Auto-dwarfing plants and breeding

jamesjones · Aug 23, 2010

I bought some feminized Auto-berry seeds from www.marijuana-seeds.nl and I was wondering if I could breed them with my white rhino or northern lights or whatever? I mean im sure its possible to use male pollen and breed one of my feminized plants, but what will I get? I'm new to this and this is my second grow so any info would be greatly appreciated, thanks! Also, highly recommend www.marijuana-seeds.nl, i live in USA and they had my order shipped to me in 6 days! Great customer service and very friendly to talk to. But any info on the breeding would really be helpful. I am also gonna try to start posting picks of my grow to show everyone.

mattinuk3 · Aug 23, 2010

Hey check out an article on Gregor Mendel and how to do a punnett square. It will help you understand a lot about breeding for traits. The short answer is that you would have to cross a normal strain with your auto blueberry, then inbreed the f1 generation. Based on the punnett square, all plants in the f1 generation will carry the autoflowering gene, but won't express it because the normal flowering gene is dominant. Once you inbreed the f1 generation, 25% of the f2 generation will autoflower. Breed a male and a female that autoflower from the f2 generation and 100% of the f3 generation will autoflower.

This was how the first autoflowers were created. They mixed ruderalis (~1% THC) with a high potency strain (lets say 20% THC), and inbred it until 100% of the offspring autoflowered. However, being 50% ruderalis, and 50% high potency, they only had a moderate amount of THC. (lets say 10.5% based on the numbers above)

Then, start the whole process over. Use the f3 generation that was moderate THC (10.5%) and 100% autoflowering, and cross that with a highly potent normal strain (lets say 20% again). 3 generations of inbreeding later, 100% will autoflower, but this time they will have (10.5+20)/2=15.25% THC.

You can now understand why ruderalis has no effect (EDIT: hardly any effect) on potency after several crosses. One more cross with our hypothetical autoflowering strain up there and a highly potent normal strain could push the THC up to nearly 18%. This also shows why people are wrong when they automatically discount autoflowering strains as less potent.

jamesjones · Sep 3, 2010

mattinuk3 said:
Hey check out an article on Gregor Mendel and how to do a punnett square. It will help you understand a lot about breeding for traits. The short answer is that you would have to cross a normal strain with your auto blueberry, then inbreed the f1 generation. Based on the punnett square, all plants in the f1 generation will carry the autoflowering gene, but won't express it because the normal flowering gene is dominant. Once you inbreed the f1 generation, 25% of the f2 generation will autoflower. Breed a male and a female that autoflower from the f2 generation and 100% of the f3 generation will autoflower.

This was how the first autoflowers were created. They mixed ruderalis (~1% THC) with a high potency strain (lets say 20% THC), and inbred it until 100% of the offspring autoflowered. However, being 50% ruderalis, and 50% high potency, they only had a moderate amount of THC. (lets say 10.5% based on the numbers above)

Then, start the whole process over. Use the f3 generation that was moderate THC (10.5%) and 100% autoflowering, and cross that with a highly potent normal strain (lets say 20% again). 3 generations of inbreeding later, 100% will autoflower, but this time they will have (10.5+20)/2=15.25% THC.

You can now understand why ruderalis has no effect (EDIT: hardly any effect) on potency after several crosses. One more cross with our hypothetical autoflowering strain up there and a highly potent normal strain could push the THC up to nearly 18%. This also shows why people are wrong when they automatically discount autoflowering strains as less potent.

WOW, I took organic chem and I am in medical school and I have taken genetics but man punnett sq. is something I havent heard in a long time. But Im sure its not as easy as it sounds selecting the plants you want with traits you want to make a dwarf auto-flowering high potency plant? And i'm sure you would need a lot of space like a warehouse to do it in, and as well have it contained to where pollen doesnt mix around with other females am I correct? Because I am a newbie, but within 2 years I want to have my own business in Holland where I breed plants and make totally new strains and genetics that are completely wild. I have a very strong background in chemistry and not only that but my daytime job (doctor) will pay for what I lack in my growing

Id like to talk to you some more regarding breeding and stuff like that if you don't mind, if you could email me at [email protected] i'd really appreciate it. Thanks

Auto-dwarfing plants and breeding

jamesjones

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mattinuk3

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jamesjones

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