中国小麦条锈菌条中32号的命名及其特性  

Discovery and studies on CY32, a new race of Puccinia striiformis f. sp. tritici in China

作　　者：万安民[1] 吴立人[1] 金社林[2] 姚革[3] 王保通[4] 

机构地区：[1]中国农业科学院植保所,北京100094 [2]甘肃农业科学院植保所,兰州730070 [3]四川农业科学院植保所,成都610066 [4]西北农林科技大学,杨凌712100

出　　处：《植物保护学报》2003年第4期347-352,共6页Journal of Plant Protection

基　　金：科技部科技基础性工作专项资金项目;农业部农科协作组"全国小麦锈菌小种及品种变异监测协作组"项目;"十五"国家攻关项目(2001BA509B03)资助

摘　　要：条中32号(原Hybrid46致病类型3,简称HY-3)是1991年首次在青海湟中的小麦品种红阿勃上采集到的。从其毒性基因谱、对生产品种的致病范围和近年来的出现频率衡量,预测其在以后一段时间内仍将是我国的主要优势小种之一,2002年经全国条锈菌生理小种监测协作组研究决定把HY-3命名为条中32号。条中32号小种的出现和近年来的持续发展对我国小麦条锈病发生和流行及抗病育种产生重要影响,将增加我国条锈病流行潜力并对生产构成一定威胁。今后应对其动态进行连续监测,并研究应对措施,如开展抗病预见育种、病害流行预测预报和防治等,综合治理其危害。This paper presents the discovery, identification and studies of new race CY32 of Puccinia striiformis f. sp. tritici in China. CY32 was firstly detected in 1991 on Red Abbondan-za in Qinghai. Tests on carrier lines of Yr genes have shown that CY32 has 1,2,3,4,6,9,15, 27,A,Alba,Cle,CV,Gaby,Res,SD,SpP and SO virulence factors. 80% of released commercial varieties, stock varieties and resistant resources of wheat are susceptible to CY32 , and thus there is a strong directional selection pressure conducive to the development of CY32. Frequencies of CY32 from 1994 to 2001 suggest it is becoming one of the predominate races in a relatively long period of time to come. This newly emerged race and its development will have profound effects on stripe rust occurrence and resistance breeding in China. It is recommended that resistance breeding give priority to CY32 and other predominant races.

关 键 词：中国 小麦 条锈菌 条中32号 品种命名 特征特性 

分 类 号：S435.12[农业科学—农业昆虫与害虫防治]