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通过对丹东农业科学院玉米生产和育种用种质的分析 ,发现玉米种质主要集中在四大杂优群 ,利用的主要模式有 5种。重点讨论“丹玉”玉米在生产与育种上使用的主要杂优群和杂优模式选择、改良与利用等问题 ,并根据丹东育种者成功的经验和育种实践 ,对其地方种质与外来种质结合利用等提出建议。
Through the analysis of the maize production and breeding germplasm resources in Dandong Academy of Agricultural Sciences, we found that the main types of maize germplasm are four major heterosis groups. There are five main modes of utilization. This paper focuses on the selection, improvement and utilization of the major heterosis groups and hybrids used in production and breeding of “Dan-jade” maize. According to the successful experience and breeding practice of the breeders in Dandong, Quality combined with the use of other recommendations.