杂交粳稻新组合徐68优201的选育与应用

Breeding and Application of New Japonica Hybrid Rice Combination Xu 68 You 201

徐68优201是江苏徐淮地区徐州农科所用徐91068A作母本,与徐恢201配组育成的优质高产多抗三系杂交粳稻新组合。全生育期150～155 d,株高115～120 cm,每穗总粒数180～200粒,结实率80%以上,千粒重25～26 g;稻米品质达部颁《食用稻品种品质》(NY/T593-2002)优质3级标准;接种鉴定中抗苗瘟、抗穗颈瘟,种植鉴定表现高抗条纹叶枯病。2009年通过国家品种审定,2010年通过江苏省品种审定。

Xu 68 You 201,Xu 91068A/Xuhui 201,is a new three-line japonica hybrid rice with fine grain quality,high and stable yielding ability and strong disease resistances,developed by Xuzhou Agricultural Research Institute.It gets matured in about 150~155 days with a plant height of 115~120 cm.Its seed-setting rate is more than 80% with 180~200 spikelets per panicle and a 1 000-grain weight of 25~26 g.Its grain quality meets the 3rd class of standards for food rice varieties on NY/T 593-2002.By inoculation identification,it is intermediately resistant to leaf blast of rice seedling and resistant to neck blast of panicles.It has a high resistance to rice stripe disease in field conditions.It was registered and released to commercial production by the National Crop Variety Appraisal Committee in 2009 and by Jiangsu Provincial Crop Variety Appraisal Committee in 2010,respectively.