【摘要】 湘恢263是湖南怀化职业技术学院用蜀恢527作母本与自选高世代稳定恢复株系455(密阳46/明恢63∥恢647)杂交选育而成的迟熟籼型水稻新恢复系。该恢复系具有株叶形态好、分蘖力强、穗大粒多、千粒重高、恢复力强、配合力好、花粉量足、米质优、抗高温能力强、耐寒性好等特点。所配组合产量高,米质优,其中内5优263、丰源优263于2012年5月通过了湖南省农作物品种审定。更多还原

【Abstract】 Xianghui 263 is a new late-maturing indica restorer line in rice.It is developed from hybridization between Shuhui 527,a widely-used strong restorer line,and 455,a high-generation line with good restoring ability and uniform agronomic characters selected from the multiple cross of Milyang 46/Minghui 63∥Hui 647,by Huaihua Vocational and Technical College,Hunan.Xianghui 263 is characteristic of good plant type,strong tillering ability,large panicles,heavy grains,strong restoring ability,high combining ability,heavy pollen load,good grain quality and strong heat and cold tolerance.The F1 hybrids derived from the restorer line of Xianghui 263 show generally high yield and good grain quality.Among them,Nei 5 You 263(Neixiang 5 A/Xianghui 263) and Fengyuanyou 263(Fengyuan A/Xianghui 263) were certified for commercial production by Hunan Provincial Crop Variety Appraisal Committee in May,2012.更多还原