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Exploring Yield Components and Cultivation Techniques of Field Seedling Cotton after Wheat
Author(s): LI Wei, DAI Baosheng, LU Huaping, ZHENG Linzhang, NAN Cexiong, YI Li, CHEN Xiaowei, HUANG Xiaoli
Pages: 5984-
5986
Year: 2013
Issue:
24
Journal: Hubei Agricultural Sciences
Keyword: field seedling cotton after wheat; yield components; partial correlation analysis; path analysis; multiple regression analysis;
Abstract: 为揭示麦后直播棉产量构成因素对产量的影响规律,采用偏相关分析、通径分析和多元回归分析,对湖北省2011~2012年麦后直播棉组区试6个麦后直播棉品种(系)的产量及其构成因素进行统计分析.结果表明,产量构成因素的变异系数大小为,单株铃数>密度>铃重>衣分;产量构成因素与产量偏相关分析显示,单株铃数与产量的偏相关程度最高(r=0.7794**),铃重次之(r=0.721 0**),密度再次之(r=0.525 9**),衣分(r=0.459 3*)最小.产量构成因素对产量的直接通径系数都为正值,这与偏相关分析的结果是一致的.据此结果,提出了麦后直播棉高产育种和高产栽培的主攻方向.
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