籼型水稻温敏核不育系宣69S海南异地冬繁高产技术研究

摘要

Xuan 69S bred by Xuancheng agricultural seience research institute in 2002 is an indica thermo sensitive genic male sterile （TGMS） line. The length of growing period of the sterile line was influenced by temperature among years, and reproductive output was influenced by high temperature at sensitive phase of fertility alteration or low temperature at heading date. High-yield multiplication teclmiques of indica TGMS rice Xuan 69S including base location, timely sowing, breed the vigorous seedling, appropriate density, water and fertilizer management, pest control and strict impurity removal were discussed.%宣69S是安徽省宣城市农业科学研究所于2002年育成的籼型温敏核不育系？该不育系在海南三亚地区异地冬繁，其生育期长短受年度间温度高低影响，繁殖产量受育性转换敏感期高温或抽穗扬花期低温影响。从基地选择、适期播种、培育壮秧、合理稀植、科学水肥管理、病虫害防治、严格除杂等方面探讨了其高产繁殖技术。