Primary branch number, secondary branch number, primary branch grain number, secondary branch grain number and secondary branch grain rate are significantly positively correlated with grain number per panicle.

• 一次枝梗数、一次枝梗粒数、二次枝梗数、二次枝梗粒数以及二次枝梗粒率都与每穗粒数呈极显著的正相关关系，这些性状的增加将有助于穗粒数的增加。