[belivitez]

How you turn thc to cbn?

[oldchuck]

Originally Posted by belivitez

How you turn thc to cbn?

Time, heat, and light will do it just like decarbing but apparently you can also turn CBG into either THC or CBD. The chemistry is over my head.

[socioecologist]

Originally Posted by oldchuck

Time, heat, and light will do it just like decarbing but apparently you can also turn CBG into either THC or CBD. The chemistry is over my head.

FWIW, it's way easier to turn CBD into THC than CBG to THC. Plus, CBG is pretty rare relative to THC. I'm sure there are others working on this, but, at least publicly, there are only two groups with CBG-rich, high cannabinoid plants.

THC doesn't like to turn to CBN without a catalyst. Peroxide is great.

https://www.google.com/patents/WO2014159688A1?cl=en

[oldchuck]

Then why was CBN the first cannabinoid discovered, back in the 1890s. Took another 75 years to discover THC and more for CBD? And, isn't CBG the precursor of both THC and CBD so seems to me an early harvest would net a lot of CBG before it changed to one or the other? I probably don't know what I'm talking about.

[socioecologist]

Originally Posted by oldchuck

Then why was CBN the first cannabinoid discovered, back in the 1890s. Took another 75 years to discover THC and more for CBD? And, isn't CBG the precursor of both THC and CBD so seems to me an early harvest would net a lot of CBG before it changed to one or the other? I probably don't know what I'm talking about.

CBGa is immediately gobbled up by active THCa, CBDa, or CBCa synthases as soon as it is created. Significant CBGa accumulation only occurs when those other synthases are extremely weak or totally defective. The charts you will see in the small handful of publications detailing CBGa concentrations in plants indicate that peak CBGa levels occur at week 5 of flowering (on average). This is because it is the peak cannabinoid production time (in general)...plants with defective THCa and CBDa synthases will keep on accumulating CBGa until the plant dies, no different than THC or CBD rich plants in that regard.

The metaphor I use to describe cannabinoid accumulation is a pipeline, for both quantity and chemotype, as opposed to a reservoir.

[Under Mi Sensi]

Originally Posted by socioecologist

CBGa is immediately gobbled up by active THCa, CBDa, or CBCa synthases as soon as it is created. Significant CBGa accumulation only occurs when those other synthases are extremely weak or totally defective.

The metaphor I use to describe cannabinoid accumulation is a pipeline, for both quantity and chemotype, as opposed to a reservoir.

SE:

So is it safe to safe that in selecting for plants high in CBG we are looking for a mutation that causes a defect in the synthases of THCa, CBDa, and CBCa? That being said the defect or mutation allows CBGa to accumulate to higher than normal levels rather than to be converted to THCa, CBDa, or CBCa...?

[socioecologist]

Originally Posted by Under Mi Sensi

SE:

So is it safe to safe that in selecting for plants high in CBG we are looking for a mutation that causes a defect in the synthases of THCa, CBDa, and CBCa? That being said the defect or mutation allows CBGa to accumulate to higher than normal levels rather than to be converted to THCa, CBDa, or CBCa...?

Correct.

https://csatc.org/pdf-Scientific-Res...Meijer2005.pdf

[Under Mi Sensi]

SE:

Thanks for providing some very useful information. I really appreciate it!

[Robrites]

SALEM — Hemp would be brought further into the mainstream of Oregon agriculture under two bills that create a commodity commission and seed certification process for the crop.

“Industrial hemp has a huge potential in Oregon, we just need a few tweaks to help move it forward,” said Matt Cyrus, who grows hemp in Deschutes County, during a March 28 legislative hearing.

Under House Bill 2372, Oregon’s hemp industry would join 23 other crop, livestock and seafood sectors to have a state commission aimed at promoting and researching a commodity through fees raised from producers.

Breeders of new hemp varieties could also get the purity of their seeds certified under House Bill 2371, similarly to other crop species, through a system overseen by Oregon State University.

“It’s truly about a certified seed, one we know Oregon can count on,” said Jerry Norton, a hemp grower.

To comply with federal provisions in the 2014 Farm Bill that allow hemp research, HB 2371 would also create a hemp pilot program at OSU, among other changes to Oregon hemp statutes.

Commercial hemp production is illegal under federal drug laws that lump hemp, a form of cannabis, in the same category as its psychoactive cousin, marijuana.

Aligning Oregon’s hemp laws with the 2014 Farm Bill provisions will likely ease financial transactions for hemp growers, since many banks are otherwise leery of dealing with the crop, Cyrus said.

“The banks are looking for specific language in statute,” he said.

If there’s ever a change in federal law regarding cannabis, Oregon’s seed certification process would let hemp breeders patent their varieties, said Jay Noller, head of OSU’s crop and soil science department.

Because cannabis is illegal under federal law hemp varieties can’t be protected, he said.

The U.S. Drug Enforcement Administration has authorized Noller to import high-quality hemp seeds from Canada and elsewhere.

At this point, though, foreign companies are reluctant to export hemp seed into Oregon due to a provision in state law allowing growers to save and plant it, he said.

Under HB 2371, that provision would be struck from Oregon law, hopefully opening the way for new hemp genetics to enter the state, Noller said.

Oregon’s hemp statutes are already setting an example for other states and the proposed changes will let growers “get off the airstrip and into the air,” said Norton.

“We feel that hemp in Oregon is going to be the new crop of the decade, if not the century,” he said.
https://www.wallowa.com/wcc/capital-b...nto-mainstream

[socioecologist]

Thanks for sharing that Robrites. The seed certification program and hemp commission are our babies, been working towards getting these established for a couple years. Very thankful to our industry lobbyist, Courtney Moran, for bringing it to fruition this year. After reading the testimony from Jay Noller (OSU) re: their seed certification concept, I'm a little less stoked as it mirrors Canada's process and is useless for high cannabinoid growers.

As drafted, seed breeders register and work with OSU (awesome!) to develop new varieties. Those varieties are then released as "breeder seed" to other growers, who are supposed to reproduce it and sell it as "foundation" seed. Any subsequent recreation after that is called "registered seed". It is designed for highly inbred lines, which are not very useful for large scale field production compared to true F1s.

How in the hell is a farmer supposed to reproduce my feminized true F1 varieties that are meant for field production? If they did, foundation seed would = F2 and be 100% useless for production. Further, the "certified" seed (F3) is basically guaranteed to be a totally different variety.

Growers will not be required to use certified seed, which is good, but hopefully we can alter the certification process to mirror the reality of large scale production.