Selection Strategy in Breeding of Selffertilizing Crops. : III. Evaluation of the Delayed Selection System in Consideration of Repulsion Linkage between Desirable Alleles

Abstract

The application of generation advancement in the presence of undesirable repulsion linkages was investigated based on the probability that promising genotypes are included in the F_t (t〓2) population with a given total breeding cost in F₂ to F_t generations. It was concluded that a breeding system incorporating early selection in the F₂ and F₃ is superior to the delayed selection system where segregating populations are generation-advanced until F₄ or later generations without selection.