I would be interested in seeing data on any strain, grown under any conditions. I would even like to see how much light, strain, etc affect the THC or THCA levels.
THC potency vs day of flowering: any data?
- Thread starter beepy1
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- lab testing potency terpenes thc
ttystikk
Well-Known Member
The best advice I can give you is to grow and gain firsthand experience.
LinguaPeel
Well-Known Member
Data shmaita. Just strip the oils and sugars out of the plant with the chemmies and you have more thc, by relative weight comparison. Then dehydrate the shit so it's even higher. Pick the right lab and you got top shelf grade AAAA++++ bullshit. Then sell the end user a fuckin brovida pack when he complains.. Fixes everything.
Bullshit, but it'll sell, so. And if it doesn't, advertise a 10% discount. The dumbasses buying weed from dispensaries LOOOOVE deals. Deals are even better than pointless numerics!
Don't put so much thought into growing a weed for druggies. Just spray it with garlic and turn it into wax. No such thing as bad wax according to the dumbasses buying the shit.
Bullshit, but it'll sell, so. And if it doesn't, advertise a 10% discount. The dumbasses buying weed from dispensaries LOOOOVE deals. Deals are even better than pointless numerics!
Don't put so much thought into growing a weed for druggies. Just spray it with garlic and turn it into wax. No such thing as bad wax according to the dumbasses buying the shit.
ttystikk
Well-Known Member
This question was asked for personal knowledge, not so I can sell anything to "druggies".
Gquebed
Well-Known Member
In my experience in having 3 strains tested there is very little difference in thc potency from the day trichs first appear to harvest time. It is measured in 10s of a percent...
IE: my northern lights #5 tested at 17.4% 20 days after flip (around the time trichs first appear and 17.7% at 65 days after flip when i chopped.
IE: my northern lights #5 tested at 17.4% 20 days after flip (around the time trichs first appear and 17.7% at 65 days after flip when i chopped.
Thank you for actually answering my question! That is very interesting. Do you happen to have similar data for terpenes? I wonder if terpene concentration increases during the last few weeks of flowering, or if it is similar to THCA or THC.
Which terpenes? There are quite a few and they vary. I'm curious, do you grow?
Gquebed
Well-Known Member
No... sorry... no info on terpenes...
Thundercat
Well-Known Member
Very interesting data were these buds you were having tested or leaves? So if the plants have the same levels of thc at the beginning of flower as the end what is the point letting them mature at all? Are the differences in high only from terpenes and other cannabinoids, and not THC potancy at all?
Gquebed
Well-Known Member
They were flowers. Letting them mature is all about weight i would imagine?? I dont know.
The reason i tested the 20 day old flowers was because i pulled one to dry and smoke just to see if itd have any effect. And wow... did it ever. Surprised me. So the next run of the same strain i plucked some flowers soon as they showed and had it lab tested. Then i tested flowers from the same plant after harvest 45 days later. Virtually no difference in potency. But there was in taste. Maybe terpenes need to mature or ripen? I dunno...
Any of them. Yes, I do grow. The paper fires earlier in this thread showed measurements on mono and sesquiterpenes at various stages of the plant life cycle. Why are you acting as if I am asking a foolish question? It seems some scientists spent a lot of money trying to answer questions similar to mine. Are they foolish too?
Dr. Who
Well-Known Member
#1: THC is measured by VOLUME! Never by weight....
This right here tells me you have little experience growing.
#2: THC production is like a wave. It always has some but in bloom. The production rises and then falls back off....
There is only 1 actual way to apply that wave to manipulate potency... Available mineral content of several compounds in the media/feed.
These must remain a constant and not increase by feeding in solid media's (no build up's). Hydro will remain the needed constant by proper res care.
Soils should be built to contain the proper compounds, to proper levels before use. You do not supplement with feed solutions, unless you really, really know what your doing. Build up problems will screw the plant, and you.
There are threads on this site discussing the mineral supplementing, both ways. Liquid supplementing is way easy to fuck up. VERY small amounts that can only be measured by weight are used and at varying times in the run...
