小麦种质抗纹枯病性的鉴定和遗传分析  

Identification and genetic analysis of resistance to sharp eyespot (Rhizoctonia cerealis) in winter wheat germplasm

作　　者：李斯深[1] 王洪刚[1] 刘爱新[1] 李宪彬[1] 李安飞[1] 刘树兵[1] 

机构地区：[1]山东农业大学农学院,山东泰安271018

出　　处：《西北植物学报》2001年第5期1004-1008,共5页Acta Botanica Boreali-Occidentalia Sinica

基　　金：山东省科委资助项目 (971 1 64 70 1 )

摘　　要：对 2 30 0余份创新种质和引进种质抗纹枯病性进行了自然病地初步鉴定 ,在此基础上选择一批抗性好的种质进行了人工病圃鉴定 ,共评选出高抗纹枯病的创新种质 1 4份 ,引进种质 2 1份。这些种质都兼抗 1～ 3种其它病害 ,且综合性状较好 ,其中创新种质最好 ,为抗纹枯病育种提供了良好的种质材料。还选用 7个抗纹枯病性不同的亲本组配成半双列杂交组合。采用 Hayman法进行了基因效应分析 ,结果表明 ,抗纹枯病性的遗传不符合加性—显性模型。lines and varieties of resistance to wheat sharp eyespot (Rhizoctonia cerealis) were identified in nature field,and some resistant germplasm were selected to identify accurately their resistance in artifical nursery.The results showed that 14 lines which created by us and 21 lines which introduced from insititutes and universities of China and other countries are high resistance to sharp eyespot,with resisting other diseases.These lines,especially the lines created by us,are well in agronomic traits.Gene effects were analysed by using Hayman method in this paper.The results showed that the gene effects of resistance to sharp eyespot are not adapt to additive-dominance model.

关 键 词：小麦 纹枯病 种质 基因效应 抗病性 鉴定 

分 类 号：S512.1[农业科学—作物学]