How Much Does Co2 Speed Up Flowering Time?

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Sr. Greensea

Member
and yes its not a "bottle of magic" but if u have everything else in order its like steriods. so i guess mayb u could call it magic. i have a burner and it costs less than $30 a month for a 700sqft room. i would never not use co2 again. best investment after light and genetics.
 
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Sr. Greensea

Member
flushings for toilets or lockout. plants feed less towards death, but still feed, so lower the ec, dont starve n stress them for the last week
 
Grow mo

Grow mo

Active Member
FootClan said:
why would anyone wanna reduce yield to save a week? your going to grow and care for these plants for months and then a week before they are ready cut them early and waste all that time you put in it...lol all to save 7 days? lol seems silly to even say it outloud
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cause weeks add up, more bud adds up, more money adds up.. a one week advantage helps people like me that want to get as much out of there red card before we gotta pay money again to get it back for another year. gotta think long term
 
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budleydoright

Well-Known Member
Yes, it absolutely can make make things finish faster. If you run your room hot 85f and 1500ppm you'll increase the metabolic rate of the plant. It will consume more of everything which results in an increase of plant mass and has easily shaved 1 week off of an 8 week strain consistently.

You'll notice that many people post theory and opinion not first hand results.

Lots of myths also. Humans can be exposed to well over 10,000 ppm for extended periods in the work place.
 
potroast

potroast

Uses the Rollitup profile
Yeah, there are a lot of myths ... like the one about plants being ripe after only 7 weeks. :bigjoint:


:mrgreen:
 
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budleydoright

Well-Known Member
potroast said:
Yeah, there are a lot of myths ... like the one about plants being ripe after only 7 weeks. :bigjoint:


:mrgreen:
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3 cycles already have been done 1 week earlier than without co2. There's also research that supports this. this is at about 70% cloudy trichs.

So this hasn't been your experience in your CEA room?
 
Gamberro

Gamberro

Well-Known Member
I can't yet justify installing CO2, the only setups I see cost almost $1,000, and even if they do add 1/3 to my yield (which sounds more than a little exaggerated), it just doesn't justify the cost.
 
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budleydoright

Well-Known Member
It's not for everybody and isn't required provided you can provide plenty of air flow in your space. I use co2 so I can have my setup completely sealed off from the rest of my building. I couldn't add ventalation to this space or penetrate the walls in any way. So I had to either go sealed or not at all.

Plant growth in my co2 enriched space is 1.5-2X the rate of my non enriched space. All things are not equal though. I do an 8 week strain and have shaved a week off of the cycle.

there is alot of research done on growing with Co2 that support many of the claims.
 
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budleydoright

Well-Known Member
I have run right up to the end 2X and lowered it to atmospheric the last 2 weeks last go round after reading a convincing argument against running it. Don't think I'll do it again. Too many variables to say it did or didn't make a difference but my gut tells me that it's better all the way through. the guys I bought my co2 equipment wouldn't comment until they could do some research on it. I'm hoping they can provide me with some facts about this.
 
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Pimpski420

Member
So I just added co2 to my room and it has totally changed one of my strains. Doesnt even look the same. Its 3x the size. But its taking forever to finish. It has HUGE buds on it that arent finishing. Doesnt even smell the same at the moment. Crazy!
 
hyroot

hyroot

Well-Known Member
When you increase co2 levels. You need to increase o2 levels for respiration. Via air exchange. If co2 levels are higher than o2 levels. That can have a negative effect. There is is more oxygen in our air the co2... plants transpire more in the day than when they sleep.

Adding 660 deep red and 730 far red will make leaves grow larger and more broad. Larger leaves transpire at a faster rate.

Co2 does increase the photosynyhesis rate in turn increase terpenes, sugars, cannabinoids etc....

I don't add co2 with a tank or burner. My intake is constantly running. My exhaust runs for 5 min every 30 min. So. I have constant co2 and o2 coming in.

