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早熟优良玉米种质资源匮乏,已经成为黑龙江省玉米育种可持续发展中重要的限制因素之一,因此研究黑龙江省玉米杂交种利用现状及主要种质基础,对于指导黑龙江省玉米遗传育种具有重要理论与实践意义。本研究根据黑龙江省种子管理局的有关统计数据,分析了黑龙江省“十五”、“十一五”期间每年种植面积在超过3.33万hm2的玉米品种种质基础和血缘,研究了黑龙江省玉米主要种质资源和杂种优势模式。
The lack of good early maturing corn germplasm resources has become one of the important limiting factors in the sustainable development of maize breeding in Heilongjiang Province. Therefore, it is important to study the utilization status and main germplasm base of maize hybrids in Heilongjiang Province, And practical significance. Based on the relevant statistics of Heilongjiang Seed Authority, this study analyzed the germplasm and germplasm of maize varieties with more than 33300 hm2 of acreage per year during Heilongjiang Province during the “Tenth Five-Year Plan” and “Eleventh Five-Year Plan” periods. Heilongjiang Province, the main maize germplasm resources and heterosis patterns.