杂交早稻产量和品质性状间的典型相关分析

对２８个杂交组合及其１１个亲本的６个产量性状和１１个品质性状进行典型相关分析，结果表明：两者之间存在极显著的相关，通过育种手段可以培育出高产优质的品种；品质育种中要重视整精米率、垩白率、直链淀粉含量和胶稠度等性状的改良，直链淀粉含量和胶稠度应以中等为宜，否则影响其它品质性状的改良。

Canonical Correlation Analysis Between Quality and Yield Characters of Early Indica Hybrid Rice

The canonical correlation analysis on 6 yield characters and 11 quality characters was conducted with the materials of 28 hybrid combinations and their 11 parents in early hybrid rice. The results showed that there existed a very significant correlation between the two groups of characters, which indicates that it is possible to develop early hybrid rice combinations with both high yield and good quality. The selection of four quality characters, i.e., head rice, chalky rice, amylose content and gel consistency should be emphasized in quality breeding. Amylose content and gel consistency should be moderate, otherwise, the improvement of other quality characters will be affected.