欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (8): 142-145.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

高产栽培条件下夏玉米穗部性状研究

连艳鲜 索江华   

  • 收稿日期:2009-11-23 修回日期:2009-12-15 出版日期:2010-04-20 发布日期:2010-04-20

Studies on characters of ear of Summer maize under High-yield Cultivation

Lian Yanxian, Suo Jianghua   

  • Received:2009-11-23 Revised:2009-12-15 Online:2010-04-20 Published:2010-04-20

PDF (PC)

1070

摘要：

本文采用灰色关联分析理论，对16个玉米杂交种穗部性状与产量的关系进行研究。结果表明，在高产栽培条件下，玉米产量与穗部性状的关联度排序为：粒数/m2＞千粒重＞穗粒数＞出籽率＞穗行数＞行粒数＞穗粗＞穗数/hm2＞穗长＞秃尖长。进一步分析表明与高产栽培条件相适应的杂交种是单位面积粒数较多、穗粒数和千粒重较高的中大穗耐密型玉米杂交种，出籽率较高；从玉米的形态性状来看，穗行数和穗粗对产量的影响大于行粒数和穗长对产量的影响。

关键词: 橡胶粒子, 橡胶粒子, 水势, 生理功能

Abstract:

Relativity between characters of ear and yield about 16 maize hybrids were studied with the grey system theory. The results showed that the magnitude on effects of vary characters on the yield in turn was kernel/m2、1000-kernel weight、kernel per ear、produced seed ratio、ear rows、kernel number、ear diameter、ear number/ha、ear length、bare top length. These better plant properties of maize hybrid fit in with high-yield cultivation indicated the more number of kernel/m2 and kernel per ear、the hinger weight of 1000-kerne、the hingter produced seed ratio.The ear rows and ear diameter have greater jnfluence on yield than the kernels per row and ear length.