为明确288份玉米农家种和自交系对普通锈病的抗性差异，于2018年在甘肃省农业科学院榆中园艺场通过田间自然感病的方法对其进行了抗性鉴定。结果表明，参试的288份种质资源中，未发现高抗(HR)材料；表现抗病(R)的材料有33份，占11.46%；表现中抗(MR)的材料有95份，占32.99%；其余116份和44份表现感(S)和高感(HS)，各占供鉴材料的40.28%和15.28%。对普通锈病表现中抗及以上的农家种有34 份，占供试农家种的44.73%；表现中抗及以上的自交系有94份，占供试自交系的44.34%。该鉴定结果可为抗锈病育种提供抗源材料。

In order to clarify the difference of resistance of 288 corn peasant resources and inbred lines to Puccinia sorghi， this study was conducted in 2018 at the Yuzhong Horticultural Proving Ground of Gansu Academy of Agricultural Sciences through the method of natural disease resistance in the field. The results showed that among the 288 germplasm resources tested， no high-resistance(HR) material was found； 33 materials showed disease resistance(R)， accounting for 11.46%； 95 materials showed moderate resistance to(MR)， accounting for 32.99%； and the remaining 116 and 44 samples with sensitive(S) and high-sensitivity(HS)， accounted for 40.28% and 15.28%， respectively. There were 34 farm species with moderate resistance to Puccinia sorghi， accounting for 44.73% of the tested farm species， and 94 inbred lines with moderate resistance and above， accounting for 44.34% of the tested inbred lines. The identification results can provide resistant materials for rust resistance breeding.

S435.131.4

国家重大计划专项“第二次青藏高原综合考察研究”(2019QZKK0303)子课题“农田生态系统与粮食安全”资助。