does darkness before harvest ACTUALLY do anything??

[uoxi]

so having plants in darkness is kinda like a self flushing? I mean if you flush regularly it wouldn't matter as much? But the darkness is just giving the plant time to get rid of even more extra "shit" stored in it?

Keeping it in the dark any longer than the normal 12 hours will not prompt it to push any more reserves into the root system. Simply cutting prior to the lights coming on when they normally would, or before sunrise for outdoors, will help as much as it can.

 

[Scott187]

Keeping it in the dark any longer than the normal 12 hours will not prompt it to push any more reserves into the root system. Simply cutting prior to the lights coming on when they normally would, or before sunrise for outdoors, will help as much as it can.

so if more than 12 hrs wont help i dont see why cutting before lights come on would help...12/24/or anytime of darkness

 

[uoxi]

so if more than 12 hrs wont help i dont see why cutting before lights come on would help...12/24/or anytime of darkness

At night, the plant will move reserve starches into its root system. At sunrise, or when the lights come on, it will begin drawing those starches back up into the rest of the plant. Keeping the lights off for any amount of time longer than the 12 will not (or should not, IMO) increase this transfer. Harvesting prior to the lights coming on will reduce the amount of starches in your buds.

 

[Biggreen1988]

Leave a plant in the dark for several days what happens to the color? It goes yellow because the chlorophyll is breaking down. Why do we cure ? Mostly to break down the chlorophyll. Why leave in the dark ? So it's cures much faster it will taste like it's been cured for six months in about 2 that's the simplest way to explain it

 

[goofy81]

A lot of these theories are contradicted by the fact that plants transpire at night. Much less than during the daytime, but yes they transpire at night which is what all professional greenhouses take into account for having a large first feed of the day to prevent the EC buildup which occurs at you guessed it over NIGHT.

Then again, what do I know?

 

[goofy81]

Leave a plant in the dark for several days what happens to the color? It goes yellow because the chlorophyll is breaking down. Why do we cure ? Mostly to break down the chlorophyll. Why leave in the dark ? So it's cures much faster it will taste like it's been cured for six months in about 2 that's the simplest way to explain it

Funny thing is, all the buyers want Green buds.

 

[DoobieDoobs]

the bro science was strong is this thread, 11 years ago xD.

 

[TeW33zy]

Yes. During darkness the plant stores starches in its roots, during the day when light is on, they are drawn up into the plant. Harvesting just before lights on (after flushing thoroughly of course) minimizes the amount of starches in the plant at the time of harvest. This means less starches to cure out, and a less harsh final product.

No wonder 99% of you are failing, u guys come up with the dumbest stuff ever. I've never, ever ever ever ever ever never ever never ever never ever ever never ever never heard anyone buying a bag of kush, Diesel, durban or whatever say (in the history of smoking cannabis) this had 48 hours of darkness before harvest. I would bet you 50:1. I will put up $5,000 and you will put up $100. We will do a LIVE side by side comparison of a grow pulled (like it should be) against yahl trash unvalidated bs theory nonsense bullsh*t. I will pull 5 on time and 5 with 48 hour darkness. All you have to do is identify of the 10 which 5 had 48 hours of darkness. If u guess the correct I will give you $5,000 but if u don't u will give me $100. This would be easy right since yahl bullshit yahl believe all that bs nonsense then this is a quick 5k. You would never ever know which 5 had 48hours of darkness, not by smell, not by sight or ell, thats because there IS NO FUKN difference. You can believe all the bs out there and yah keep failing. But let me know when u ready to win $5k.

 

[Herb & Suds]

No wonder 99% of you are failing, u guys come up with the dumbest stuff ever. I've never, ever ever ever ever ever never ever never ever never ever ever never ever never heard anyone buying a bag of kush, Diesel, durban or whatever say (in the history of smoking cannabis) this had 48 hours of darkness before harvest. I would bet you 50:1. I will put up $5,000 and you will put up $100. We will do a LIVE side by side comparison of a grow pulled (like it should be) against yahl trash unvalidated bs theory nonsense bullsh*t. I will pull 5 on time and 5 with 48 hour darkness. All you have to do is identify of the 10 which 5 had 48 hours of darkness. If u guess the correct I will give you $5,000 but if u don't u will give me $100. This would be easy right since yahl bullshit yahl believe all that bs nonsense then this is a quick 5k. You would never ever know which 5 had 48hours of darkness, not by smell, not by sight or ell, thats because there IS NO FUKN difference. You can believe all the bs out there and yah keep failing. But let me know when u ready to win $5k.

