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用7个春小麦品种(品系)进行双列杂交,配成21个组合,对其F_1代抗白粉性、抗叶锈病性的配合力分析表明,同一亲本不同抗病性的配合力不同,不同亲本同一抗病性的配合力也不同,同一亲本在不同杂交组合中抗病性配合力也有差别因此,抗病育种工作中不能只根据原始材料本身抗病性的表现来选择亲本,而必须根据抗病性配合力的高低来选配组合。参试品种(品系)中,赛洛斯(Siete Cerros)和石春1号(Shichun NO.1)是较好的兼抗白粉病和叶锈病的亲本,新春2号(Xinchun NO.2)可以作抗白粉病的亲本。由于抗叶锈病性特殊配合力方差差异不显著,故未估算抗叶锈性遗传力。抗白粉病性的广义遗传力为68.24％,狭义遗传力为52.76％。
The analysis of the combining ability of F1 progenies with anti-white powder and leaf rust resistance showed that the combining ability of different spring wheat cultivars (strains) The same parental disease resistance with different ability, the same parent in different cross combinations have different resistance with disease Therefore, the work of disease resistance breeding can not only based on the performance of the original material to choose their own disease resistance, but must be based on disease resistance The level of sexual partners to match the combination. Among the cultivars (lines), Siete Cerros and Shichun NO.1 were better parents of powdery mildew and leaf rust. Xinchun NO.2 could be used as Powdery mildew resistant parent. Due to the difference in variance of resistance to leaf rust was not significant, the heritability of leaf rust resistance was not estimated. The broad-sense heritability of resistance to powdery mildew was 68.24%, and the narrow heritability was 52.76%.