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川辐２号和绵阳１９都感白粉病，其杂种Ｆ_１代的种子采用~（６０）Ｃｏ２０ｋｒａｄ处理选育了一个既抗白粉病又抗条锈病的多抗新材料４０３７。４０３７中又系远出了株高比４０３７矮１５ｃｍ的高抗白粉病和高抗条锈病的新材料２２７０。４０３７和一系列品种品系的１６个杂种Ｆ_１代都表现抗白粉病，其抗性由于另一个品种感白粉病而存在细微的差别。在４０３７与中感亲本的杂种Ｆ_２中，高抗、中抗和中感植株以１∶２∶１比例分离。４０３７的抗白粉病基因受主基因控制，具有加性效应的单基因遗传。Ｆ_２试验表明中感品种和高感品种的抗性基因之间存在微效基因差异。４０３７是杂交辐射选育而成的易位系，它和其亲本绵阳１９形成大量的四价体，和另一亲本川辐２号形成少量三价体和四价体及少量的二个单价体和四个单价体。４０３７为一个典型的易位系。
Chuan-yang-2 and Mianyang-19 were susceptible to powdery mildew. The seed of F1 hybrid was bred with ~ (60) Co20krad to produce a new multi-resistant new material 4037.4037 resistant to powdery mildew and stripe rust 2270.4037, a new material with high resistance to powdery mildew and stripe rust resistant to stripe rust of 4037, and 16 hybrids, F_1, with a variety of resistant lines, all showed resistance to powdery mildew, There are subtle differences. In 4037 and F2 progeny hybrid F2, the plants with high resistance, moderate resistance and susceptibility were separated in a ratio of 1: 2: 1. 4037 resistance gene to powdery mildew gene control, with additive effects of single-gene inheritance. F_2 test showed that there is a minor gene difference between resistance genes of susceptible and susceptible cultivars. 4037 is a translocated translocation translocation line that forms a large amount of tetravalent species with its parent Mianyang 19 and forms a small amount of trivalent and tetravalent and a small amount of two monovalent species And four unit price. 4037 is a typical translocation line.