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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (11): 99-102.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

墨西哥血缘玉米自交系淀粉含量与穗部性状灰色关联度分析

李北齐1,王贵强1,金益2,路运才1,吴玉梅1,李三勋1   

  • 收稿日期:2009-12-21 修回日期:2010-01-18 出版日期:2010-06-05 发布日期:2010-06-05
  • 基金资助:

    黑龙江省高淀粉玉米种质资源评价与改良方法研究

Analysis of Grey Relational Degree on Starch Content of Mexico corn inbred line and their Characters

Li Beiqi1, Wang Guiqiang1, Jin Yi2, Lu Yuncai1, Wu Yumei1, Li Sanxun1   

  • Received:2009-12-21 Revised:2010-01-18 Online:2010-06-05 Published:2010-06-05

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摘要：

本文采用灰色关联度分析方法，分析了来自CIMMYT的Pob45、Pob46、Pob69、Pob70四个改良群体自交系的玉米淀粉含量和穗部性状的关系，得出与淀粉含量关系密切的穗部性状是：穗重＞行粒数＞百粒重＞穗粗＞穗长＞穗行数。玉米淀粉主要存在于胚乳细胞中，而胚乳重量占玉米籽粒90%以上。因此，选择行粒数多、百粒重大的材料有利于得到淀粉含量高的自交系。

关键词: 大庆湿地, 大庆湿地, 生物多样性, 保护策略

Abstract:

The grey relational degree between starch content and characters in CIMMYT Pob45, Pob46, Pob69, Pob70 was analyzed in this article. The grey relational degree order is ranged from maximum to minimum: ear weight> seeds of line>100-kernel weight>ear wide> ear length >Lines of ear. The corn starch mainly exists in the endosperm cell, but the endosperm weight occupies the corn grain over 90%.Therefore, a high-starch corn inbred would be chosen from the more seeds of line and heavy 100-kernel weight in breeding materials.