Ear length which direct to the yield were significant difference among most of the combination, cob diameter and no kernels of ear were significant lower than the maize line.

• 其中，与产量呈正相关的穗长在绝大多数组合中表现为极显著正效应，呈负相关的秃尖长和轴重绝大多数表现为显著负效应。