长江中下游小麦产量与主要农艺性状的灰色关联度分析  

Grey Correlation Analysis of the Relationship Between the Yield and Main Agronomic Characters of Wheat Cultivars Grown in the Middle-lower Yangtze River

作　　者：杨红燕 徐肖 栾海业[1] 张英虎[1] 臧慧[1] 乔海龙[1] 刘艳艳[1] 陶红[1] 陈健[1] 陈和[1] 沈会权[1] YANG Hong-yan;XU Xiao;LUAN Hai-ye;ZHANG Ying-hu;ZANG Hui;QIAO Hai-long;LIU Yan-yan;TAO Hong;CHEN Jian;CHEN He;SHEN Hui-quan(Jiangsu Coastal Area Institute of Agricultural Sciences,Yancheng 224002,China)

机构地区：[1]江苏沿海地区农业科学研究所,江苏盐城224000

出　　处：《大麦与谷类科学》2021年第3期18-22,48,共6页Barley and Cereal Sciences

基　　金：江苏省农业科技自主创新资金[CX(19)3051]。

摘　　要：明确小麦主要农艺性状对产量的影响,可为盐城市优质高产小麦新品种的选育提供理论依据。采用灰色关联度分析法,对参加江苏省联合体区域试验的9个长江中下游小麦的12个农艺性状与产量数据进行分析。长江中下游小麦品种的农艺性状与产量的关联度大小排序为千粒质量(0.5171)、结实小穗(0.4390)、穗粒数(0.3896)、有效穗数(0.3828)、全生育期(0.3783)、旗叶宽(0.3721)、株高(0.3332)、穗长(0.3313)、不孕小穗(0.3185)、旗叶长(0.3126)、基本苗(0.2649)、高峰苗(0.2646),千粒质量是影响小麦产量的主要因素,高峰苗对产量的影响较小。在江苏盐城地区小麦育种中,应加强对千粒质量、结实小穗、穗粒数等几个性状的选育力度。The main agronomic characters of wheat cultivars have a significant effect on their yields.In order to provide a theoretical basis for selecting and breeding new wheat cultivars in Yancheng City,Jiangsu Province,the gray correlation analysis was performed to assess the relationship between 12 agronomic traits and yield of nine wheat cultivars which had been assessed in regional trials of wheat cultivars in Jiangsu Province.The results showed that different agronomic traits were correlated with yield in varying degrees as follows:thousand-grain-weight(0.5171),filled spikelet number per panicle(0.4390),total grain number per panicle(0.3896),effective panicle number per 667 m2(0.3828),full growth period(0.3783),the width of flag leaf(0.3721),plant height(0.3332),panicle length(0.3313),unfilled spikelet number per panicle(0.3185),the length of flag leaf(0.3126),basic seedling number(0.2649),and peak seedling number(0.2646).Therefore,the traits including thousand-grain-weight are main determinant factors for the yields of the wheat cultivars grown in the middle-lower Yangtze River,while peak seedling number only has a minor effect on yield.In conclusion,in selecting and breeding wheat cultivars for cultivation in Yancheng City,Jiangsu Province,the traits highly correlated with yield including thousand-grain-weight,filled spikelet number per panicle and grain number per panicle should be given priority over the others.

关 键 词：长江中下游小麦 农艺性状 灰色关联度 产量 盐城 

分 类 号：S511[农业科学—作物学]