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研究结果表明，玉米姊妹种的产量明显高于其亲本姊妹系的均值，单株产量、千粒重等也都有所提高，差异均极显著。８个性状相比，单株产量、穗长、行粒数更为突出。玉米姊妹系的一般配合力可遗传给其组配的姊妹种，应作为选育优良姊妹系的一个重要指标。
The results showed that the yield of silage maize was significantly higher than that of its sister sibling, and the yield per plant and 1000-grain weight also increased. The difference was extremely significant. Compared with 8 traits, the yield per plant, spike length and grain number were more prominent. The sisterhood of maize can be inherited to the sibling with its general combining ability and should be used as an important indicator of elite sibling breeding.