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小麦抗赤霉病种质资源的鉴定与筛选

     

摘要

于2005-2006年度对330份不同来源小麦的品种(系)进行赤霉病抗性鉴定,淘汰抗性与高感小麦品种‘绵阳26'类似的品种,选取材料46份(占参试材料的13.93%);于2006-2007年度重复鉴定,并依据病情指数进行聚类分群.结果表明:46个参试品种(系)及3个对照品种可分为6个类群,分别含2个、5个、10个、14个、15个、3个品种(系),第Ⅰ类群、第Ⅱ类群、第Ⅲ类群品种(系)抗性表现较好.%The 330 different-source wheat varieties(lines)were evaluated in terms of scab resistance during 2005 - 2006,those similar to the wheat variety 'Mianyang 26' susceptible to scab were eliminated,and thus 46 wheat varieties (lines) were selected. The 46 varieties (lines) were re-evaluated during 2006-2007,and their cluster analysis was made according to their disease indexes. The result showed that the 46 varieties(lines)and 3 control varieties could be divided into 6 groups containing respectively 2,5,10,14,15 and 3 varieties (lines), in which Groups 1,2 and 3 had relatively good resistance to scab.

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