Auto..Flowering 12/12 or 18/6

Rider101

Rider101

Well-Known Member
If your plants are true auto flowering they will start to flower under 18 hours of light.

Plants grow lager when they get 18 hours of light per day. The only reason to reduce the light from 18 to 12 is to get regular plants to flower.

So if you want larger yields then keep your lights at 18/6 for auto flowering plants.
 
hotrodharley

hotrodharley

Well-Known Member
“A LOOK AT 24 HOUR LIGHTING
As autoflowering plants do not rely on hours of light to tell them when to flower, they can be subjected to a 24- hours of light throughout their growth cycle. In fact, many growers believe 24 hours of light is crucial when growing autoflowering plants, as it may give them the best chance to grow bigger in the vegetative stage and then eventually flower accordingly.”

Same RQS link. But you do whatever.
 
Rider101

Rider101

Well-Known Member
hotrodharley said:
“A LOOK AT 24 HOUR LIGHTING
As autoflowering plants do not rely on hours of light to tell them when to flower, they can be subjected to a 24- hours of light throughout their growth cycle. In fact, many growers believe 24 hours of light is crucial when growing autoflowering plants, as it may give them the best chance to grow bigger in the vegetative stage and then eventually flower accordingly.”

Same RQS link. But you do whatever.
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LOL ok then, :clap: just answer one question for me if 24 hours is better then 18/6 why don't people veg at 24 hours rather then 18/6 like everyone does? In fact why don't you?

Legal commercial growers have tried and dismissed running lights 24 because the cost was greater then the benefit.

But hey they could be wrong just because these companies spend millions on R&D does not mean they know more about growing weed then someone who grows in his basement.

BTW plants do sleep even if the light is left on.
 
hotrodharley

hotrodharley

Well-Known Member
Rider101 said:
LOL ok then, :clap: just answer one question for me if 24 hours is better then 18/6 why don't people veg at 24 hours rather then 18/6 like everyone does? In fact why don't you?

Legal commercial growers have tried and dismissed running lights 24 because the cost was greater then the benefit.

But hey they could be wrong just because these companies spend millions on R&D does not mean they know more about growing weed then someone who grows in his basement.

BTW plants do sleep even if the light is left on.
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Electrical costs, bonehead. Lol. I’m sure professional growers will yield to your superior knowledge and experience. Contact breeders. Many obviously need guys like you.
 
Rider101

Rider101

Well-Known Member
LOL lets see your grow buddy mines on file.

So you can't answer my question as to why everyone runs 18/6 rather then 24 during veg?
 
xtsho

xtsho

Well-Known Member
Frankiedlmnop said:
Yeah I just did not know because the Harvest time was way off then what does Seed bank said but it’s Probably my fault from running 18/6 now it took so long to start to Flower so I should just run the 24 u have any Results from 24 or 20/4
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Ignore what the seed bank says as far as flowering times. Nine times out of ten they are much shorter than what it actually takes. The plants don't know they're supposed to finish when the seed bank says. They'll finish when they finish.


Rider101 said:
LOL lets see your grow buddy mines on file.

So you can't answer my question as to why everyone runs 18/6 rather then 24 during veg?
Click to expand...

I often run 24/7 in veg. I have never noticed any ill effects running 24 instead of 18/6. I'm not trying to get in the middle of an argument. Just stating what I do and my grows turn out great and plants are happy and healthy.
 
Rider101

Rider101

Well-Known Member
xtsho said:
Ignore what the seed bank says as far as flowering times. Nine times out of ten they are much shorter than what it actually takes. The plants don't know they're supposed to finish when the seed bank says. They'll finish when they finish.





I often run 24/7 in veg. I have never noticed any ill effects running 24 instead of 18/6. I'm not trying to get in the middle of an argument. Just stating what I do and my grows turn out great and plants are happy and healthy.
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Running the lights for 24 is not going to have any ill effects plants can sleep just fine with the lights on, its about if the extra light is worth the cost. Have you done side by side grows comparing the same clones at 18/6 vs 24 for size or growth improvements? Cannabis companies in Canada are spending millions on research and if there was a benefit to running the lights 24 they would. In fact if this was true for all plants all green houses would run their lights 24 if it made bigger tomatoes or whatever, faster and with greater profit.
 
