湖北小麦材料穗发芽抗性评价  

Identification on Pre-harvest Sprouting Resistance in Hubei Wheat Accessions

作　　者：董静[1] 李梅芳[1] 许甫超[1] 秦丹丹[1] 张俊成[1] 朱霞 彭惠[3] 胡婧[3] 

机构地区：[1]湖北省农业科学院粮食作物研究所,武汉430064 [2]西藏自治区山南地区农业技术推广中心,西藏山南856000 [3]长江大学农学院,湖北荆州434023

出　　处：《湖北农业科学》2011年第24期5040-5043,共4页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BADOIA02-21);湖北省"十一五"重大科技攻关项目(2006AA201A04);湖北省农业科技创新中心资助项目(2007-620-001-03)

摘　　要：通过整穗发芽和子粒发芽试验评价了湖北省85个材料的穗发芽抗性。结果表明,品种间穗发芽抗性差异显著,红粒小麦材料休眠性和抗穗发芽性较强,而白粒小麦抗穗发芽种质匮乏;根据穗发芽率和子粒发芽指数两个指标聚类分析,供试材料可以分为5类,13份材料具有较强的休眠性和抗穗发芽能力;湖北省大面积推广和新选育出的品种中,郑麦9023对穗发芽高度敏感,湖北省选育的品种大多有较好的抗性,其中鄂麦352表现优异。研究结果为湖北小麦生产品种布局和抗穗发芽品种改良提供了重要依据。The PHS resistances of 85 Hubei wheat cultivars（lines） were identified by intact spike and seed germination assays.The results indicated that there was significant difference of PHS resistances among the above wheat cultivars,as those red-grained wheat cultivars were with longer period of seed dormancy and better resistances to PHS.But white-grained wheat cultivars had no high resistant to PHS.A cluster analysis resulted in 5 clusters based on spike germilation rate and ermilation index;And 13 wheat cultivars had strong resistance to PHS.Among those major and new wheat cultivars bred in Hubei,Zhengmai 9023 was high susceptive to PHS,while most cultivars had better PHS tolerances,especially Emai352.The research results were useful in cultivars distribution and wheat breeding for PHS resistance lines.

关 键 词：小麦 穗发芽 穗发芽率 发芽指数 

分 类 号：S512.11[农业科学—作物学]