Abstract: The quality traits, percentage of brown rice, rate and size of chalkiness, AC, and their genetic correlations with plant height and panicle traits were studied in parents which were used to make 3×3NCⅡ reciprocal mating and some F2 offspring populations. The results showed that the milled rice and the percentage of brown rice had significant maternal additive effects. Even though the covariance of genetic components between quality traits and other plant traits were not significant, complex relations existed in other related genetic components.