小麦新品种产量及构成因素的灰色关联度分析  

Grey Relational Degree Analysis on Yield of New Wheat Varieties and Its Components

作　　者：朱红彩[1] 马海涛[1] 范永胜[1] 黄金华[1] 王玲燕[1] 张素平[1] 窦士树[1] ZHU Hong-cai;MA Hai-tao;FAN Yong-sheng;HUANG Jin-hua;WANG Ling-yan;ZHANG Su-ping;DOU Shi-shu(Xinxiang Academy of Agricultural Sciences in Henan Province,Xinxiang Henan 453003)

机构地区：[1]河南省新乡市农业科学院

出　　处：《现代农业科技》2019年第16期13-15,共3页Modern Agricultural Science and Technology

基　　金：河南省重大科技专项“高产、多抗、广适小麦新品种选育与产业化”（161100110400）

摘　　要：运用灰色关联度分析方法,对河南省最新国审的18个小麦新品种的产量与8个主要性状进行关联度分析,以探索小麦产量与主要产量构成因素之间的大小关系,旨在为小麦的遗传改良与育种利用提供依据。结果表明,各农艺性状与产量的灰色关联度大小顺序为穗粒数>成穗率>基本苗>株高>有效穗数>全生育期>最高茎蘖数>千粒重。其中,穗粒数、成穗率、基本苗、株高是制约产量的最大因素;有效穗数、全生育期、最高茎蘖数、千粒重对产量的制约力依次变小。这一结果可为小麦新品种的高产育种和栽培技术提供理论依据。Using the grey relational degree analysis method,correlation degree analysis was conducted on the yield and 8 main traits of 18 new wheat varieties in Henan Province,in order to explore the relationship between wheat yield and major yield components,and provide basis for genetic improvement and breeding utilization of wheat.The results showed that the order of grey correlation degree between agronomic traits and yield was grain number per panicle>percentage of panicles>basic seedling>plant height>effective panicle number>whole growth period>maximun tiller number.Among them,grain number per panicle,percentage of panicles,basic seedlings and plant height were the most important factors restricting yield,while the restriction of the effective panicles,whole growth period,maximum tiller number and 1 000-grain weight on yield decreased gradually.The results can provide theoretical basis for high-yield breeding and cultivation techniques of new wheat varieties.

关 键 词：小麦新品种 产量 构成因素 灰色关联度 

分 类 号：S512[农业科学—作物学]