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玉米育种主要利用的是杂种优势,所以杂种优势类群的划分是玉米育种的重要内容。准确合理的划分玉米杂种优势群,探索最优的杂种优势模式,是选育优良组合的前提。在对玉米种质改良、扩增及创新时也必须遵循杂种优势群间优势模式的原理,这样才能避免事倍功
Maize breeding mainly uses heterosis, so the division of heterosis groups is an important part of maize breeding. Accurate and reasonable classification of maize heterotic groups, to explore the optimal mode of heterosis is a prerequisite for breeding excellent combinations. In the improvement, expansion and innovation of maize germplasm, we must also follow the principle of superiority patterns among heterotic groups in order to avoid duplication