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Outdoor vs Indoor ~ THC%

chef

Gene Mangler
Veteran
My lab tests show 2-3% less thc in outdoor, compared to indoor.

Anyone else have any results from the same lab?

I would have lost this bet bigtime! :blackeye:
 

jayjayfrank

Member
Veteran
less thc but what about other cannabinoid like cbd cbn etc ?

for some people 14% thc is fine as long as it also has 10% cbd....

also have you tried testing thc of a revegged plant? higher or lower than first flowers?
 

chef

Gene Mangler
Veteran
very slight increase in CBD, 1.1 to 1.3 I believe? need more data to make a call.

I avoid reveg like the plague lol

I'll have mass data by end of the year.
Already have some from different harvest windows too, interesting stuff & also not what I would have guessed.
 

ChaosCatalunya

5.2 club is now 8.1 club...
Veteran
"Already have some from different harvest windows too, interesting stuff & also not what I would have guessed."

Do please tell...


I have grown the same clones, strains out and in, a good outdoor run can be stronger, a little less obviously aromatic, but somehow has some extra subtleties. Speaking to a club buyer who sees a lot of buds, he says you can tell OD in an instant, it looks very rough under magnification compared to Indoor, glands fuzzed all over the shop compared to the perfect crystal ships you see from Indoor.

This got me wondering, I now suspect that the "bad" days, of wind, rain, are harming the OD weed, but that fundamentally, that it makes better bud under the Sun, if conditions are good. This also explains [to me] the perceived variations in crops, year to year, down to conditions.

Then I see Tom Hill and Friends in Cali getting into the Light Dep thing, here it would mean finishing buds in perfect conditions with 3x the light .. in Summer vs Autumn... so I am off shopping for blackout cloth for just these reasons. Also, I am going to try and pull off an in/out crop, she stays indoors in shitty weather, but the table wheels outside for the warm sunny days.

chef is right about the CBD, Sunlight does not send that sky high, it is rare genetics.... Breeders developing recreational marijuana have not selected plants that have lots of CBD for generations.
 

PuReKnOwLeDgE

Licensed Grower
ICMag Donor
Veteran
Well doesn't the exposure to powerful sunlight lower thc values? Also all the exposure to the elements, like rain and high winds.
 

ChaosCatalunya

5.2 club is now 8.1 club...
Veteran
Well doesn't the exposure to powerful sunlight lower thc values? Also all the exposure to the elements, like rain and high winds.

Well... I came to IC looking for answers to these kinds of questions..

So far, AFAIK, there is a theory that the higher UV levels in Sunlight gives higher THC levels. Years ago there was accepted "hippie theory" that Hashes and Weed from higher Altitudes was more potent... Less atmosphere to travel through. Cocoa plants will only grow at higher altitudes and the highest grown stuff in Peru is meant to be stronger than the lower altitude grown Colombian stuff.

Rain and high winds will lower the quality IMO, too much and it will be below the indoor strength... as I understand it.

Some of the Cali people who ran Light Dep gardens this year should know a lot more about this ..........
 

chef

Gene Mangler
Veteran
I was basing my expectation of higher outdoor %'s on the old UV theory. :D
Had wind but no rain the last 2 years, high n dry volcanic desert!

Need to get all my data organized & will post some up soon.
 

chef

Gene Mangler
Veteran
In a nutshell...
THC & CBD closely follow each other, highest being aprox 2 weeks early in a normal harvest window.
Late/full-term window showing a decrease in THC & CBD, with an increase in CBN.
 
B

BasementGrower

i would think that outdoor could introduce different terpenes.. which inturn will change the high from outdoor to indoor.. ? anyone have any testing to do with terpeneS? or just thc cbn and cbd?
 

homebrew420

Member
I would bet anything it is more of enviromental stresses that would lower the levels. UV is said to breakdown THC into Cbn correct? Yield is more, correct?, by greater than 2-3% I am sure. Be interested to see the rest of the data. Thanks for the posting Chef

Peace
 
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