Temperature differential

[osowhom]

I am flipping my girls today I just lollipopped them and got rid of all lower growth question is as follows should I keep the room the same temp day and night or colder at night? Does it make a difference I am trying my best to make some nice buds any positive answers are appreciated

 

[twentyeight.threefive]

My indoor temps drop by about 10 degrees at night. Doesn't really matter other then it will affect your RH.

 

[J232]

Not sure what everyone else does, I’m happy with a 10 degree F drop with lights out, make a difference? No clue..

 

[Sparky413]

A very successful commercial grower acquaintance of mine told me he likes to have a temp of 85f and rh of 51-53% during veg. During flower he likes his daytime temp at 70-75 and 43% rh and then he drops the temperature 20 degrees during night. I think this helps bring out the colors and preserve and promotes the terps. There's no way I could do that to my environment, I just take what I can get. The girl I"m about to chop is a clone that I ran before, there was a huge temp difference between veg and flower because it took me a little bit to get my ac going and it was like 95-100 in my tents. The color is very noticeably different than last time i ran her.

*this was for his personal grow, no idea what he does commercially

 

[Star Dog]

I'd rather have a drop at night 20/21c is ideal I think, ime 24/25c during the night causes more stretch, all of my 1"+ growth a day during stretch has been during summer bar none.

It would be spectacular if you could do both for the sake of 1st hand research but it's not practical lol

 

[curious2garden]

My temps fluctuate about 20 degrees F give or take. I don't pay much attention since my RH is so low. The thing I'd worry about is the difference in relative humidity. It's my understanding that can trigger PM

 

[Star Dog]

My temps fluctuate about 20 degrees F give or take. I don't pay much attention since my RH is so low. The thing I'd worry about is the difference in relative humidity. It's my understanding that can trigger PM

That's a blessing man, some low/lower humidity would be a welcome break here.

It's not just the expense it's that constant threat of rot at the back of your mind.

 

[curious2garden]

That's a blessing man, some low/lower humidity would be a welcome break here.
View attachment 4937108
It's not just the expense it's that constant threat of rot at the back of your mind.

May I recommend Marrone Regalia as a preventative? I had some genetics that were simply prone to mildew and Regalia allowed me to make it to harvest and they still are some amazing genetics. If I lived where I had humidity like that I wouldn't run without it. That would just eat at me!

 

[osowhom]

That's a blessing man, some low/lower humidity would be a welcome break here.
View attachment 4937108
It's not just the expense it's that constant threat of rot at the back of your mind.

That's a bummer how do you control that a dehumidifier puts out heat doesn't it maybe get a 50 gallon drum of rice lol

 

[SmokeyExcursion]

I read somewhere on here that warmer night Temps reduce stretching in plants and in turn will yield a denser flower. Can't say that it's true. But I will say, i am running warmer night Temps vs day Temps this time of year,, and my plants are bushing out a little more than normal while not gainingas much height. If you're going for maximum density that's something to consider.

 

[PadawanWarrior]

I am flipping my girls today I just lollipopped them and got rid of all lower growth question is as follows should I keep the room the same temp day and night or colder at night? Does it make a difference I am trying my best to make some nice buds any positive answers are appreciatedView attachment 4937018View attachment 4937019View attachment 4937020

Negative temp differential works great to lessen the stretch.

 

[Star Dog]

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That's a bummer how do you control that a dehumidifier puts out heat doesn't it maybe get a 50 gallon drum of rice lol

I keep air passing through continually, with the lights off I need the fan low so that the dehumidifier has a chance to dry the air, the downside is its around 24c with the light out.

I've since swapped to light on during the night it's worth 3/4% rh and 1c in temp.

 

[Star Dog]

I read somewhere on here that I need calmag with coco that doesn't make it the case though in my experience.

Limit stretch l... Why would a cannabis plant not stretch when it's warm well fed and in stretch mode lol... That's hilarious!

 

[PadawanWarrior]

Here's a few links that explain it more.

DIF For Control of Plant Stretching on Bedding Plants, Ornementals and Transplants | PT Growers and Consumers

Control plant stretching with the “DIF” technique. Find out how to adjust day/night temperatures for healthier plants.

www.pthorticulture.com

Reduce Plant Stretch by Controlling Your Day/Night Temperatures

Increase branching and reduce plant stretch by adjusting your temperature cycles.

chilledgrowlights.com

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