Through the study on 51 realeased summer soybean varieties in Henan province for twenty-one years,It is showed that the reason of increasing yield owe to increasing branches and pods per plant.In south central of Huanghuai district the best indexes of summer soybean breed include the limited pod character,around 3～4 effective branches,more than 50 pods per plant,around 15.0～24.0 g weight per 100 seeds,high protein,high oil or high protein and oil.

<正>1品种选择1.1种性杂交抗虫棉。1.2特征植株高大、塔形、茎秆粗状、有茸毛、株高1～1.2m,长果枝、短节枝、枝斜向上冲、结铃性好,掌状叶片,叶片大小适中、内膛透光性好。