| 近10年国家审定水稻品种分析 |
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| 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). |
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| 作者姓名： | 张现伟 李经勇 官治文 姚雄 肖人鹏 刘强明 唐永群 |
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| 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 |
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| 基金项目： | 重庆市社会事业与民生保障科技创新专项(cstc2016shms-ztzx0013 |
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| 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.
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| 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 |
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| 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). |
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| Authors: | Xianwei ZHANG Jingyong LI Zhiwen GUAN Xiong YAO Renpeng XIAO Qiangming LIU Yongqun TANG |
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| 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. |
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| Keywords: | Rice Nationally registered variety Breeding body Varietal type High-quality rate |
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