What is convergent improvement?

Cannabis Grow FAQ

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If you have a good single cross (A X B), and you know the vigour is the result of the dominance of growth factors, back-cross it several generations to A, selecting for qualities of B that are lacking in A. After two or more generations of back-crossing and selecting, IBLs are produced. Do the same for B. After improved A and B are obtained, they are tested in crosses and compared to the original (A X B).

Multiple convergence is improving an inbred by convergence of gametes from different sources. If A is a very desirable inbred in crosses, it can be modified in two seperate back-cross programs {eg. (A X C) X A, and (A X D) X A}, with the idea that the improved inbreds will be vigourous enough to use as the male parent of a double-cross.

Cannabis Grow FAQ

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