Canonical correlation analysis of the yield and seed and grain quality characters of somatic plant lines of rice early maturing restorer 402

53 somatic lines from rice restoring line 402 with early maturity were used as materials,and their 23 characters were divided into agronomy character,seed character and grain quality character group.Canonical correlation among those characters were studied in this paper. The results showed that the correlations between the grain weight per plant and both agronomy and grain quality characters were significant, but the grain weight per plant and seed characters were not significant. Canonical correlation among 3 groups of character including agronomy, seed and grain quality character were significant at 1?%level.The characters,which had significant effect on canonical correlation included grains per panicle, grain weight and grain shape index in 3 groups of characters.The correlation between panicle per plant and grain shape index, the groups of agronomy characters and milled quality characters were not significant.