How is THC increasing?

[Linux]

How are breeders increasing the THC content of a strain's genetics?

Does it has to do something with adding uv-b lights and keep crossing them over time?
From my understanding most potent natural strains are on the high top mountains because of increased UV rays which induces the plant to produce more thc for protecting itself from dna damage.

How exactly THC is increasing with the newer strain genetics.
How can you make strain "x" that it's genetics will only allow a maximum of 22%thc into a newer strain genetics that will allow a maximum of 29% THC.

 

[Jonny Lan]

If ur a great breeder u can do it. i haven't figured it out yet though

 

[EastCoast710]

breeding high thc varieties.. prolly just breeding and using lab tests to pick the best ones to make seeds with.. and so on an so forth.. I know if I had access id lab test breed and go for potency and yield

 

[englishrick]

http://www.genetics.org/content/163/1/335

Aim of the work:

This study aims to clarify the inheritance of cannabinoid chemotype, by isolating pure CBD and pure THC inbred lines. A simple inheritance model was proposed after making crosses between the chemotypically contrasting lines and examining a number of F1 and F2 progenies. An RAPD analysis of the parental lines and their offspring was performed and a number of chemotype-associated markers were described.


Your welcome

 

[Linux]

Eastcoast thats what I thought. but its bothering me how strain "x" has maximum of 25% and strain "y" maximum of 24% makes seeds that might have 29% thc.

 

[Linux]

englishrick thanks

 

[Gry]

Takes a higher calling.

 

[Dioni]

Eastcoast thats what I thought. but its bothering me how strain "x" has maximum of 25% and strain "y" maximum of 24% makes seeds that might have 29% thc.

It is a math equation and numbers never lie but i'm sure there are other factors that would increase THC, still a very good question that needs a good answer.

 

[WelderDan]

Selective breeding. That's it. No UV-B lights, no magic hydro nutrients, no voodoo.

 

[Wolfshadoe]

As WD put it>>>>NO PHD shit required..Perfect example>>>BULLIES,,them damn lil stout dogs were bred that way..You can damn well bet there is MANY who understand selective breeding..plant or dog..

As far as this science they got for THC levels,,Id like for them scientist to tell me why my early 80s good old swamp grown mj got me just{if not higher} than todays...
My only guess is tolerance as I sit here eating canna banana muffin,after getting munchies from the blue dream I just smoked..lol Peace <ws>

 

[LostTribe]

http://www.genetics.org/content/163/1/335

Aim of the work:

This study aims to clarify the inheritance of cannabinoid chemotype, by isolating pure CBD and pure THC inbred lines. A simple inheritance model was proposed after making crosses between the chemotypically contrasting lines and examining a number of F1 and F2 progenies. An RAPD analysis of the parental lines and their offspring was performed and a number of chemotype-associated markers were described.


Your welcome

Somebody call a Plumber?

 

[GrowingHigher]

Cannabinoid content is a result of a lot if different genes. For instance there are genes that produce enzymes that affect the production of precursor metabolites, which can occur at differing levels. There are genes that produce enzymes to direct these precursors towards different cannabinoid synthesis pathways (or not).

For example, differing strains with the same cannabinoid levels may have differing genes that come together to produce that cannabinoid level. So strain A may produce more precursor molecules. Strain B may be more efficient at synthesizing THC from those precursors. So when you have a AxB cross some plants that receive the beneficial genes from each parent may produce more total Cannabinoids.


This link is sort of hard to sort through, but it is worth lookin. It is the Illinois Long Term Selection experiment:
https://www.ideals.illinois.edu/handle/2142/3524

They started with a single population and selected for high/low oil and protein. It is the selection for genes associated with the desired phenotype accumulating in a lineage over time (both from genes present in the original population and new variation from mutation) that allows the levels of each to continue to rise (up to some theoretical maximum)

 

[Jellyfish]

Selective breeding. That's it. No UV-B lights, no magic hydro nutrients, no voodoo.

WelderDan got it right.

Linux- but its bothering me how strain "x" has maximum of 25% and strain "y" maximum of 24% makes seeds that might have 29% thc.

Strain X and Strain Y are both chosen because of their high thc production. You breed them together, and then find the best offspring that give that outcome. Then do it again and again. It takes generations and time to do it.

