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玉米杂交种主要农艺性状的相关与通径分析
引用本文:张京社,杨玉东,王志忠,赵俊彪.玉米杂交种主要农艺性状的相关与通径分析[J].山西农业科学,2006,34(1):23-25.
作者姓名:张京社  杨玉东  王志忠  赵俊彪
作者单位:1. 山西省农业科学院,山西,太原,030031
2. 山西农业大学农学院,山西,太谷,030801
3. 长子县种子公司,山西,长子,046000
摘    要:对103个玉米杂交种主要农艺性状的相关与通径分析表明,穗粗、行粒数、穗重、穗长、穗行数与单株粒重间均为正相关且相关系数较大,穗粗、行粒数、穗重、穗长、穗行数、百粒重对单株产量的直接通径系数也较大,故穗部性状在影响子粒产量诸因素中占主导地位。穗重是玉米单株产量的重要指标。同时指出,玉米杂交种的选育要注意到各农艺性状协调,找出适合当地的高产的杂交种。

关 键 词:玉米杂交种  相关系数  通径分析  单株粒重
文章编号:1002-2481(2006)01-0023-03
收稿时间:2004-04-18
修稿时间:2004年4月18日

Corelations and Path Analysis of Major Agronomic Character in Maize
ZHANG Jing-she,YANG Yu-dong,WANG Zhi-zhong,ZHAO Jun-biao.Corelations and Path Analysis of Major Agronomic Character in Maize[J].Journal of Shanxi Agricultural Sciences,2006,34(1):23-25.
Authors:ZHANG Jing-she  YANG Yu-dong  WANG Zhi-zhong  ZHAO Jun-biao
Institution:1. Shanxi Academy of Agricultural Sciences, Taiyuan 030032, China ; 2. Agronomy College , Shanxi Agriculture University, Taigu 030801, China ; 3. Seeds Company in Zhangzi ,Zhangzi 046000, China
Abstract:Correlation and path analysis of maize major agronomic characters were made in 103 maize hybrids. The results indicated that ear diameter ,rows per ear,ear weight,ear length,and rows per ear to seeds weight of per plant showed positive and more great correlationship than the others.The results of path analysis indicated that directly path coefficients of those characters to seeds weight of per plant is positive and more greatly than the others.Therefore the biggest influencing factor to seeds weight of per plant lies in charactes of maize spike.Ear weight is a important index to the yield of per maize plant. Meantime, when selecting high grain yield hybrids of maize,we must pay more attention to adjust each character in harmorious way.
Keywords:Maize hybrid  Correlation coefficient  Path analysis  Seeds weight of per plant
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