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近10年国家审定水稻品种分析
引用本文:张现伟,李经勇,官治文,姚雄,肖人鹏,刘强明,唐永群. 近10年国家审定水稻品种分析[J]. 农业科学与技术, 2017, 18(3)
作者姓名:张现伟  李经勇  官治文  姚雄  肖人鹏  刘强明  唐永群
作者单位:1. 重庆市农业科学院,重庆,402160;2. 重庆市种子管理站,重庆,400060
基金项目:重庆市社会事业与民生保障科技创新专项(cstc2016shms-ztzx0013
摘    要:分析了2006 ~2015年国审水稻品种情况.10a间平均每年审定49.4个品种.在品种结构上,三系杂交稻品种比例呈现下降趋势,两系杂交稻品种比例快速增长;科研院校选育的品种数量呈下降趋势,以种业公司为主体的商业化育种快速发展,逐渐成为水稻育种的主要模式.在品质结构上,审定的常规稻品种优质率较高,杂交稻优质率呈下降趋势,品质改良亟需加强.

关 键 词:水稻  国审品种  育种主体  品种类型  优质率

Analysis of the Nationally Registered Rice Varieties in the Last Decade
Xianwei ZHANG,Jingyong LI,Zhiwen GUAN,Xiong YAO,Renpeng XIAO,Qiangming LIU,Yongqun TANG. Analysis of the Nationally Registered Rice Varieties in the Last Decade[J]. Agricultural Science & Technology, 2017, 18(3)
Authors:Xianwei ZHANG  Jingyong LI  Zhiwen GUAN  Xiong YAO  Renpeng XIAO  Qiangming LIU  Yongqun TANG
Abstract:The nationally registered rice varieties during 2006-2015 were analyzed and there were 49.4 varieties on average annually registered in the last decade.In terms of the structure of varieties,there was a decreasing trend for the proportion of three-line hybrid rice varieties but a rapid increase for that of two-line hybrid rice varieties.The percentage of rice varieties developed by scientific research institutions was decreasing but that developed by seed companies kept a rapid increase,indicating the commercial breeding conducted by seed companies has become a principal model in rice breeding.With regard to grain quality of varieties,the conventional rice varieties showed an increasing trend while the hybrid rice variaties had a decreasing trend in the proportion of high quality varieties,indicating hybrid rice needs improving more in grain quality in breeding programs.
Keywords:Rice  Nationally registered variety  Breeding body  Varietal type  High-quality rate
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