Ghetto adding co2. Candle. Or any Flame. For every oxygen molecule fire uses, it replaces it with a co2 molecule. So you don't necassarily need a propane burner.
 
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Pimpski420

Member
Guess I will Wait an see what happens. Thats good info to know. I hope to see some major changes in it real soon! It should be finishing up and it looks like its two weeks away!
 
Rocurse

Rocurse

Active Member
Ronjohn7779 said:
It doesn't speed up dick. It just increase yields and may increase potency. In theory it may speed up vegging times though since the plant is getting larger faster.
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Co2 absolutely speeds up the metabolic rate! And it absolutely will speed, or shorten is a better word, the flowering period, if the wattage/lumens are high enough. Ie. 4000 watts and up! Skip the gross Gravity, and increase your lumens, and DEFINATELY add O2. Science doesn't lie!
 
blacksun

blacksun

New Member
Rocurse said:
it absolutely will speed, or shorten is a better word, the flowering period, if the wattage/lumens are high enough. Ie. 4000 watts and up! Skip the gross Gravity, and increase your lumens, and DEFINATELY add O2. Science doesn't lie!
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Account created February 2012, one and only post is to necro this thread to say something all the experienced growers know isn't true.

You didn't even tell us how much you think co2 speeds up flowering...*snicker*. On top of that you think co2 "DEFINATELY" only speeds up flowering IF you have 4000 watts and up.

How can anyone argue with that logic? :roll:



I do agree with skipping the gravity though.
 
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ricky6991

Well-Known Member
I know how to speed up your harvest date...

defoliate all those useless fan leafs so all the buds can photosynthesize better ;)

seriously though, one time someone defoliated 2 of my plants an the buds stopped growing and just mature. It was prob my best day ever because i spent 8 weeks of veg time and then 4 weeks of flower before the massacre took place and the final 4 weeks were wasted...


on another note for co2... i have always used co2 sealed rooms at 1450 all day/night with no bad signs and all my leaves even the snaller ones stand up reaching for light all day. I have 8kw im my room though.
 
hammer21

hammer21

Well-Known Member
I run c02 from veg to flower in a sealed room and growth is a lot faster. Plants breath in c02 and exhale 02 without plants making the air we need we would die. So no you do not need to add 02 to your room the plants are doing it. Run my c02 at 1200 to 1400 PPMs. One more thing. Do not remove any leaves the plant needs them.
 
dannyboy602

dannyboy602

Well-Known Member
hyroot said:
When you increase co2 levels. You need to increase o2 levels for respiration. Via air exchange. If co2 levels are higher than o2 levels. That can have a negative effect. There is is more oxygen in our air the co2... plants transpire more in the day than when they sleep.

Adding 660 deep red and 730 far red will make leaves grow larger and more broad. Larger leaves transpire at a faster rate.

Co2 does increase the photosynyhesis rate in turn increase terpenes, sugars, cannabinoids etc....

I don't add co2 with a tank or burner. My intake is constantly running. My exhaust runs for 5 min every 30 min. So. I have constant co2 and o2 coming in.

Ghetto adding co2. Candle. Or any Flame. For every oxygen molecule fire uses, it replaces it with a co2 molecule. So you don't necassarily need a propane burner.
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thats because he needs a co2 generator and a propane tank to fuel it.

ricky6991 said:
I know how to speed up your harvest date...

defoliate all those useless fan leafs so all the buds can photosynthesize better ;)

seriously though, one time someone defoliated 2 of my plants an the buds stopped growing and just mature. It was prob my best day ever because i spent 8 weeks of veg time and then 4 weeks of flower before the massacre took place and the final 4 weeks were wasted...


on another note for co2... i have always used co2 sealed rooms at 1450 all day/night with no bad signs and all my leaves even the snaller ones stand up reaching for light all day. I have 8kw im my room though.
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no wonder your harvest dates get sped up. After removing all the fan leaves the only thing left for your plants to do is die. It's funny that you introduce co2 so your plants can photosynthesize better but then you remove the very leaves that are supposed to use it. Can you see the irony in that?
 
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