Who runs Bloom temps over 79F regularly?

Apalchen said:
Even without C02 I run up to about 82-83 degrees the first few weeks of flower. I'm under double ended hps. It's more beneficial I'm sure with the c02, I'm about to install it and see. But even without it the first few weeks of flower I feel benefit from higher temps. I like to drop back down to 79 after flowers have set, and even a little lower towards the end.

The higher temps seem to get the plants drinking and filling in the space better.
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Your last sentence summarizes my own experience. Really, I’m embarrassed to be just figuring this out now. I’ve been growing the last 8 years, but not always back-to-back / continuous grows. I appreciate you, and others, sharing your own specific experience. I intend to push my plants harder going forward.
 
Keesje said:
Ambient temperature by itself does not say everything.
You have to look also at leaf temperature and at RV.
This will give you your VPD, and if this is in order there is a really wide range with 'optimal' What do you mean with DO here?
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Just emphasizing the word. I guess I don’t mean anything by it.

Clearly I need to learn about VPD. Currently, however, I’m on my first SCROG & just after a spider mite outbreak, implementing my first IPM program. I’m learning as fast as my old brain will accept & retain new information. I’ve got a bunch of new equipment coming & I still have some important installs in my flowering room. Give me a couple months yet to figure out VPD.
 
Keesje said:
Ambient temperature by itself does not say everything.
You have to look also at leaf temperature and at RV.
This will give you your VPD, and if this is in order there is a really wide range with 'optimal' temperatures.


What do you mean with DO here?
Click to expand...
Oh, and what is RV?
 
BMWEATER said:
LoL it’s from my drag racing days. Mopping up bmws like it was a raining day. Now I just drive a
2013 Porsche GTS and a 420 hp 1951 Chevy
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Sounds like you’re loving life. Used to have a clean ‘83 928S (with a stick), but I was stupid & sold it when I moved in 2000. Regretted it ever since.
 
OK :)
I thought you meant Dissolved Oxygen.
And I could not find a way to place that in your story.
So wondering what other meanings there were of the abbreviation of D.O.
But is clear to me now.
 
downhill21 said:
Sounds like you’re loving life. Used to have a clean ‘83 928S (with a stick), but I was stupid & sold it when I moved in 2000. Regretted it ever since.
Click to expand...

Yeah I know that feeling. I a huge car nut so I have a list of babies I wish I could afford to have back. Funny enough I mostly drive my Chevy these days, since covid hit the streets are super empty so it’s easy to daily drive her
 
downhill21 said:
Your last sentence summarizes my own experience. Really, I’m embarrassed to be just figuring this out now. I’ve been growing the last 8 years, but not always back-to-back / continuous grows. I appreciate you, and others, sharing your own specific experience. I intend to push my plants harder going forward.
Click to expand...
I feel you. The vpd concept it key. There's a nice vpd calculator app for android (and prob ios too). Not a great, detailed explanation, but a great tool. The details and explanations can be searched.
 
I haven't seen anyone mention it in here yet but I've been trying something new I learned from IG and it seems to work pretty good. For the first few weeks of flower If you keep your lights off temp as close as you can to your day time temps it makes the plants stack harder and stretch a bit less.

Or if you want more stretch then for the first few weeks try for about a 10 degree difference from night to day temps.

I have one strain I run a lot that it has definitely worked well on, but I actually had anticipated more stretch so it might have worked a bit too well. I'm about to flip to flower again with a room full of that strain and I'm gonna shoot for somewhere in the middle as far as stretch. So I'm thinking for the first week I will keep light off temps even, second week drop it 5 degrees and 3rd week 10 degrees, which is what I usually shoot for.
 
2com said:
I feel you. The vpd concept it key. There's a nice vpd calculator app for android (and prob ios too). Not a great, detailed explanation, but a great tool. The details and explanations can be searched.
Click to expand...

I’ll get there soon.:-)
 
BMWEATER said:
Yeah I know that feeling. I a huge car nut so I have a list of babies I wish I could afford to have back. Funny enough I mostly drive my Chevy these days, since covid hit the streets are super empty so it’s easy to daily drive her
Click to expand...
Whaddaya have for rubber in back of the Chevy?
 
Apalchen said:
Even without C02 I run up to about 82-83 degrees the first few weeks of flower. I'm under double ended hps. It's more beneficial I'm sure with the c02, I'm about to install it and see. But even without it the first few weeks of flower I feel benefit from higher temps. I like to drop back down to 79 after flowers have set, and even a little lower towards the end.

The higher temps seem to get the plants drinking and filling in the space better.
Click to expand...
Congrats on new equipment (co2). Always exciting.
 
downhill21 said:
Congrats on new equipment (co2). Always exciting.
Click to expand...
Actually still haven't went and bought it, I want the trolmaster controller but Its a bit expensive so I'm looking around to see what can find and local stores since I need tanks anyways. But I def getting it this week.
 
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