Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 179

In this mode of selection, the breeder focuses on one trait at a time (serial improvement). One trait is selected for several generations, then another trait is focused on for the next period. The question of how long each trait is selected before a switch and at what selection intensity, are major considerations for the breeder. It is effective when genetic correlation does not exist between the traits of interest, or when the relative importance of each trait changes throughout the years.