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RPsmoke
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- Jan 26, 2011
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Sounds about right to me. Might help, so I'll add: P1 stands for Parental generation. Those Parents create first filial generation, or f1. You can cross these sibling together for an f2. In your case sounds like two siblings are from an earlier cross? Same parents? Crossing them together would produce f2. If you are outcrossing to new genetics, then you could call them P, and their seeds would be the f1 generation. F1 tends to be fairly stable, and is what a lot of popular breeders produce. When you take two f1 and create the f2, you tend to see greater variations in phenotypes (more recessive). You can pick siblings to cross back to the parents (sounds horrible, but... its breeding) and help strengthen the genetics you want, getting closer to IBL. You are trying to create a homozygous pair of chromosomes for that specific trait (say, purple bud). This trait would then be a dominant gene and would carry those purple traits with it. Crossing it with another sibling that reached 'IBL' for that trait would result in 100% purple buds, or close to for your environment. Basically inbreeding until there is little to no variation in the genes, and seeds produce almost clone like siblings. True, or original IBL I think of as landrace strains. I don't think you can reach a true IBL by sibling incrossing, I believe the genes need to be brought back to the P generation.