Mel Frank, in one of his books. Goes directly into this thing. What he didn't know at the time? His formula did more for increasing CBD then THC, AND apply a change in compound ratios....reverses that to THC increase over CBD...
Any idea that you harvest early, during peak production times....Epic fail!
Dr. Who
Well-Known Member
Terp production is again, effected by chemical compounds available to the plant. S (sulfur) is what you want to play with here. Thing is, the form, or type of S compound. Can effect the flavor and scent profiles, to the point of shifting them away from strain normal.
Terps and THC content can be greatly effected by trichome production. Increase that and.......
Here comes S compounds again!
Your asking for some pretty advanced stuff here bud..... Look around the site, use the search feature and take a peek in the "Do it yourself" section too.
Terps and THC content can be greatly effected by trichome production. Increase that and.......
Here comes S compounds again!
Your asking for some pretty advanced stuff here bud..... Look around the site, use the search feature and take a peek in the "Do it yourself" section too.
Kingrow1
Well-Known Member
Is that a state of the art globally recognized peer reviewed papaer or just somthing some low funded small uni or lab published for a few bucks that went no where to any real scientific research or organic chemistry but appealed to stoners who.like to read stuff thus fuelling their market cause i cant tell or see any people recognizing it but that site isnt the best for my phone?
Dr. Who
Well-Known Member
You don't even know how to answer a quote. Much less understand what you found.
The ONLY times THC concentrations are measured and used, by mass concentration.......Is in legal court issues and Federal/State laws that deal with intoxication! AND by some scientific studies. BTW, these studies are generally NOT done in the US!
YOU find me 1, any 1 strain listing THC concentrations by weight!
ALL plant based THC concentrations are measured by %! This is volumetric measuring... In college, measuring plant material contents of about anything....We used volume by %.... In the paper listed earlier. Plant material is treated and the refined compound is listed by weight per gram of material tested. That should STILL be converted to volume to supply plant content!
You should have noted right off the bat that they are measuring only a small sample of only part of the plant....YOU DIDN'T ASK FOR LOCATION CONTENT!
Now then. I TOLD you what effects THC concentrations and how to manipulate them... The biochemistry of the plant and it's being effected by chemical compounds in the root environment..
By reading your original question. One can easily take it to mean that you want to know how to manipulate concentrations!
I answered that!
Why do the kids always fuck with the old men?
Any lab YOU would use to measure this. Would supply VOLUMETRIC answers!
I told you it's a wave form in the overall view. I'll add that it differs for different strains. I told you that environmental conditions effect this.
As for terp development? That too is directly related to environmental conditions AND tric developement!
cannabineer
Ursus marijanus
The bolded surprises me. Can you show me a link?
Thundercat
Well-Known Member
Your a smarmy one aren't you. There are many labs that do testing on Cannabis, and many have test results posted on their websites, go check them out. You will notice drastic inconsistencies even among tests of the same strain. That is because of the variables that we tried to express to you, but you didn't want to hear. Strain differences, phenotype differences, and environment. None of us said we knew how much of anything was in our plants, we said it changes between plants and that we hadn't seen the data your looking for.
I would love to see a comprehensive test done to get the data you want and more. I'm just explaining why I don't think its been done to the scale your looking for. Maybe you could do it? Grow out 100 plants each of 100 strains in a controlled environment and gather the data along the way. Really it would only be a drop in the bucket as far as data goes, but I believe it could be a large enough sample group to see if any obvious patterns emerged.
Obviously there is plenty of things we don't know. Gqubed's test results were surprising to me, and seem to warrant more research.
Dr. Who
Well-Known Member
Link to what?
It's simple...The way our industry posts THC concentrations is always by volume.
Punch in any strain request on Google.. Look for THC concentrations......What do you get?
A percentage!
Send a sample to a testing lab. What do you get for THC concentrations and Terp concentrations?
A percentage!
These are broken down by exactly what THC compound it is too. Same for terps.
Done by gas-chrome.
Percent = VOLUME
When doing lab work in college. No matter what we were focusing on. Was by far, measured by volume.
