西南麦区小麦抗穗发芽品种资源筛选  

Germplasm Screening for Resistance to Pre-harvest Sprouting in Southwest China

作　　者：刘爽[1,2,3] 李俊[2,3] 王琴[2,3] 朱欣果 刘磊[2,3] 胡晓蓉[2,3] 万洪深[2,3] 杨武云[2,3] 秦文[1] 

机构地区：[1]四川农业大学食品学院,四川雅安625014 [2]四川省农业科学院作物研究所,四川成都610066 [3]农业部西南区小麦生物学与遗传育种重点实验室,四川成都610066

出　　处：《西南农业学报》2014年第3期931-937,共7页Southwest China Journal of Agricultural Sciences

基　　金：国家重点基础研究发展计划(2011CB100100);现代农业产业技术体系建设专项资金(CARS-3-2-41);四川省育种攻关项目;四川省国际合作项目(2010HH0052);四川省财政育种青年基金

摘　　要：本试验研究了137份西南麦区(含国内外)小麦品种(系)的穗发芽抗性差异,结果表明,供试材料穗发芽敏感性差异较大,平均发芽率(53.11±27.05)%,变异系数为50.94%,由K-均值聚类法共分为5类;地方品种抗穗发芽能力最强,人工合成小麦次之,育成品种(系)较差。筛选出了15份高抗穗发芽材料,其中小白花、黄县大粒为新筛选出的两份白粒高抗穗发芽地方品种。In this study, 137 domestic and introduced accessions were conducted with the goal of germplnsm screening for high pre-harvest sprouting resistance, and their differences were studied. The results showed that there were significant differences in PHS resistance between these accessions, with the average germination rates of （53.11 ± 27.05） % and coefficient of variation of 50.94 %, moreover, these acces- sions could be divided into 5 clusters by the K-means cluster analysis. The landraces had the highest pre-harvest sprouting resistance as com- pared with the synthetic hexaploid wheat, and improved cultivars were worse. Among the selected 15 wheat accessions with high PHS resist- anoe, the landraces Xiaobaihua and Huangxiandali were white-grained wheat varieties.

关 键 词：小麦 抗穗发芽 筛选 西南麦区 

分 类 号：S512.1[农业科学—作物学]