Greeting, Smot poker
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Originally Posted by Poke Smot My second question is what if I inbreed two f1 hybrid plants of the same quality genetics? For example if I obtained a high quality f1 strain like Ak-47 and made homemade seed it. The seed would be f2's, right? |
Correct. IBL x IBL = F1. F1 x F1 = F2.
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Originally Posted by Poke Smot (From what I understand, variation will be greater in the f2 than in the f1's, right?) |
F1's are highly uniform, F2's are highly variable.
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Originally Posted by Poke Smot If I continue inbreeding these seeds (f3, f4, f5, etc) would the vigor and/or potency decline after being inbred many times? |
If you select poor quality parents then you will degrade the line. If you select good parents, you could remain stable or even improve. Of course you could also hit the "negative recessive " lottery. Male selection is difficult and using whatever random male happens to be handy will not necessarily have good results.
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Originally Posted by Poke Smot ( Would it be wise to keep a few of the F1 seeds to backcross to preserve vigor/potency? |
It would be better if you could backcross to the original IBL. True breeding IBL are pretty much homozygous, where F1s are mostly heterozygous.
Actually, for a small scale breeding program where the breeder is mostly just concerned about not losing quality, the breeder could start with 2 reputable high-quality stable IBLs (truly true-breeding). Say NL#5 and Skunk#1 for the purposes of discussion. Each generation, breed (NL x NL), (S1xS1), (NLxS1), and (S1xNL). That way the IBL breeding stock is maintained, and shouldn't degrade much even without rigourous parent selection. And the F1 hybrid should have a lot of vigor while being very uniform. A few generations into it when things look stable, a third IBL could be added to increase variety.
Or you could just use clones
