贵州山区杂交水稻育种目标、技术路线与实践

根据多年育种实践，提出了贵州山区杂交水稻育种目标：高产、多抗(抗稻瘟病、抗寒)、优质、生育期适中；设计了相应的技术路线即异地同步胁迫育种新方法；育成了一批优良恢复系及其组合，其中汕优联合2号于加年2月通过贵州省品种审定。

Breeding Objectives, Technical Approaches and Practices of Hybrid Rice in Mountaneous Area of Guizhou

Based on the breeding practices of many years, the breeding objectives for the mountaneous area of Guizhou Province were thought to be high yield, multiple resistance (resistant to blast and coldness), good quality and suitable growth duration. To achieve these objectives, a new breeding method of synchronous screening at ecologically different locations was designed and practised, and a group of new restorer lines and their hybrids have been successfully developed. Among them, Shanyou Union 2 was certified and released to farmers' fields in Guizhou in February, 2002.