水稻重组自交系F7千粒重与外观品质性状的相关性  

Genetic Relationship Between 1000-grain Weight and Appearance Quality Traits Using Rice F7Population of Rice Recombinant Inbred Lines

作　　者：段丽丽[1] 余显权[2] 丁军[1] 

机构地区：[1]贵州大学农学院,贵州贵阳550025 [2]贵州大学水稻研究所,贵州贵阳550025

出　　处：《贵州农业科学》2015年第4期11-12,15,共3页Guizhou Agricultural Sciences

基　　金：贵州省科技厅科技支撑计划项目"水稻大粒恢复系与超级稻组配"[黔科合NZ字(2011)3003]

摘　　要：为探明水稻千粒重与外观品质性状的相关性,进而为水稻大粒品种的选育提供理论参考,对鄂晚10号和大粒王组配的F7代242个群体进行千粒重及外观品质性状的考察,运用SPSS 17.0软件,进行相关性及通径分析。结果表明:千粒重与粒长、粒宽、粒厚及垩白粒率呈极显著正相关,粒长与长宽比、粒厚、垩白粒率呈极显著正相关,粒宽与长宽比呈极显著负相关,与粒厚、垩白粒率呈极显著正相关,长宽比与粒厚、垩白粒率呈极显著负相关,粒厚与垩白粒率呈极显著正相关。通径分析表明,粒宽对千粒重的作用最大,粒长次之。In order to explore the relationship between 1 000-grain weight and appearance quality of rice,so as to provide a theoretical reference for large-seeded line breeding.The 1000-grain weight and appearance quality traits of 242 plants from F7 population of rice recombinant lines of cultivar Daliwang Ewan-10 were investigated using correlation and path analysis in this group.The results indicated that grain length,grain width,grain thickness and chalky rice rate had a significant positive correlation with 1 000-grain weight.Length-width ratio,grain thickness and chalky rice rate had a significant positive correlation with grain length.Grain width had a significant negative correlation with length-width ratio and had a significant positive correlation with grain thickness and chalky rice rate. Length-width had a significant negative correlation with grain thickness and chalky rice rate.Grain thickness had a significant positive correlation with chalky rice rate.The path analysis showed that grain width had the biggest action to 1000-gain weight,second is grain length.

关 键 词：水稻 千粒重 外观品质 相关分析 通径分析 

分 类 号：S511[农业科学—作物学]