玉米杂交种产量与主要农艺性状的关联分析  

Correlation Analysis of Maize Yield and Agronomic Traits

作　　者：龙舟 杨威 冯艳飞 任国鑫 刘丽滨 冯东升 Long Zhou;Yang Wei;Feng Yanfei;Ren Guoxin;Liu Libin;Feng Dongsheng(College of Agronomy,Heilongjiang Bayi Agricultural University/Heilongjiang Key Laboratory of Modern Agricultural Cultivation Technology and Crop Germplasm Improvement,Daqing 163319)

机构地区：[1]黑龙江八一农垦大学农学院/黑龙江省现代农业栽培技术与作物种质改良重点实验室,大庆163319

出　　处：《黑龙江八一农垦大学学报》2022年第5期1-5,共5页journal of heilongjiang bayi agricultural university

基　　金：黑龙江农垦总局重点科研计划项目(HKKY190102-02);黑龙江省外国专家项目(利用玉米单倍体技术进行种质资源创新:G2020016)。

摘　　要：为了明确玉米杂交种各农艺性状与产量的相关性与密切程度,以国外引进的玉米杂交种为基础材料选育的20份DH系与四个测验种,采用NCII遗传交配设计得到80个杂交组合,继而通过对80个杂交组合的10个农艺性状和产量进行了相关分析和灰色关联分析。相关分析结果表明,玉米杂交种各农艺性状与产量相关系数由大到小依次是穗粗、百粒重、轴重、出籽率、籽粒深度、穗长、秃尖,除秃尖外,其他农艺性状与产量都是正相关;玉米杂交种产量与各性状的灰色关联度排序为穗粗(0.8422)>百粒重(0.8352)>出籽率(0.8348)>轴重(0.8261)>穗行数(0.8105)>籽粒深度(0.7982)>穗长(0.7859)>行粒数(0.7840)>秃尖(0.7759)>株高(0.7737)。In order to define the maize hybrids the correlation of agronomic traits and yield and close degree,on the basis of the imported maize hybrid material selection of 20 DH system with four kinds of test,obtained by NCII mating design genetic 80 hybrid combinations,correlation analysis and grey correlation analysis were carried out for 10 agronomic traits and yield of 80 cross combinations.In the correlation analysis,the traits with strong correlation with yield were axis weight,seed yield,grain depth and hundred grain weight,while the traits with weak correlation with yield were plant height,number of panicle rows,number of panicle grains,panicle length,etc.The order of grey correlation between yield and characters was grain diameter(0.8422)>hundred grain weight(0.8352)>seed yield(0.8348)>axis weight(0.8261)>ears row number(0.8105)>grain depth(0.7982)>ear length(0.7859)>row grain number(0.7840)>barren tip(0.7759)>plant height(0.7737).

关 键 词：玉米 产量 相关分析 灰色关联分析 

分 类 号：S513[农业科学—作物学]