Application of individual plant selection method known as the system breeding.
应用单株选择的方法称为系统育种。
Pedigree method, backcross method and convergent cross selection are used widely in dwarf maize breeding.
矮生玉米自交系的选育方法主要有系谱法、回交法和聚合选择法。
Selection index method has been widely applied in breeding since it was advanced.
选择指数理论自提出以来，在育种上有了广泛的应用。
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