The influence of crossing strategy on the potential for breeding new crop varieties [wheat]
1992
Brennan, P.S. (Queensland Dept. of Primary Industry, Toowoomba (Australia). Queensland Wheat Research Inst.) | Butler, D.G. (Queensland Dept. of Primary Industries, Toowoomba (Australia))
The utility of a single backcross (BC1) to the parent with the greatest number of favourable alleles was examined as a method of fixing commercially desirable alleles as exemplified in a wheat breeding programme. The means for stability parameters for yield for BC1F2-derived populations were similar to those for F2-derived populations. The genetic variance for yield in 2 of the 3 crosses studied was greater for the BC1F2- than the F2-derived populations, while the genotype x environment interactions appeared to be smaller for the BC1F2 populations. This suggested that the latter may be more productive in terms of varietal production than F2-derived populations.
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