Rider101

Rider101

Well-Known Member
Frankiedlmnop said:
Yeah I just did not know because the Harvest time was way off then what does Seed bank said but it’s Probably my fault from running 18/6 now it took so long to start to Flower so I should just run the 24 u have any Results from 24 or 20/4
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If there was a benefit to running lights 24 hours a day in veg or in auto flower then every grow manual would not tell you to veg at 18/6. The industry standard of 18/6 rather then 24 is there because of science not opinions.
 
xtsho

xtsho

Well-Known Member
Rider101 said:
Running the lights for 24 is not going to have any ill effects plants can sleep just fine with the lights on, its about if the extra light is worth the cost. Have you done side by side grows comparing the same clones at 18/6 vs 24 for size or growth improvements? Cannabis companies in Canada are spending millions on research and if there was a benefit to running the lights 24 they would. In fact if this was true for all plants all green houses would run their lights 24 if it made bigger tomatoes or whatever, faster and with greater profit.
Click to expand...

I haven't noticed any difference between 18/6 and 24/0. No I haven't done a side by side but I have a photographic memory so I know the results. :bigjoint:

It is mostly an electricity thing but since I veg under a 4 bulb T5 the electric savings would be negligible. I'm just a small hobby grower so electricity doesn't matter to me especially with the cheap power where I live. I'm vegging at 24/0 right now because I switched to it from 18/6 awhile back to reveg some clones I took in flower. The timer is on the wall behind my tent and I haven't moved it out to reset the timer. The only reason I posted was to spice up the thread. :mrgreen:

The end result is all that matters to me. I can get there with 18/6 or 24/0 in veg.

bongsmilie
 
Kingrow1

Kingrow1

Well-Known Member
Peeps ran 20/4 and only found very small differences to 24/0 and thus concluded it wasnt worth it (slightly more growth on 24/0), the plant still takes a rest period hence why not much difference was found - ive never noticed much myself except stretch is slightly less.

I ran my autos on 12/12 cause they were mixed with photos and didnt notice any extra or less yeild than photos. If autos yeilded more than photos with 18/6 upto 24/0 id hazard a guess near 90% here would be running autos.

I dont really jave the answers to autos and seems a grey area overall, love to get to the bottom of it sometime though:-)
 
Nutty sKunK

Nutty sKunK

Well-Known Member
20/4 is the way I like to go.

Sure a plant can do fine with 24hrs but doesn’t feel right to deprive it of some sort of rest.

Also plants can only use so much light in a day then after that it’s wasted resources.

Probably why some folk don’t see much difference when using artificial lights.
 
F

Frankiedlmnop

Member
Rider101 said:
Plants do not like 24 hours of light it has been tried with many different species. Sleep cycle is important even to p
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xtsho said:
Ignore what the seed bank says as far as flowering times. Nine times out of ten they are much shorter than what it actually takes. The plants don't know they're supposed to finish when the seed bank says. They'll finish when they finish.





I often run 24/7 in veg. I have never noticed any ill effects running 24 instead of 18/6. I'm not trying to get in the middle of an argument. Just stating what I do and my grows turn out great and plants are happy and healthy.
Click to expand...
Thanks
 
calvin.m16

calvin.m16

Well-Known Member
I ran my lights 24/7 and my plants turned out really bad. They were BIG BUDS of course but barely any trichomes vs 18/6 and that is experimenting with:
GrowersChoiceSeeds: Tangerine Dream, Critical Purple, Northern Lights & Gorilla Glue

I know that 24/7 intense lighting is not happening anywhere in the world for weeks on end and 18/6 is certainly the sweet spot in any situation period. Give them 6 hours dark time you're not benefiting from 24/7 and in my experience of 1 year Autos might be ready to harvest a few days sooner than if they were ran under 18/6. 24/7 plants suck..... In my experience.
 
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