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为了挖掘新的抗病基因资源，对82份小麦种质材料分别进行了苗期和/或成株期白粉病、秆锈病和条锈病抗性鉴定。结果表明，苗期抗白粉病材料占供试材料的46.34%；抗秆锈病材料占79.03%；抗条锈病材料占53.33%。一粒小麦MO2、MO5、BO1、BO3、BO9、BO104，二粒小麦 PS5，普通小麦黔麦15、沈免2059、捷克G377、丰优3号、Fr81 12 和兰考5号对白粉病和秆锈病均表现抗病。栽培一粒小麦MO5和野生一粒小麦 BO1、BO3、BO9 对三种病害均表现中等以上抗性。对部分材料进行了田间成株期鉴定的结果表明，对秆锈病均表现高抗，与苗期一致；条锈病、白粉病表现与苗期抗性有差别。研究结果说明，供试材料对不同病害的抗性存在明显差异，一粒、二粒小麦对白粉病抗性较好，骨干亲本和外引材料及辽宁省区域试验参试品系对秆锈病抗性较好。

英文摘要:

In order to investigate and transfer novel disease resistance genes, identification of disease resistance of 821 accessions （Einkorn wheat, Emmer wheat, breeding parents and alien cultivars, and lines bred in Liaoning）to powdery mildew, strip rust and stem rust was carried out, respectively. The results showed that the resistance accessions accounted for 46.34%, 79.03% and 53.33 % at seedling stage, to powdery mildew, stem rust and strip rust, respectively. Einkorn wheat (MO2, MO5, BO1, BO3, BO9, BO104), Emmer wheat PS5, and common wheat Qianmai 15, Shenmian 2059, Jieke G377, Fengyou 3, Fr81 12 and Lankao 5 were resistant to both powdery mildew and stem rust，accounted for 20.97％ in all tested materials. T. monococcum accession MO5 and T. boeoricum accessions BO1, BO3 and BO9 showed resistance to three diseases，accounted for 26.67%. Identification of disease resistance in some materials at adult stage in the fields, showed that the resistance to stem rust was the same as in seedlings, but showed some difference with that at seedling stage in resistance to powdery mildew and strip rust. Above result showed that the accessions had different resistance to different pathogens. Einkorn wheat and Emmer wheat showed good resistance to powdery mildew while breeding parents and alien cultivars and lines bred in Liaoning showed good resistance to stem rust.

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