cutting and drying. YAnalysis of the resulting dried buds showed that some varieties had seen an increase of THC of up to 30%, while CBD and CBN remained the same."

What do you have memorized that will factually refute the above?

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After this post you wrote "check Mate", thanks bricktop.
I am just wondering, do you think it's still a check mate?

I wish a community existed where you had to cite your sources when posting factual information; I don't think anything's proven until we see more information on the test conditions.

....and we all know that once a single study has been conducted we all accept those conclusions as fact and stop thinking about it. Thats how science works right?
I wonder if the plants that were harvested first had been given 3 more days under the lamp, would the results be a little more consistant? Not to crap on your meticulous research, but that study strikes me as flawed.

In my opinion, which is based on my personal experiences actually growing marijuana. I've experienced no effects either positive or negative from giving my plants a period of darkness before harvest. I've tried this multiple times with different strains, and while i don't have access to any sort of gas chromatography equipment to measure THC levels, I'm quite sure the marijuana given the dark period was in no way superior to the dope that was left under the lights.

I agree with SpruceZeus. I think its a serious flaw in the test that they harvested that first half of the crop and didnt just leave them under normal 12/12. I think the extra time in the ground would account for the extra thc production. I would also like to point out the phrases "some strains" and "up to 30%" meaning results that could be considered no where near consistent were acheived.

so where did we land? should i give my plants 24 48 hours of dark before harvest?