摘要： 应用相关分析的基本原理和方法,对40余份宁夏水稻品种的9个农艺性状和5个碾米、外观品质性状进行了分析。结果表明,这两组性状间存在着显著的相关关系,每穗实粒数与整精米率和透明度有关,千粒重和单株粒重与垩白率、透明度有关,从而构成农艺和碾米、外观品质性状间的显著相关,前3个典型相关系数占总相关信息的75%以上,这表明在宁夏优质高产育种过程中,在对产量性状选择的同时,通过对每穗实粒数、千粒重和单株粒重少数几个农艺性状的选择,达到间接改良品质性状的目的,提高优质高产的育种效率。

关键词: 水稻, 品质, 典型相关, 育种

Abstract: Canonical correlation analysis between 9 agronomic characters and 5 appearance quality and milled quality was conduct.The results should there the correlation between the 2 groups of characters was significant.It were also found that the relationship between number of filled spikelet per panicle and the ratio of head rice and transparency was significant.The correlation between 1 000 kernel weight and yield weight per plant and the ratio of chalky rice was also significant.As a result,the relationship between agronomic characters and milled quality appearance quality was significant,and its canonical correlation coefficieve has 75% correlation information.So selection for superior quality characters and high yield character can be practised simultaneously for the selection of yield characters,and number of filled spikelet per panicles,1000 kernel weight and per plant by along and the quality character and breeding efficient were improved indirectly.

Key words: Rice, Quality, Canonical correlation, Breeding

中图分类号: 

• S511.01