玉米杂交种鲁单718 的选育策略

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。

Selective Strategy of the New Type Maize Hybrid Ludan718

The breeding strategy of the maize varieties decides success or failure for breeding work. According tothe actual situation of maize production in China, establish the breeding objectives with high-yield, high-quality,multi-resistance and wide adaptability and ease of seed. By the haploid fast selected lines technology, the high yield ofnew type maize hybrid Ludan718 had been bred by crossing Qi3925 with Huang572. The results of regional trialsshowed that Ludan718 has high yield and stable yield, much resistance, high quality, wide adaptability, mediumlate-maturing, big ear and high yield potential. This paper introduces the breeding goals, selecting methods and use ofheterosis modes about Ludan718.