摘要
鉴定了170份小麦近缘物种材料苗期对北京地区流行的小麦白粉菌小种的抗性表现,包括引自美国和欧洲的斯卑尔脱小麦81份,密穗小麦27份,中国的西藏半野生小麦4份,和引自 CIMMYT 的人工合成六倍体小麦58份。结果表明,3份斯卑尔脱小麦表现抗病,它们是瑞士品种 Hubel 和 Lueg 以及德国的原始品种69Z6.245(编号 PI348085)。人工合成六倍体小麦中有19份材料表现高抗至免疫。密穗小麦材料中有2份(即美国材料 DN-2263和 Coda)表现抗病。4份西藏半野生小麦苗期都不抗小麦白粉病。
One hundred seventy varieties or lines of wheat relatives,including 81 accessions of spelt and 27 accessions of Triticum compacturn from USA and Europe,4 accessions of semi-wild wheat collected from Tibet,China,and 58 accessions of synthetic hexaploid wheat from CIMMYT,were tested for their resistance to wheat powdery mildew at seedling stage.The results indicated that three spelt accessions,including Hubel and Leug collected from Switzerland and one Germany primary spelt line 69Z6.245 (PI348085) were found resistant to powdery mildew.Nineteen accessions among the 58 synthetic hexaploid wheat and two accessions of T.compactum were highly resistant to powdery mildew.The resistant germplasm will be uesful for powdery mildew resistance breeding of wheat.
基金
北京市科委重点项目(200100085)资助
