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玉米品种的选育策略决定育种工作的成败。根据目前我国玉米生产实际情况,确定“从拓宽种质基础、丰富遗传多样性入手,改良品种的适应性;把国内种质良好的丰产性与热带、亚热带种质突出的多抗性融合在一起,提高育成品种的多抗性和稳产性能;把成熟早、灌浆快、配合力高、株型紧凑的塘四平头种质与丰产、大穗的旅大红骨种质融合在一起,挖掘育成品种的丰产潜力,改善商品品质”的创新理念,确立“高产、优质、多抗、广适和易制种”的育种目标,结合单倍体快速选系等技术,成功选育出配合力高、抗病抗倒能力强、适应性广的优良自交系齐3925和黄572,杂交育成高产、优质、多抗玉米新杂交种鲁单718。
Breeding strategies of maize varieties determine success or failure of breeding work. According to the current actual situation of corn production in our country, it is determined that “to broaden the germplasm base, enrich genetic diversity and improve the adaptability of cultivars; to integrate the high yield domestication of China with the outstanding resistance of tropical and subtropical germplasm To improve the multi-resistance and stable yield of bred cultivars. Combining early-maturing, fast-filling, high combining ability and compact plant type Tong 4 flat head germplasm with high yield and large spike Luda bony germplasm, Breeding potential of varieties and improving product quality ”, we established the breeding goal of“ high yield, high quality, multi-resistance, wide adaptability and easy seed production ”, combined with rapid haploid selection, With the high ability, disease resistance and lodging ability, adaptability of the excellent inbred line Qi 3925 and yellow 572, high yield, high quality, multi-resistance to new maize hybrids Ludan 718.