Y两优9918的选育及高产栽培与制种技术要点  

Breeding of the Widely Adaptable Two-line Medium Hybrid Rice Y Liangyou 9918 and Its Main Cultivation & Seed Production Techniques

作　　者：周跃良 龙俐华 贺淼尧 符呈祥 朱世军 谷松林 刘敏 薛华良 ZHOU Yue-liang;LONG Li-hua;HE Miao-yao;FU Cheng-xiang;ZHU Shi-jun;GU Song-lin;LIU Min;XUE Hua-liang(Hunan Hengde Seed Industry Technology Co.,Ltd.,Changsha 410125,PRC;Shaoyang Academy of Agricultural Sciences,Shaoyang 422000,PRC;Taojiang County Agriculture and Rural Bureau,Taojiang 413400,PRC;Leiyang Agricultural Technology Service Center,Leiyang 421800,PRC;Zhongfang County Agriculture and Rural Bureau,Zhongfang 418000,PRC;Agriculture Bureau of Heshan District of Yiyang,Yiyang 413102,PRC)

机构地区：[1]湖南恒德种业科技有限公司,湖南长沙410125 [2]邵阳市农业科学研究院,湖南邵阳422000 [3]桃江县农业农村局,湖南桃江413400 [4]耒阳市农业技术服务中心,湖南耒阳421800 [5]中方县农业农村局,湖南中方418000 [6]益阳市赫山区农业农村局,湖南益阳413102

出　　处：《湖南农业科学》2021年第2期11-14,共4页Hunan Agricultural Sciences

摘　　要：Y两优9918是以"Y58S"为母本、自选恢复系"R928"为父本配组而成的两系杂交中稻组合。2009、2011、2012年分别通过湖南省审定、国家审定和广西认定。介绍了该品种的选育经过、主要特征特性和推广应用情况。从适期播种、用种量与种植规格、合理施肥、科学管水和病虫防治5个方面总结了该品种的高产栽培技术要点,从制种基地选择与季节安排、父母本播差期安排、制种群体的培养、提高异交结实的措施和加强病害防治5个方面总结了该品种的制种技术要点。Y Liangyou 9918 is a two-line mid-season hybrid rice combination bred from the female parent"Y58S"×the male parent"R928".It passed Hunan provincial variety approval in 2009,passed the national variety approval in 2011,and received Guangxi variety certification in 2012.This article introduced the breeding process,main characteristics and application of Y Liangyou 9918,and summarized the key points of its high yield cultivation techniques from five aspects:suitable sowing time,seed consumption and planting specification,rational fertilization,scientific water management and pest control.It also summarized the key points of seed production techniques of this variety from five aspects:selection of seed production base and seasonal arrangement,arrangement of different sowing time of parents,breeding of seed population,measures to improve outcrossing rate,and enhancing disease control.

关 键 词：两系杂交中稻 Y两优9918 选育经过 特征特性 栽培技术 制种技术 

分 类 号：S511[农业科学—作物学]