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Multistage selection index is an important extension to single stage selection index for genetic improvement of multiple traits. Recently, a multistage selection procedure, referred to as selection index updating, has been developed. This procedure combines several desired aspects of independent culling and selection index. In this study, we directly extend selection index updating to cases of...
Selection index updating, a method of multistage selection, allows breeders to determine the optimal truncation point of each stage so that the aggregate genetic gain (▵H) or the gain to cost ratio (▵H/C) is maximum. In this study, we demonstrated the use of selection index updating on selection of red clover (Trifolium pratense L.). We determined the optimal selection schemes that optimized the balance...
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