采用分子标记技术育成优质抗病杂交稻新组合中优218  

Breeding and Application of Indica Hybrid Rice Zhongyou 218 by Molecular Marker-Assisted Selection

作　　者：彭应财[1] 李文宏[2] 方又平 樊叶扬[1] 

机构地区：[1]中国水稻研究所国家水稻改良中心,浙江杭州310006 [2]合肥丰乐种业股份有限公司,安徽合肥230031 [3]江西省种子管理站,江西南昌330046

出　　处：《杂交水稻》2004年第3期13-16,共4页Hybrid Rice

基　　金：国家"8 63"计划项目 (2 0 0 3AA2 0 70 3 0;2 0 0 1AA2 410 2 4) ;国家自然科学基金项目 (3 9770 45 6) ;浙江省自然科学基金项目(3 9945 5 )

摘　　要：中优 2 18是用中国水稻研究所采用分子标记辅助育种技术培育的含白叶枯病抗性基因Xa2 1的恢复系中恢 2 18,与印水型高异交率优质不育系中 9A组配出的中晚兼用型杂交稻新组合。该组合连续多年参加国家南方稻区区试、江西省区试和各地的试种示范 ,表现高产稳产 ,米质优 ,抗至中抗稻瘟病 ,抗白叶枯病 ,适应性广 ,制种产量高 ,于 2 0 0 3年 3月通过江西省品种审定。Zhongyou 218,a new indica hybrid rice combination derived from the cross of Zhong 9A/Zhonghui 218,was developed recently by the China National Rice Research Institute. Its restorer line Zhonghui 218 with the Xa21 gene resistant to bacterial leaf blight (BLB) was bred through the molecular marker-assisted selection (MAS) technique. It could be grown as a late-season or middle-season rice. It was characteristic of high and stable yield potential,good grain quality,resistance to blast and BLB, wide adaptability and high yield of F 1 seed production. It was registered and released to commercial production in Jiangxi Province in March, 2003. Its yield performance, major agronomic characters, grain quality and pest resistance were introduced. The key points of its cultural management and hybrid seed production techniques were also given in this paper.

关 键 词：杂交水稻 中优218 分子标记辅助选择(MAS) XA21 抗白叶枯病 选育 

分 类 号：S336[农业科学—作物遗传育种] S332.2[农业科学—农艺学]