Sealed room plants off gassing ethylene and causing issues

ChrispyCritter

Well-Known Member
I have an environmental controller that runs my co2 temp and rh and I need to see if I have a max temp I can set and I will set it. Great advice. Also does co 2 inhibit ripening? I've always use it until the end but this run I've used lower levels. Even now in flower im @ 1200 ppm instead of the usual 1500 I always ran from veg til harvest. Sealed room here. I've n ever exhausted room at any time. Thanks for everyone's input.
 

Sofa King Smoooth

Well-Known Member
No, not much at all...Really
Now a tropical plant - that's better. More closer care related... I like to tell newbies to learn to grow an African Violet. If you can get that to bloom,,your now ready to run cannabis without much trouble at all.
That is an interesting statement. My grandma must have had at least 30 African Violets. Her favorite. Seemed like they were always in bloom in her house. Wish i had paid more attention to her ways.

Sorry for the side track. Great memories.
 

Castrau5

Well-Known Member
No, not much at all...Really
Now a tropical plant - that's better. More closer care related... I like to tell newbies to learn to grow an African Violet. If you can get that to bloom,,your now ready to run cannabis without much trouble at all.



Oh good for you.... I put my first seed to soil at 15. That's 46 years here.

So after reading up to the end this mourning. I understand how 15lbs would make a dif.... But that's a lot of material for that sized room, and vegging.
Kinda strange you would dry in your veg room. My Veg rooms are warmer and more humid then the bloom rooms. In fact, the bloom rooms are about perfect to dry it in. Low 70's and 50% RH on average.

You didn't need to ditch your burner. Simply clean or replace the nozzles.

You don't gas the veg room do you? Not very cost effective, if you math it out. In fact I run stand alone buildings. They are set up to run gas but, after doing some test runs. I found it's actually more cost effective to NOT gas... Go figure. (I can run rotation vs fill it and run a room - This keeps my patients in material much better. It also allows for a broad selection of strains for them too.)

You do shut the gas down early so the plants can ripen,,,correct?

Now, back to your area and it being "sealed" for gassing.....Now you do know you still have to turn the air over in those rooms,,,right?
Not like normal but, it works much better with those high 80"s temps and high RH in the upper 70's,
To use an environmental controller.

Set your high temp limit and the high RH limit and as the area hits that. It shuts down the gas, turns on the exhaust and cooling system. When the system gets the temps and RH down to it's programmed start point. It shuts down the exhaust and cooling. Turns on the gas ans starts the whole thing over again.

This is the most effective way to run gas in a "sealed" area!

Naturally at night everything shuts down as far as the gassing goes. So you then do a long exhaust to rid the high RH from the area and run cooling if need be to do about a 10 - 15 degree drop in temps for the night right?

The plant uses that temp swing in it's growth patterns. I say you have to have it, to grow for potentials.

At any rate, you worded your first post in the thread like you were looking for help. Not like you were giving information..

You ARE correct about the ethylene gas !!

Down the road man....
I use my veg room for drying so my veg plants can be in the flowering room spread out under the scrog net and when the nets get full I switch to 12/12. If I dried in my flower room that would delay my next crop by 2 weeks.

I still have my burner but don't use it. Tanks are way cheaper in my area. Pay $5 for a 20lb tank refill and that last me about the same time as a propane tank did. Plus no heat I gotta cool this way.

I think I'm keeping my co2 to high and for too long. I'm running 1200ppm up till week 8 then only cut back to 1000 for flush week. Should prolly cut co2 down in week 7
 

Dr. Who

Well-Known Member
I think I'm keeping my co2 to high and for too long. I'm running 1200ppm up till week 8 then only cut back to 1000 for flush week. Should prolly cut co2 down in week 7
Oh yeah, The 1200ppm is right at about the light intensity limits to start with.
You should be shutting the gas completely off with at least 2 weeks till harvest. This will get you a better, more even, positive finish too.

I run LONG, longer then most. Don't get sucked in by any breeders report of X amount of "days" run time.
Been my rule of thumb for decades. "Add 2 weeks to all time estimates"....

"FLUSH"????? What ever for? "Flushing" removes nothing from the plant! The "Fade" doesn't really work either. You starve your plant with it being in the most important stage - the bulking phase. So you stop feeding and the plant feeds off it's self.
You see the problem with that is the plant takes the nutrition from the roots first, then leaves. It then moves that nutrition to right where your trying to remove it from - THE BUDS...... Your only shooting yourself in the foot by doing either.

However, I do simply use water for the last 3-4 days. Not making a real difference, and your saving a few coins on nutrients.
Now that's for synthetic runs. The bulk of my work is organic - water only soils....

So to make your product burn and taste the best. CURE it properly!
 

Dr. Who

Well-Known Member
That is an interesting statement. My grandma must have had at least 30 African Violets. Her favorite. Seemed like they were always in bloom in her house. Wish i had paid more attention to her ways.

Sorry for the side track. Great memories.
It's a good plant for teaching all aspects of growing.
Has to have the proper soil, it's pH fussy, feed fussy,Temp and RH needs to be watched and you have to have her in balance to bloom her.

No problem, My Dad's sister used to have tons of them. They had the farm next to ours. I own both now... I miss my Dad, Aunt Margret and Uncle Ed too.

GREAT memories it is!
 

inventel

Active Member
I've been growing for 10 years now and 6+ in sealed rooms only having issues till I moved to my new place and started drying in basically the same room as my living plants.

It's gone on for 8 crops in a row. If your plants are big it doesn't affect um as much but if you have 1 gallon small pots like this round it's really affected them.

After every round I'd try and change something to fix the problem. I got rid of the co2 burner for tanks, i watch my nutrients, it's not light/ environment shock. I fixed any of those issues and everytime I harvest I get the same the results. Sick plants.

In my gut from experience it felt like the were poisoned. Within 72hrs of harvest my perfect looking veg plants showing ZERO deficiency look like the pictures above.

As a grower it feels helpless. I've tried, flushing, more nutes, less nutes, yoda yoda and nothing has worked.

damn you ETHYLENE
damn i got the same problem, 4 grows always sick , ro water, good temps , good Rh, good led light and damn It why in veg always sick and deficient.

I made another new room without co2 without ventilation but next to the exit of the site and awarded healthy plants without deficiencies with the same water and light but without co2 and with passive ventilation.

This problem had been trying things for more than 1 year without knowing what to do. I will try to use a tank and ventilation at night, thanks for this post it has helped me a lot
 
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