IBL vs Poly (Genetic Comparison)

[Misfit]

Its common knowledge that genetics matter. I can share a comparison of early growth of polyhybrids and an IBL that were started at the same time and grown in the same environment.
6 polyhybrid seeds, 4 IBL.
This shows the loss of vigor in amalgamations and the mindfully selected good plant breeding practices that went into the IBL and the difference it makes even in the early growth stages.

The polyhybrids emerged faster, but the IBL grows faster and bigger. Polyhybrids on the left, IBL on the right. I added a purple line to seperate the 2 groups.

 

[Laughing Grass]

Welcome to GrowDolls @Misfit

You can really see the difference in the thickness of stems in your April 2nd pic. I've only had the opportunity to grow IBL seeds once.

What strains do you have going?

 

[Misfit]

Im in Berlin, Germany.

 

[Senokai]

@Laughing Grass , I get asked about the cultivars I work with often enough to where I made a short garden presentation that I update as I go along. I have it in a pdf file form, but here I can just post the images.
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Great presentation. I like the layout

 

[Misfit]

Great presentation. I like the layout

Thanks! I think the text is a too small, but its just the basic info of the garden project and not super important. I had thought about doing a vertical format because people use their mobile devices so often.

 

[Rocket Soul]

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Beyond that I plan to revive a couple african varieties from a preservation seed archive (pre-1970 like the other IBLs here). They are cultivars that contain THCV which is an appetite suppressant. Good for people with diabetes or that struggle with weight problems. The most important project for this year, and likely into next year.

Very keen on hearing more about anything thcv. Good luck and remember its hard to get thcv to be expressed without a decent amount of uva and uvb.

 

[Misfit]

Very keen on hearing more about anything thcv. Good luck and remember its hard to get thcv to be expressed without a decent amount of uva and uvb.

No, THCV does not "need" UVA or UVB to be produced in African cultivars. That's grower folklore, not science. This is exactly why I don't take advice from people who aren't well qualified to speak on the subject. Repeating unverified forum myths as fact just spreads bad information and wastes everyone's time and grows.

THCV and its acidic form THCVA come from the varin pathway. Production is controlled by genetics, specifically the presence and expression of THCV synthase enzymes that convert CBGVA into THCVA. African landraces enriched in these alleles express THCV reliably under standard full-spectrum indoor lights with zero supplemental UV. Modern controlled studies on UV in cannabis consistently show no significant or relevant boost to cannabinoid profiles, including minor cannabinoids like THCV. In fact, many find neutral or negative effects on yield, photosynthesis, and overall quality, with plants showing stress symptoms instead of magic potency gains.

The old 1987 Lydon study, often mis-cited, only noted a small THC bump in one outdated cultivar. It did not address THCV, and newer research on modern high-cannabinoid lines has repeatedly failed to replicate meaningful benefits from UV. African cultivars evolved under high-UV equatorial sun, sure. But that shaped their genetic tolerance and baseline secondary metabolites, not a hard requirement for the biosynthetic pathway.

More importantly the plants are holobionts and will be treated accordingly. Seedlings transfered to growing under the sun in soil. Yes, I do grow indoors in winter, and raise seedlings in a protected enviornment, and grow indoors for simple testing and certain aspects of a project. Im also not working alone. And the goals I have aren't about having my jars filled with these cultivars flowers containing THCV, thats not my medicine. Its about the genetic line, and having these available to people that need that as their medicine. Seeds. Preservation.

 

[Laughing Grass]

Good discussion here — just a reminder for everyone to keep things respectful and focused on sharing knowledge, not qualifications. We’ve got growers at all levels and that’s part of what makes GD work

 

[Misfit]

I respect people wanting to learn but to imply someone is incompetent isn't the respectful way to aquire information from anyone. In spite of the implied insult I provided the necessary information anyway out of compassion and understanding. I know nothing about most of the people here, and only a little about a couple. I could be speaking to the elderly, the very young and inexperienced or even the handicapped and sick. I have made no conclusions to build prejudice, or formed an image of the ones I don't know. Please do me the same favor.

 

[Rocket Soul]

I respect people wanting to learn but to imply someone is incompetent isn't the respectful way to aquire information from anyone. In spite of the implied insult I provided the necessary information anyway out of compassion and understanding. I know nothing about most of the people here, and only a little about a couple. I could be speaking to the elderly, the very young and inexperienced or even the handicapped and sick. I have made no conclusions to build prejudice, or formed an image of the ones I don't know. Please do me the same favor.

I apologize if you felt i implied something about you, best of luck in all your endeavours.

I tried growing Medical seeds Novarine, looking for THCV but sadly no seeds popped.

 

[curious2garden]

I apologize if you felt i implied something about you, best of luck in all your endeavours.

I tried growing Medical seeds Novarine, looking for THCV but sadly no seeds popped.

I didn't read it that way at all RS and besides as our LED expert of long standing that was exactly the question I would assume created the initial genetics for THCV since it's found in strains where there is high UV. Both of us understanding correlation isn't causation would still beg this fascinating question and I'm glad you asked it as I would have.