Cold dumping

ҖҗlegilizeitҗҖ

ҖҗlegilizeitҗҖ

Well-Known Member
Does anyone use cold dumping early in the morning to reduce internodal stretching?

How it works is when the night and day temps are really close, plants stretch less.
It can go even farther, from my research online, when the night actually becomes warmer than the day, plants really grow tight node spacing.

Apparently you can trick the plants into thinking this is the case by "cold dumping" right as the lights are turning on.
I am playing around with turning the AC on 45 min before lights on, and turning off 30 minutes after they are on. Hopefully dropping the temps from 73° (night temp) to 63°. Then after AC turns off it will rise to the 83° day temp.

I am about at day 11 flower and could like to have the tightest buds possible. I think this could definitely help produce the best possible product.

hightimes.com

Grow Hack: Day and Night Growroom Temperatures | High Times

When growing indoors it’s important to realize the comprehensive control the environment you create has over your cannabis garden. New growers often
hightimes.com hightimes.com
 
HydroKid239

HydroKid239

Well-Known Member
ÒÒlegilizeitÒÒ said:
Does anyone use cold dumping early in the morning to reduce internodal stretching?

How it works is when the night and day temps are really close, plants stretch less.
It can go even farther, from my research online, when the night actually becomes warmer than the day, plants really grow tight node spacing.

Apparently you can trick the plants into thinking this is the case by "cold dumping" right as the lights are turning on.
I am playing around with turning the AC on 45 min before lights on, and turning off 30 minutes after they are on. Hopefully dropping the temps from 73° (night temp) to 63°. Then after AC turns off it will rise to the 83° day temp.

I am about at day 11 flower and could like to have the tightest buds possible. I think this could definitely help produce the best possible product.

hightimes.com

Grow Hack: Day and Night Growroom Temperatures | High Times

When growing indoors it’s important to realize the comprehensive control the environment you create has over your cannabis garden. New growers often
hightimes.com hightimes.com
Click to expand...
I've never looked into smaller node spacing after I started to use cfl at close range from see til transplant from the cup. Never got as far as to discover that article tho. I'll give it a read. If it's on high times.. it made sense at some point I'm sure lol
 
mistergrafik

mistergrafik

Well-Known Member
High(er) night temps may lead to droopy leaves in lights on. My theory is over active rootz having a party in the warm. Opposite when cold.

the thing u look to control is hormone called Gibberellins.

“Gibberellins are produced in greater mass when the plant is exposed to cold temperatures. They stimulate cell elongation, breaking and budding, seedless fruits, and seed germination. “

I’ve seen some cool things recently with temperature control in nights and light manipulation so I say go 4 it..

I had problems running lights at night and dark during the day to reduce AC ( this made my temps really closer) cost but probably was just me bein a nub
 
Last edited:
jondamon

jondamon

Well-Known Member
ÒÒlegilizeitÒÒ said:
Does anyone use cold dumping early in the morning to reduce internodal stretching?

How it works is when the night and day temps are really close, plants stretch less.
It can go even farther, from my research online, when the night actually becomes warmer than the day, plants really grow tight node spacing.

Apparently you can trick the plants into thinking this is the case by "cold dumping" right as the lights are turning on.
I am playing around with turning the AC on 45 min before lights on, and turning off 30 minutes after they are on. Hopefully dropping the temps from 73° (night temp) to 63°. Then after AC turns off it will rise to the 83° day temp.

I am about at day 11 flower and could like to have the tightest buds possible. I think this could definitely help produce the best possible product.

hightimes.com

Grow Hack: Day and Night Growroom Temperatures | High Times

When growing indoors it’s important to realize the comprehensive control the environment you create has over your cannabis garden. New growers often
hightimes.com hightimes.com
Click to expand...

I read an article about this years ago in URBAN GARDEN MAGAZINE.

it will work but the idea was to create the smallest gap between day and night temps to help reduce internodal distance.

I’ll take a read of the article when I can and see if there is much difference between what I read 10 years ago versus this.
 
Pacoson71

Pacoson71

Well-Known Member
My DWC day temp and night temp is ambient 68F LED makes it 72 at canopy.
4 seeds same strain and each pot did its own height and spacing.

Basically, nothing to report here.....
 
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