测定了CY17，CY31突变菌系在感病品种铭贤169上的相对寄生适合度属性，并利用“病害量”衡量突变菌株的相对寄生适合度。
Relative parasitic fitness was detected on suscepitable wheat cultivars Mingxian 169 for mutants of the CY17 and CY31, and disease capacity was used in the experiment.
近交衰退指近交个体的适合度相对下降的现象，它是近亲繁殖的主要障碍。
Inbreeding depression is the decrease of offspring fitness after inbreeding and is one of the primary forces selecting against the evolution of self-fertilization.
近交衰退指近交个体的适合度相对下降的现象，它是近亲繁殖的主要障碍。
Inbreeding depression is the decrease of offspring fitness after inbreeding and is one of the primary forces selecting against the evolution of self-fertilization.
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