优质早籼不育系瑞115A的选育与应用  

Breeding and Application of High-quality Early Indica Rice Sterile Line Rui 115A

作　　者：刘跃清[1] 张红林[1] 刘海平[1] 钟晓英[1] 谢丽芳 黎晓宇[1] 张璞[1] 李德悦[1] 张瑞祥[1] 

机构地区：[1]江西省赣州市农业科学研究所国家水稻产业技术体系赣州综合试验站,江西赣州341000 [2]江西省赣州市旱作物科学研究所,江西赣州341000

出　　处：《江西农业学报》2012年第5期10-12,共3页Acta Agriculturae Jiangxi

基　　金：国家高技术研究发展计划(863计划)(2007AA10Z180);国家科技攻关计划(2001BA507A14);现代农业产业技术体系建设专项(2011~2015);江西省科技支撑计划项目(2009BNA03900;20111BBF60007);江西省重点科技成果推广计划(20112BBI90008)

摘　　要：通过选育稻米品质优的不育系,为杂交稻配组提供熟期适中、品质优的中间育种材料。从2002年开始,用江ⅡB与中21B杂交得到的保持系与金23A测交,经过多代回交转育,育成了籼型优质不育系瑞115A。其具有育性稳定、柱头外露率高、株叶形态理想、米质优、抗病、配合力强等特点。并配组育成了优质早稻新组合瑞丰优106。To provide the intermediate materials with medium maturity and high quality for the breeding of hybrid rice,the present study was conducted to breed high-quality male sterile rice lines.Since the year 2002,rice material Jin 23A was test-crossed with the maintainer line derived from Jiang ⅡB and Zhong 21B,and the testcross material was successively backcrossed for several generations,finally high-quality indica rice male sterile line Rui 115A was bred.Rui 115A showed the characteristics of stable fertility,high stigma exsertion rate,ideal plant and leaf shape,fine grain quality,strong disease-resistance and high combining ability.The new high-quality early rice combination Ruifengyou 106 was bred from Rui 115A.

关 键 词：杂交水稻 瑞115A 优质 选育 应用 

分 类 号：S511.032[农业科学—作物学]