I like the sentiment
But a bit harsh for a 12 year old thread

 

[curious2garden]

No wonder 99% of you are failing, u guys come up with the dumbest stuff ever. I've never, ever ever ever ever ever never ever never ever never ever ever never ever never heard anyone buying a bag of kush, Diesel, durban or whatever say (in the history of smoking cannabis) this had 48 hours of darkness before harvest. I would bet you 50:1. I will put up $5,000 and you will put up $100. We will do a LIVE side by side comparison of a grow pulled (like it should be) against yahl trash unvalidated bs theory nonsense bullsh*t. I will pull 5 on time and 5 with 48 hour darkness. All you have to do is identify of the 10 which 5 had 48 hours of darkness. If u guess the correct I will give you $5,000 but if u don't u will give me $100. This would be easy right since yahl bullshit yahl believe all that bs nonsense then this is a quick 5k. You would never ever know which 5 had 48hours of darkness, not by smell, not by sight or ell, thats because there IS NO FUKN difference. You can believe all the bs out there and yah keep failing. But let me know when u ready to win $5k.

Hey here's the guy that believes photons are consumable. Hello

See here's wt I am talking about. If seedlings require 25watts minimum to branch and u put 7 under a 77 watt fixture then that is 10 Watts per plant. They will never get wider, u will overwater

 

[Nykodemuz]

My winter grow is finally done. Been flushing with just plain water for two whole weeks and got the nutes down from 1200 to 200. I just did my last flush at noon today. I plan to harvest 8AM this Sunday, so when the lights shut off tonight at 8PM, I will shut off the timer and keep them in total darkness till harvest time at 8am Sunday. That's 36 hours of darkness. I will then chop and hang to dry.

Q1: However, should I work in green light while I harvest, or could I use the shop lights in the room to see better?

I need to get the plants out of the tent and thoroughly clean it, remove everything except for the exhaust system that pulls the tent air outside. The exhaust is a 4" cheapo Vivosun exhaust, minimal CFM.

Q2: Can I simply use the exhaust system and no fans with the four bottom vents open for equal airflow during the drying process rather than using fans that just blow ambient air around the tent? Or should I do both a fan and the exhaust system?

 

[Nykodemuz]

Ok, is this lights off before harvest bull$h1t or not? Someone make a poll

 

[DoobieDoobs]

Ok, is this lights off before harvest bull$h1t or not? Someone make a poll

Short answer: It's bs.
Long answer: it is bullshit.

 

[a mongo frog]

Short answer: It's bs.
Long answer: it is bullshit.

It makes buds more resinous.

 

[Hollatchaboy]

My winter grow is finally done. Been flushing with just plain water for two whole weeks and got the nutes down from 1200 to 200. I just did my last flush at noon today. I plan to harvest 8AM this Sunday, so when the lights shut off tonight at 8PM, I will shut off the timer and keep them in total darkness till harvest time at 8am Sunday. That's 36 hours of darkness. I will then chop and hang to dry.

Q1: However, should I work in green light while I harvest, or could I use the shop lights in the room to see better?

I need to get the plants out of the tent and thoroughly clean it, remove everything except for the exhaust system that pulls the tent air outside. The exhaust is a 4" cheapo Vivosun exhaust, minimal CFM.

Q2: Can I simply use the exhaust system and no fans with the four bottom vents open for equal airflow during the drying process rather than using fans that just blow ambient air around the tent? Or should I do both a fan and the exhaust system?

Yes

 

[WalkinTall]

Ok, is this lights off before harvest bull$h1t or not? Someone make a poll

i wanna pitch my 2¢ in bc I’m trying it now as we speak. I ‘m photoing the plant each day and in the 2nd 24 hr period it had gotten visibly more frost. Not by a huge amount but noticeable.


you can research what i read but there is a legit study that says yes.

so here’s my take.

every plant responds to light the entire grow cycle, evidenced by photo period (auto flower may differ) and lights equal temp and humidity (change ).
If you sit in the dark 3 days, like a plant… your body adjusts and plants are not vastly different. The root temp is lower, the plant thinks it’s winter and gives it’s last to stay alive as long as possible…. So it produces (oil) resin to protect from the impending cold and eventual doom of the plant. I like to think of the process as a “cold sweat” and it’s one that produces oil as the plant uses the last Nutes up. The idea that the plant doesn’t “change” is not logical… so how does it change? It excretes oil as it soaks up water with no sun and no food. As water fills the plant… any resin goes where? Oil and water don’t mix… that part is still true right?

 

[Herb & Suds]

i wanna pitch my 2¢ in bc I’m trying it now as we speak. I ‘m photoing the plant each day and in the 2nd 24 hr period it had gotten visibly more frost. Not by a huge amount but noticeable.


you can research what i read but there is a legit study that says yes.

so here’s my take.

every plant responds to light the entire grow cycle, evidenced by photo period (auto flower may differ) and lights equal temp and humidity (change ).
If you sit in the dark 3 days, like a plant… your body adjusts and plants are not vastly different. The root temp is lower, the plant thinks it’s winter and gives it’s last to stay alive as long as possible…. So it produces (oil) resin to protect from the impending cold and eventual doom of the plant. I like to think of the process as a “cold sweat” and it’s one that produces oil as the plant uses the last Nutes up. The idea that the plant doesn’t “change” is not logical… so how does it change? It excretes oil as it soaks up water with no sun and no food. As water fills the plant… any resin goes where? Oil and water don’t mix… that part is still true right?

Cool story bro