14个玉米品系主要农艺性状与产量的灰色关联度分析  

Analysis of grey relational degree between main agronomic characters and yield of 14 maize strains

作　　者：王平喜 进茜宁[1,2] 吴向远 张晓祥[1,2] 汪亮 陈士林 WANG Pingxi;JIN Xining;WU Xiangyuan;ZHANG Xiaoxiang;WANG Liang;CHEN Shilin(College of Life Science and Technology,Henan Institute of Science and Technology,Xinxiang 453003,China;Henan Collaborative Innovation Center of Modern Biological Breeding,Xinxiang 453003,China;Beijing Lantron Seed Company Limited.Zhengzhou 450000,China)

机构地区：[1]河南科技学院生命科技学院,河南新乡453003 [2]现代生物育种河南省协同创新中心,河南新乡453003 [3]北京联创种业有限公司,河南郑州450000

出　　处：《河南科技学院学报（自然科学版）》2021年第5期12-18,共7页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南科技学院高层次人才计划(103020221002/005,103020221002/021,2015007,2016003)。

摘　　要：为探究玉米品系的主要农艺性状与产量间的关系,对14个玉米品系的主要农艺性状与产量进行了灰色关联度分析.结果显示,14个玉米品系的主要农艺性状与产量的灰色关联度大小依次为:穗粗﹥行粒数﹥穗位叶叶长﹥茎粗﹥穗长﹥穗位高﹥雄穗分枝数﹥穗位叶叶宽﹥雄穗主轴长﹥穗上叶叶夹角>株高>穗位叶叶面积>穗行数>秃尖长.对各玉米品系的主要农艺性状间的关联度分析表明,各玉米品系的穗长与行粒数、穗位叶叶面积与穗位叶叶宽具有较高的关联度.因此,在玉米育种实践过程中,宜选择果穗较粗、行粒数较多、穗位叶较长、茎秆粗壮的玉米品系.In order to explore the relationship between the main agronomic traits and yield of 14 maize strains,the grey correlation degree analysis was carried out on the main agronomic traits and yield of 14 maize strains.The results showed that the grey correlation between the main agronomic traits and yield of 14 maize strains was ranked as follows:the ear diameter>the kernel number per row>the ear leaf length>the stem diameter>the ear length>the ear height>the tassel branch number>the ear leaf width>the main axis of the tassel length>the angle of the leaf above the ear>the plant height>the ear leaf area>the ear row number>the bald-tip length.The correlation degree analysis of the main agronomic traits of each maize strain showed that there was a high correlation degree between the ear length and the number of grains in row,the leaf area at ear position and the leaf width at ear position.Therefore,in the process of maize breeding practice,it is advisable to choose the maize strains with thicker ear,more grains in row,longer leaf at ear position and thicker stem.

关 键 词：玉米 品系 农艺性状 产量 灰色关联度分析 

分 类 号：S513[农业科学—作物学]