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中国农学通报

中国农学通报 ›› 2005, Vol. 21 ›› Issue (1): 142-142.

所属专题： 小麦

• 目次 • 上一篇    下一篇

黄淮冬麦区旱地区试小麦产量与产量三因素通径分析

王继滨,李凤云,李红芹,刘爱华,赵国锦,樊桂英   

  • 出版日期:2005-01-05 发布日期:2005-01-05

Path Analysis Between Yield and Yield Components On Dry-land Winter Wheat Variety of the Huang-Huai Region

Wang Jibin, Li Fengyun, Li Hongqin, Liu Aihua, Zhao Guojin, Fan Guiying   

  • Online:2005-01-05 Published:2005-01-05

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摘要： 对1997~1998年度参加全国旱地区试的16个冬小麦品种产量三因素与产量进行相关和通径分析，结果表明三因素都与产量具有正相关关系，其相关系数大小顺序为：穗粒数＞千粒重＞公顷穗数；直接通径系数大小顺序为：穗粒数＞公顷穗数＞千粒重。因此在选育旱地小麦品种时应注重协调好产量三因素之间的关系，在取得一定的群体穗数的基础上,以千粒重和穗粒数为重点性状。

Abstract: This article analyzed 16 winter wheat varieties which tested in the state dry-land variety-examination in 1997~1998. The result shows that there is always positive correlation between yield and yield components ,its sequence is: grain number＞1000-grain weight＞spike number. The sequence of direct path coefficient is :grain number＞spike number ＞1000-grain weight. Then , during breeding of dry-land wheat , we should coordinate the relationship ,and base on certain population spike , emphasize the characters of grain number and 1000-grain weight.