自交原始材料的群体产量水平和选系配合力的高低有密切关系,高产优良品种或杂交种才能选育出配合力高的自交系。自交系配合力的高低和一些产量性状以及其传递力有着密切的关系。一些高配合力的自交系常具有突出优良的产量性状,而且它们这些性状具有较强的传递力,常能在杂交组合中 The population yield of selfed parent material is closely related to the selection and combining ability, and the high yielding elite or hybrid can bred inbred lines with high combining ability. The level of combining ability of inbred lines is closely related to some yield traits and their transmitting power. Some high-combining inbred lines often have outstanding yield traits, and these traits have strong transmission ability, often in hybrid combinations