Which Temp Do You Go By During Flowering, Is It Room Temp Or Is It Canopy Temp?

  • Thread starter Hands On
  • Start date
  • Tagged users None
Hands On

Hands On

190
63
Which temp do you go by during flowering, is it room temp or is it canopy temp?

Im hitting 91-95 right at canopy but the room is 78-82 are these number to high during flowering

I am ducting in and out, oscillating fan is running
 
Jimster

Jimster

Supporter
2,770
263
I wouldn't let it go any higher than 90...around 85 is optimum, IMHO. Keeping the roots warmer accelerates growth, so you sound like you are in good shape I can't remember the upper limit for vegetative growth, but anything over 95 and I think it slows down greatly. There was some research done with methanol tp prevent heat damage, but I can't remember what the final outcome was.
 
MIMedGrower

MIMedGrower

17,190
438
It depends on what lighting and if using co2 or not.

With max lighting and co2 likely 85 will work well but with mid power like my 600 hps’ lamps and flow through ventilation 75-77 degrees is the highest I can go without loss of quality. Cool temps promote more potency and terpenes.

I have read led needs a higher canopy temp as it has low radiant heat. But I have no personal experience. Forum guys seem to run 80-85.

For a regular grow I have read plants suffer at 85. My experience shows leaf stress as low as 78-80 with various hid lamps.
 
TerpyTyrone

TerpyTyrone

692
143
Unlessssss. ...... U use co2. Then it's over 85 er so. Thats what ive heard from reputable farmers
 
Scrogger2190

Scrogger2190

185
43
From my experience you run canopy temps around 75-85 and your ambient temps will be lower than that with hps because they heat your canopy up a lot more than led. So your ambient temp is closer to your canopy temp with led and that's why we run higher temps with LEDs. Ideally imo you want canopy temp to be as close as ambient temp but as far as temp for plant health I go by canopy temp not ambient temp
 
D

dabarino

218
43
Sounds like you need some more ventilation aimed at your hot spot like a fan blowing at it or and exhaust set up as close as possible
 
TerpyTyrone

TerpyTyrone

692
143
From the farmers I have asked, this is more than likely due to a light leak, in combo with strain likelyhood for hermies.
But the last go round it appeared becausr I let the coco dry a couole days. Like 7. While on vaca. Oh well. Gotta get it when I can. This is my last indoor for a while so I'm just letting her do whatever it is shes doing. She smells fire, but they arr very airy large, "foxtails" buds full of chromes. Maybe not FULL ,but smokeable.
-Ty
 
15411514597385714993506662407526
15411517371453124796847289081256
Top Bottom