河南农业科学 ›› 2023, Vol. 52 ›› Issue (5): 33-39.DOI: 10.15933/j.cnki.1004-3268.2023.05.005

• 作物栽培·遗传育种 • 上一篇    下一篇

150 份玉米自交系籽粒及其品质性状的综合评价

赵海军1,史佳晴1,王彬1,郭益洋1,胡小丽2,韩赞平1   

  1. (1.河南科技大学农学院,河南 洛阳 471023;2.唐河县农业农村局,河南 南阳 473400)
  • 出版日期:2023-05-15 发布日期:2023-06-08
  • 通讯作者: 韩赞平(1975-),男,河南孟津人,副教授,博士,主要从事玉米遗传改良研究。E-mail:hnlyhzp@163.com
  • 作者简介:赵海军(2001-),男,河南光山人,在读本科生,研究方向:玉米生物学。E-mail:navyzhao81192@163.com
  • 基金资助:
    河南科技大学大学生研究训练计划(SRTP)项目(2021363);河南省科技攻关计划项目(212102110141)

Comprehensive Evaluation of Grain and Its Quality Traits of 150 Maize Inbred Lines

ZHAO Haijun1,SHI Jiaqing1,WANG Bin1,GUO Yiyang1,HU Xiaoli2,HAN Zanping1   

  1. (1.College of Agriculture,Henan University of Science and Technology,Luoyang 471023,China;2.Tanghe County Agriculture and Rural Bureau,Tanghe 473400,China)
  • Published:2023-05-15 Online:2023-06-08

摘要: 对150份改良玉米自交系的籽粒(粒长、粒宽、百粒质量、容重)及其品质性状(籽粒含水量、油脂含量、蛋白质含量、淀粉含量、赖氨酸含量)进行分析,采用相关性分析、聚类分析和主成分分析方法进行综合评价,以筛选出优良自交系用于高品质玉米育种工作。相关性分析结果表明,玉米自交系籽粒含水量与蛋白质、淀粉、赖氨酸含量均呈显著或极显著正相关,与容重呈极显著负相关;淀粉含量与蛋白质、油脂含量和容重呈极显著负相关;百粒质量与粒长、粒宽均呈极显著正相关。聚类分析结果表明,玉米自交系被分为6个类群,其中,1、2类群的17N0358、17N0443在品质性状方面有明显特异性,自交系17N0358 的籽粒含水量、蛋白质含量、淀粉含量、赖氨酸含量和百粒质量均达到最高,自交系17N0443具有低籽粒含水量、低蛋白质含量、低百粒质量、高油脂的特点。主成分分析结果表明,前4个主成分(百粒质量、含水量、蛋白质含量、赖氨酸含量)的累计贡献率达73.703%;综合得分高于对照自交系B73 的自交系有8 份(17N0536、17N0560、17N0544、17N0358、17N0373、17N0470、17N0556 和17N0540)。结合聚类分析结果表明,共筛选出9份(17N0358、17N0443、17N0536、17N0560、17N0544、17N0373、17N0470、17N0556和17N0540)籽粒及其品质性状较优的自交系。

关键词: 玉米, 籽粒性状, 品质性状, 综合评价, 聚类分析, 主成分分析, 相关性分析

Abstract: The grain(grain length,grain width,100‐grain weight and bulk density)and its quality traits(grain water content,contents of oil,protein,starch and lysine)of 150 improved maize inbred lines were analyzed,and correlation analysis,cluster analysis and principal component analysis were used to comprehensively evaluate them to screen out excellent inbred lines for high‐quality maize breeding.The correlation analysis results showed that the water content of grains of inbred lines was significantly positively correlated with contents of protein,starch and lysine,and significantly negatively correlated with bulk density;Starch content was significantly negatively correlated with contents of protein,oil and bulk density;100‐grain weight was significantly positively correlated with grain length and grain width.The cluster analysis results showed that inbred lines of maize were divided into six groups.17N0358 and 17N0443 of groups 1 and 2 had obvious specificity in terms of quality traits,the water content,protein content,starch content,lysine content and 100‐grain quality of 17N0358 reached the highest,and 17N0443 had the characteristics of low grain water content,protein content,100‐grain weight,but high oil content.The results of principal component analysis showed that the cumulative contribution rate of the first four principal components(100‐grain weight,water content,protein content and lysine content)reached 73.703%.The comprehensive scores of 8 inbred lines were higher than that of the control line B73,which were 17N0536,17N0560,17N0544,17N0358,17N0373,17N047,17N0556 and 17N0540.A total of 9 inbred lines with better grain and its quality traits were screened out,which were 17N0358,17N0443,17N0536,17N0560,17N0544,17N0373,17N0470,17N0556 and 17N0540.


Key words: Maize, Grain traits, Quality traits, Comprehensive evaluation, Cluster analysis, Principal component analysis, Correlation analysis

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