Inbred line 7327, 5151, 5311, Mu6, Mu4, Zhen367, Jiao51, 180 had higher grain yield, and Jiao51, 7327, 7331, 180 had higher GCA of grain yield.

• 小区产量较高的自交系有7327、5151、5311、木6、木4、贞367、交51和180,GCA效应值较高的自交系有交51、7327、7331和180;