The results are as follows: Grain number per panicle, seed density, secondary branch number, secondary branch grain number, secondary branch grain rate are significantly positively correlated with rice yield, &the yield is affected by all of them.

• 产量与每穗粒数、着粒密度、二次枝梗数、二次枝梗粒数、二次枝梗粒率呈极显著的正相关关系，这些性状对产量都有积极意义，产量是其综合作用的表现。