 

[englishrick]

As WD put it>>>>NO PHD shit required..Perfect example>>>BULLIES,,them damn lil stout dogs were bred that way..You can damn well bet there is MANY who understand selective breeding..plant or dog..

As far as this science they got for THC levels,,Id like for them scientist to tell me why my early 80s good old swamp grown mj got me just{if not higher} than todays...
My only guess is tolerance as I sit here eating canna banana muffin,after getting munchies from the blue dream I just smoked..lol Peace <ws>

Just an example,,

Known as the entourage effect,,,

http://onlinelibrary.wiley.com/doi/10.1111/j.1476-5381.2011.01238.x/full

Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects

Abstract

Tetrahydrocannabinol (THC) has been the primary focus of cannabis research since 1964, when Raphael Mechoulam isolated and synthesized it. More recently, the synergistic contributions of cannabidiol to cannabis pharmacology and analgesia have been scientifically demonstrated. Other phytocannabinoids, including tetrahydrocannabivarin, cannabigerol and cannabichromene, exert additional effects of therapeutic interest. Innovative conventional plant breeding has yielded cannabis chemotypes expressing high titres of each component for future study. This review will explore another echelon of phytotherapeutic agents, the cannabis terpenoids: limonene, myrcene, α-pinene, linalool, β-caryophyllene, caryophyllene oxide, nerolidol and phytol. Terpenoids share a precursor with phytocannabinoids, and are all flavour and fragrance components common to human diets that have been designated Generally Recognized as Safe by the US Food and Drug Administration and other regulatory agencies. Terpenoids are quite potent, and affect animal and even human behaviour when inhaled from ambient air at serum levels in the single digits ng·mL−1. They display unique therapeutic effects that may contribute meaningfully to the entourage effects of cannabis-based medicinal extracts. Particular focus will be placed on phytocannabinoid-terpenoid interactions that could produce synergy with respect to treatment of pain, inflammation, depression, anxiety, addiction, epilepsy, cancer, fungal and bacterial infections (including methicillin-resistant Staphylococcus aureus). Scientific evidence is presented for non-cannabinoid plant components as putative antidotes to intoxicating effects of THC that could increase its therapeutic index. Methods for investigating entourage effects in future experiments will be proposed. Phytocannabinoid-terpenoid synergy, if proven, increases the likelihood that an extensive pipeline of new therapeutic products is possible from this venerable plant.


Your welcome,,,,




Mom I did it again,,,

 

[Wolfshadoe]

eng.. Gawd...I love this place!!!....Lol..

I read and understood>>>{don't know how} lol .All them fancy long words just gets me lost,..Not real book smart.But knowledge,and understanding just comes natural to those who GREW up this way...Topic a good one though..

Things I have noticed ..after absence of decade....The strains and genetics BOTH have changed...<ws>...Now gotta work on acclimation,and reintroducing strains to heat/humity..peace..Lol gotta go to work..Coffe done doobs rolled, Gotta roll...Yall folks have a blessed day!!<ws>

 

[Siever]

Linux,

the reason why a 25% strain x a 24% strain = a 29% strain is because probably the parents where both IBL (inbred lines). Every living creature will lose a lot of vigour.
So if you cross to of those IBL's together (if they're not too closely related) you'll create a phenomenon called hybrid vigour. This means the offspring has better qualities than both of their parents. For example:the offspring's flowers will contain more THC than anyone of the parents. It could also give more yield or both (more yield + more THC) or shorter flowering etc.

Siever

 

[el gordo]

it's all marketing guys, the thing is the numbers depends greatly on the operator skills and habilities to read the results, so they are very subjective, don't be fooled by thc measurements, comparing results from different labs, methods, and even operators are like comparing apples and oranges...

 

[blastfrompast]

Siever has it right.

Also just because the mom's and dad's are 24% doesn't mean their kids cant be 28%.

Ever see 2 ugly people have a cute baby.....

Same shit lol...

 

[burningfire]

it's all marketing guys, the thing is the numbers depends greatly on the operator skills and habilities to read the results, so they are very subjective, don't be fooled by thc measurements, comparing results from different labs, methods, and even operators are like comparing apples and oranges...

this guy gets it, they test thc by weight and cherry pick the buds they test.. they should average the entire plant but nobody is going to pay for that.

 

[englishrick]

THC , CBD , an Terp is good to know,,,let them pick the best,,I know then what is possible