Isn't it true that as thc oxidizes and cbn goes up that cbd goes up to in an ripe plant.
CBD does doe up in a, "ripe plant" BUT what most growers believe to be a "ripe plant" is actually an over-ripe plant. The fake couch-lock from increased levels of CBN has caused growers to believe what they actually got was increased levels of CBD. Glands most active in secretion (mature) are translucent in appearance, aged glands are yellow in appearance and senescent (old) glands are brown in color. Mature glands possessed the highest content of their major cannabinoid in both the fiber and drug strains. Senescent glands possessed low levels of cannabinoids.
I understand what your saying about the genes but I must ask how those genes came into play in the first place?
Both THC and CBD from from the same precursor, that being CBG. The biosyntheses of THC, cannabidiol (CBD), and cannabichromene (CBC) (or tetrahydrocannabivarin [THCV], cannabidivarin [CBDV], or cannabichromavarin [CBCV]) are controlled by a suite of three enzymes, each controlled by a single allele: T, D, and C, respectively. The three enzymes can likely use either propyl CBGV or pentyl CBG for the propyl and pentyl pathways, depending on which substrate is available. This hypothesis was verified by Flachowsky et al.. Continued research by de Meijer et al. has shown that CBD and THC biosynthesis are controlled by a pair of co-dominant alleles, which code for isoforms of the same synthase, each with a different specificity for converting the common precursor CBG into either CBD or THC.
The allele to produce CBD has been pretty much bred out of modern crosses resulting in less CBD being produced in glandular trichome heads and 'aging them,' allowing plants, and glandular trichome heads, to grow past the point of peak potency will not overcome the lack of the needed allele to produce increased levels of CBD and other cannabinoids will not transform into CBD with additional time/aging.
From my understanding that high thc production lowers cbd or cannabiniol and this is why we don't see this in early ripe plants but as thc levels deminish and cbn rise that cbd production goes up as do the other cannabinoids.
While I am sure you meant what you said a bit different than it read, it is not increased production of THC that lowers CBD production but instead the breeding out of the allele that would create higher levels of CBD, but that would then come at the cost of lower levels of THC since more CBG would be more equally 'split' between the production of both cannabinoids.
With the missing allele, due to modern breeding, CBD cannot increase with age. The effects of the amount that is made will seem more 'potent' due to decreased levels of THC that has been lost when it oxidizes, but in the case of medicinal users they are not actually getting increased percentages/levels of CBD. That in combination of increased levels of CBN will make it appear there is more CBD, but CBN does not give the same effects and when it comes to medicinal users it does not have the same medicinal values.
And yes I do understand that this is no where near the levels Project cbd is going. Anyway just a question Good growing And enjoy Mr. Toad's wild ride...lol
For someone who just enjoys strains that are higher in CBD one that is claimed to be very high in CBD is Cannatonic from Resin Seeds. But what I think what we find ourselves dealing with when it comes to many breeder claims for cannabinoid levels is something that they can get away with due to there being no truth in advertising laws about cannabis strains. Not that they all flat out lie, but instead because there are different ways to determine cannabinoid percentages and they will pick and choose between the two the percentage figures that best suit their marketing needs.
Check out the claims for Cannatonic, THC and CBD percentages, and then check out the test analysis for it from an independent lab.
Cannatonic Feminised Resin Seeds
The best of both worlds, a phenotype selected from the hybrid corss between a female MK Ultra(F1) & the all time famous G13 Haze male. Grows like an Indica, smells like a Sativa and renders you... Cannatonic! Genetics: MK-Ultra x G13 Haze Indica/Sativa: 50/50 THC: 20-25% FLOWERING: Interior 9-10 weeks / Exterior October Yield: Interior 500 gr per m2 / Exterior 250-400 gr per plant
The strain is advertised as having; "THC: 20-25%" but the test results below seem to say something different.
CBD and THC levels were very close to being equal. The test results for THC were no where near the 20% to 25% breeder claims.
What we seem to be faced with is somewhat similar in how the test procedure for THC percentage levels in the 60's and the 70's was later changed resulting in what appeared to be a major increase in THC percentages when in fact what actually changed was what was factored out of the former testing procedure resulting in much higher THC percentages.
There are both calculated active cannabinoid tests and relative ratio cannabinoid tests. Here is an example of how they results differ.
Super Lemon Haze:
Calculated Active Cannabinoids
CBD:
0.63%
CBN:
0.27%
THC:
23.98%
CBC:
0%
THCV:
0%
Relative Ratio Cannabinoids
CBD:
0.25
CBN:
0.11
THC:
9.64
CBC:
0
THCV:
0
Kushage is a strain known to be high in CBD.
Calculated Active Cannabinoids
CBD:
9.55%
CBN:
0.13%
THC:
4%
CBC:
0%
THCV:
0%
Relative Ratio Cannabinoids
CBD:
6.98
CBN:
0.1
THC:
2.92
CBC:
0
THCV:
0
Here is an example of an 'extract' called Purple Cotton.
Calculated Active Cannabinoids
CBD:
2.57%
CBN:
0.84%
THC:
67.23%
CBC:
0%
THCV:
0%
Relative Ratio Cannabinoids
CBD:
0.36
CBN:
0.12
THC:
9.52
CBC:
0
THCV:
0
Now all that is not about the relationship between THC and CBD alone but is is evidence of varying sets of test results and how it is clear that breeders will pick and choose the results from one type of test or comparative or another to better market their strain by making it sound or appear to be more whats someone might want to spend their money on.
Cannatonic claims 20% to 25% THC and while it is not listed above it is claimed to be have high levels of CBD, some claims simply state equal or nearly equal levels of THC and CBD, which could lead someone to believe the CBD percentage would be between s0% and 25% but the test results were evidently from a relative ratios test and the CBD and THC percentages came in at 6.92% and 6.2% in one test and at 6.58% and 5.9% in another.
Based on that Cannatonic can be claimed to possess practically or nearly percentages of THC and CBD, but Resin Seeds will still advertise 20% to 25% THC rather than the practically or nearly equal 6.2% and 5.9% for THC that would then make the claims of practically or nearly equal percentages of THC and CBD accurate.
You can also see why Super Lemon Haze uses the calculated active cannabinoids figure for THC percentages because 23.98% sounds a whole lot more impressive than the relative ratios cannabinoids THC percentage of 9.64%
Between what is not understood by some or not fully understood by some or not understood at all by some, and the leeway in marketing/advertising claims that exists, going all the way back to the altering of the testing procedure for THC percentages, most, if not all, percentages given for marketing and advertising purposes are pretty much highly questionable and at best only slightly reliable.
Sorry for what might seem like a great deal of extraneous but a good sativa gets my mind thinking and it begins a chain thought process where one thing is linked to another and then to another .... I guess in a way like a bunch of drunk and stoned frat guys can start rating girls tits and before the end of the conversation they have worked in cars and motorcycles and the existence or non-existence of a higher being.
As the ramblings pour out they all seem to make sense and all seem connected at the time ... though to someone listening in, or later reading, things might appear to be rather disconnected.