Breeding of New Japonica-indica Hybrid Rice Combination——Chunyou 618  

粳不籼恢亚种间杂交稻新组合春优618的选育(英文)

作　　者：吴明国[1] 林建荣[1] 宋昕蔚[1] 阮关海[2] 

机构地区：[1]中国水稻研究所,浙江杭州310006 [2]浙江省农业科学院,浙江杭州310021

出　　处：《Agricultural Science & Technology》2012年第8期1691-1694,共4页农业科学与技术（英文版）

基　　金：Supported by Fundamental Scientific Research Project of China National Rice Research Institute(2012RG001-2);"Selective Breeding and Demonstration of Super Rice"of Ministry of Agriculture;Zhejiang 0406 Project;National High-tech R&D Program of China(863Program)(2010AA101301)~~

摘　　要：[Objective] The aim was to select and breed Chunyou 618 which is a novel combination among japonica-indica hybrid rice subspecies. [Method] Chunyou 618 is a japonica-indica hybrid rice combination developed from Chunjiang 16A, a late japonica CMS line with dwarfness and early anthesis time, and C18, an indicaclinous wide compatibility restorer line. In addition, the concerning characters were researched. [Result] Chunyou 618, which is japonica inclining, proved high in pro- duction and in resistance to lodging with Cheng＇s index at 15. It is of moderate re- sistance against Xanthomonas oryzae and stripe virus disease, of moderate susceptibility on rice blast, and of susceptibility on Nilaparvata lugens. The indices of rice quality achieved departmental standard 4 and grade 4 of Cooking Rice Variety Quality, respectively. [Conclusion] Chunyou 618 enjoys strong heterosis, strong stem, good lodging resistance, large panicles, good cold tolerance, high yield and wide adaptability, which is suitable to be grown in Zhejiang Province as single cropping late rice.[目的]选育粳不籼恢亚种间杂交稻新组合春优618。[方法]用早花时矮秆早熟晚粳不育系春江16A与偏籼型广亲和恢复系C18配置得到籼粳亚种间杂交稻组合-春优618,并对其主要特征特性进行观察和分析。[结果]春优618产量高,较耐肥抗倒,程氏指数为15,属偏粳型,中抗白叶枯病和条纹叶枯病,中感稻瘟病,感褐稻虱,两年米质各项指标达到食用稻品种品质部颁4等和4等。[结论]春优618具有杂种优势强、茎秆粗壮、抗倒性好、穗形大、耐寒性好、产量高、适应性广等特点,适宜在浙江省作单季晚稻种植。

关 键 词：Japonica-indica hybrid rice Chunyou 618 HETEROSIS BREEDING 

分 类 号：S511[农业科学—作物学]