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中国农学通报 ›› 2022, Vol. 38 ›› Issue (9): 27-32.doi: 10.11924/j.issn.1000-6850.casb2021-0382

所属专题: 生物技术 玉米

• 农学·农业基础科学 • 上一篇    下一篇

不同玉米种质材料植株与穗粒性状的灰色关联度分析

纪坤1(), 王彬1, 赵博文1, 薛浩1, 吴建民2, 朱晓建1, 王依欣1, 赵海军1, 韩赞平1()   

  1. 1河南科技大学,河南洛阳 471023
    2洛宁县农业技术批广中心,河南洛阳 471700
  • 收稿日期:2021-04-13 修回日期:2021-08-09 出版日期:2022-03-25 发布日期:2022-04-02
  • 通讯作者: 韩赞平
  • 作者简介:纪坤,男,1999年出生,河南焦作人,在读本科生,主要从事玉米生物学研究。通信地址:471023 河南省洛阳市洛龙区开元大道263号,Tel:18239907483,E-mail: zzjikun@163.com
  • 基金资助:
    河南省科技攻关计划项目“玉米C型细胞质雄性不育基因的克隆及种质创制”(212102110244);河南科技大学科研启动基金项目“玉米优异种质资源创制”(13480067)

Different Maize Germplasm Materials: Grey Correlation Analysis of Plant and Ear-kernel Traits

JI Kun1(), WANG Bin1, ZHAO Bowen1, XUE Hao1, WU Jianmin2, ZHU Xiaojian1, WANG Yixin1, ZHAO Haijun1, HAN Zanping1()   

  1. 1Henan University of Science and Technology, Luoyang, Henan 471023
    2Luoning County Agricultural Technology Approval Center, Luoyang, Henan 471700
  • Received:2021-04-13 Revised:2021-08-09 Online:2022-03-25 Published:2022-04-02
  • Contact: HAN Zanping

摘要:

为了掌握生产上广泛使用的12个玉米单交种的主要农艺性状间的关系,对被测试材料的植株、穗粒、产量以及品质性状进行了灰色关联度分析。结果表明:与产量密切相关的植株与穗粒性状是出籽率、行粒数、穗粗、穗粒重、百粒重等,其关联度在0.4353~0.3327。与粗蛋白、粗脂肪、粗淀粉和赖氨酸含量等营养品质密切相关的植株与穗粒性状是出籽率、株高、穗长、轴粗、行粒数等,其关联度在0.5106~0.3929。综上所述,对于不同玉米种质材料进行遗传改良宜在保证正常生长的前提下,优先对出籽率、百粒重进行选择,还要注重对株高、穗长、轴粗、行粒数等性状的选择,进而提高育种效率。

关键词: 玉米, 种质资源, 植株性状, 穗粒性状, 灰色关联度分析

Abstract:

To study the relationship among the main agronomic traits of 12 maize single cross hybrids, the grey correlation analysis method was used to analyze the grey correlation degree of the main traits of plant, ear-kernel, yield and quality of the tested materials. The results showed that the plant and ear-kernel traits closely related to yield were kernel rate, kernel number per row, ear diameter, kernel weight per ear, 100-kernel weight and etc. The correlation degree was from 0.4353 to 0.3327. Plant and ear-kernel traits closely related to nutritional qualities such as crude protein, crude fat, crude starch and lysine content were kernel rate, plant height, ear length, cod diameter and kernel number per row, and etc. The correlation degree was 0.5106-0.3929. In summary, for the genetic improvement of different maize germplasm materials, it is necessary to give priority to the selection of kernel rate and 100-kernel weight on the premise of ensuring normal growth, and more attention should also be paid to the selection of plant height, ear length, cob diameter, kernel number per row, thus improving the breeding efficiency.

Key words: maize, germplasm resources, plant traits, ear-kernel traits, grey correlation analysis

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