郑单958带给我们的创新思路和发展机遇

Revelation and Challenges on Maize Breeding Strategy Revealed by Hybrid Zhengdan 958

玉米商业育种要求协调高产与稳产的关系,缩小遗传产量与实际产量之间的差距,就要对育种材料和技术路线做出新的选择。循环育种策略的实践基础是统一和简化的杂种优势模式。商业育种满足生产栽培技术进步对品种的需求,追求高效率不断地培育创新型新杂交种,就要采用高密度育种策略。

Balance between yield potential and yield stability, and minimizing the gap between genetic and realized yields are the basic consideration of breeding efforts for commericial maize production. Breeders have to make choices in breeding materials and strategies. Recycling is the basic strategy, and a simple and acceptable heterotic pattern is the basis of maize breeding efforts. High plant density in breeding nursery should be a simple and effective approach to develop and distinguish elite inbred lines to meet the demand for new hybrids for comericial maize production.