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作者	单位
何春雨，张礼军，杜久元，周祥椿，周洁，白斌，周刚	（甘肃省农业科学院小麦研究所/国家小麦产业技术体系甘肃小麦综合试验站,甘肃兰州 730070 ）

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中文摘要:

为了解不同抗条锈性类型品种的反应特征，以利于抗条锈种质资源的选择和抗锈育种选育，在大田成株期、条锈病压力相同的条件下，对分属不同抗性类型的五个冬小麦品种的条锈病感染响应动态和产量损失率进行了研究。结果表明，高感快锈类型（HX型）、高感中度快锈兼具高温抗性类型（L1型）、高感中度慢锈兼具高温抗性类型（L10型）、慢锈类型（LB型）、慢锈兼具高温抗性类型（NS型）的普遍率、严重度、病情指数呈现规律性变化，随生育进程的推进，五个类型小麦在不同生育阶段表现出明显的个性特征。慢锈类型品种潜育期最长，特别是与高温抗性结合的品种，对锈菌的生长发育具有更强的抑制作用，可有效控制病情发展和发生；HX型品种潜育期最短，其他类型居于二者之间。LB和NS型品种不会出现免疫现象，反应型一般为0；～2型。高感类型千粒重和产量损失较大。

英文摘要:

The responses of five winter wheat cultivars with typical resistance to strip rust at the adult stage and their yield losses were investigated to understand the dynamic characters of different stripe rust resistant cultivars and promote the selection of materials for breeding. After being inoculated with the main races and observing the dynamic responses to strip rust, we obtained the results that the prevalence, severity, disease index of strip rust in different types of cultivars showed specific changes along with wheat growing, the five types could be characterized as high susceptibility and quick rust (abbreviated as HX), high susceptibility and middle quick rust with high temperature resistance (L1), high susceptibility and middle slow rust with high temperature resistance (L10), slow rust (LB) and slow rust with high temperature resistance (NS). Latent period could be lasted by slowing rust character in cultivars; especially the slow rust with high temperature resistance(NS) was able to control stripe rust effectively. High susceptibility and quick rust (HX) always appeared symptom early and quickly while the others appeared the symptom later. The response type of LB and NS type was 0；and ~2 with no immunity, respectively. The losses of 1000 kernel weight and yield increased with development of susceptibility and spreading of strip rust.

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