青贮玉米自交系农艺性状的配合力分析及杂优模式探讨

Journal of Maize Sciences(2022)

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Abstract
以10份玉米自交系为母本、4份玉米骨干自交系为父本,按NCⅡ不完全双列杂交设计组配40份组合,从株高、穗位高、茎粗、绿叶数、植株鲜重和果穗鲜重6个性状进行配合力评价和对照优势分析.结果 表明,青贮玉米自交系GRL62491、GRL5256、GRL6176—般配合力较高,杂交组合GRL6176/GRL62491、GRL5256/GRL315、GRL5256/GRL62491表现较好."温带种质×光周期反应钝感的热带亚热带种质"杂种优势模式可应用于专用型青贮玉米品种选育.
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