Abstract: The major traits — number of tillers , number of effective tillers, plant height, etc. — of the F2, F3 and F6 progenies derived from the rice subspecies cross Pei'ai64s/Nipponbare underwent ANOVA and correlation analysis. Both parents significantly differed in traits, with great differences in phenotypic values at different locations and years. The phenotypic coefficients of variation for plant height varied greatly, from 14.4% to 22.8%. The frequency distribution of all traits, except for percentage of tillering for F2 progeny, days to heading for F3 and plant height for F6, was fairly normally distributed. Progeny also showed tremendous bidirectional segregation beyond parents for all traits . The correlations among all traits varied slightly, but the direction of variance was relatively stable. These results provide some meaningful information for mapping of quantitative trait loci and genetic improvement for rice breeding. The research implications of agronomic traits with sequenced rice varieties as parents are discussed.