抗虫杂交棉纤维性状与产量性状关系的研究

Study on the Relationship between Fiber and Yield Character of Hybrid Cotton Varieties with Insect Resistance

以中棉29号、湘杂棉3号杂交棉为试验材料,采用关联度分析、偏相关分析、主成分分析、通径分析等方法探讨棉纤维性状与产量性状的关系。结果表明:纤维性状、产量性状之间存在一系列相关关系和关联关系;在品质育种中选择纤维长度同时注重低马克隆值、高比强度材料定向选择与培育,可获得优质棉组合;在产量育种中注重株结铃数、铃重、衣分等性状选择与培育,可获得高产棉组合。

The relationship between fiber and （hybrid cotton .varieties） was studied by using the principal component analysis and path analysis. The yield characters of Zhongmian 29 and Xianzamian 3 relative grade analysis, partial correlated analysis, results showed that there was a series of correlated and relative relationship between fiber and yield characters. The materials with fiber length, lower micronaire value and high specific fiber strength characters should be paid more attention to in its quality breeding and the bolls per plant, boll weight and lint percentage characters should be paid more attention to in its yield breeding.