四川农业大学学报 ›› 1987, Vol. 5 ›› Issue (01): 11-16.doi: 10.16036/j.issn.1000-2650.1987.01.003

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玉米籽粒几个物理性状与粒重的关系及其遗传研究

杨克诚, 赖仲铭, 郑有良   

  1. 四川农业大学数量遗传研究室, 雅安
  • 收稿日期:1986-05-23 出版日期:1987-03-31 发布日期:2017-04-22

STUDIES ON RELATIONSHIP BETWEEN KERNEL PHYSICAL TRAITS AND WEIGHT AND THEIR INHERTANCES IN CORN

Yang Kecheng, et al   

  1. Sichuan Agricultural University, Ya'an, Sichuan, China
  • Received:1986-05-23 Online:1987-03-31 Published:2017-04-22

摘要: 利用通径分析研究了玉米籽粒几个物理性状与粒重的关系,通过配合力分析研究了它们的遗传。结果表明,粒重主要取决于粒宽,其次才取决于粒长和粒厚。粒宽、粒长、粒厚主要受加性基因效应的控制。因此,通过亲本选择改良籽粒体积,可以增加玉米的产量。

关键词: 玉米, 遗传力, 配合力

Abstract: Relationship between physical traits of kernel and its weight in corn were studied by path coefficient analysis. Their genetic problems were discussed by analysis of combining ability. The results indicated that kernel weight depended chiefly upon its width, and secondly, upon kernel length and depth. Width, length and depth of kernel volume could be improved by selection of parents to increase kernel weight in corn breeding.

Key words: CORN, HERITABILITY, COMBINING ABILITY