摘要
用贵州高原耐冷地方品种与野败型不育系的杂种F1和具有强恢复力的雄性不育恢复系IR26、株叶形优良的引23及广亲合品种02428等进行复合杂交,经分步聚合,逐级重组,定向选择,育成了耐冷性、恢复力强的同质恢复系Q568。通过与不同类型的不育系测交鉴定,表现出以穗粒优势为主的杂种优势和强的恢复力。对籼粳杂交后代材料选择及恢复系耐冷源的选用作了探讨。
The restorer line Q568 with better cold tolerance and strong restoring ability bred from the complex cross of Erjiunan 1 A with wild cytoplasmic male sterility/Dafangxibaigu with cold tolerance/IR26/Yin23 with better plant and leaf types/02428 with a widely compatibility, has the strong restoring ability and heterosis in grain number per ear and grain setting rate by the test cross. The selection methods of parent and cross generation in the Indica × Japonica for breeding of restorer line with cold tolerance is discussed in the paper at the same time.
出处
《贵州农业科学》
CAS
2007年第5期8-10,共3页
Guizhou Agricultural Sciences
基金
贵州省科技攻关项目子专题"耐寒
超高产杂交水稻新组合选育"[黔科合NZ字(2005)3005-15号]
贵州省年度攻关项目"杂稻新组合T优568应用技术研究及品种保护"[黔科合NY字(2007)3014号]
关键词
耐寒
杂交水稻
恢复系
特性
cold tolerance
hybrid rice
restorer line
characteristic
