Effects of higher night time temps than day time temps

THEit

Active Member
Hi everyone.

So the days are pretty hot where i live at the moment. I have an indoor garden mid flower and run it from 7pm to 7am as this is the only time i have a chance against the ambient heat combined with the heat from those 1000watt bulbs. Even with two medium size ACs and more industrial circulation and extraction fans than i have fingers it still hits 30 degrees Celsius some nights (day for plants). I then start switching off lights one by one till it gets to just under 28. Normally by 3am its cooled enough so that i can go full power on lights till 7am. During the day, when the plants sleep, it gets up to 28-31 celcius in there. With all the fans etc going.

Im just curious if anyone has any experience with night time temps matching or being higher than day time temps.

So far the plants look good. Theres a few that was very very slow to get going tho
 

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THEit

Active Member
Thank you. Thats interesting. So they're drinking more water due to higher perspiration (correct?) caused by high heat. Which in turn leads to more nutrients being absorbed because it's in the extra water.
I have noticed that they drink more and show slight burn on the tips on a lower ec than normal actually. Didn't connect it to the temps tho.
 

Roger A. Shrubber

Well-Known Member
warm temps at night and cooler temps in the day time make for short compact plants, they won't want to stretch much. that can be good or bad, depending on the strain and the circumstances. they have to stretch some or you'll lose a good bit of yield
 

THEit

Active Member
warm temps at night and cooler temps in the day time make for short compact plants, they won't want to stretch much. that can be good or bad, depending on the strain and the circumstances. they have to stretch some or you'll lose a good bit of yield
Oh they stretched. Didnt quite double in size but pretty close.
 

ubluntu

Active Member
Your night time is when the lights are off. The effects will be the same regardless of the sun.
Colder lights out temp: more stretch, less density, higher risk of mildew/rot.
 
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