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<正>中国与印度尼西亚杂交水稻技术合作项目近日在雅加达正式启动。该项目是在中国与印尼两国政府关于援印尼杂交水稻技术合作项目换文的框架协议下立项实施的,由中国商务部和印尼农业部监管,袁隆平农 相似文献
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翟朝辉 《世界热带农业信息》2011,(2):27-27
中国与印度尼西亚杂交水稻技术合作项目日前在雅加达正式启动。该项目是在中国与印尼2国政府关于中国印尼杂交水稻技术合作项目换文的框架协议下立项实施的,由中国商务部和印尼农业部监管,袁隆平农业高科技股份有限公司(隆平高科)和印尼农科院执行。 相似文献
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广西杂交水稻制种从1976年起至今已将近30年的历史,本文通过对广西杂交水稻制种技术的总结,提出杂交水稻高产制种主要技术。 相似文献
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HI JANG Min ZOU Ying-bin JIANG Peng XIA Bing Md Ibrahim AO He-jun 《中国农业科学(英文版)》2011,10(10):1537-1544
Chinese super hybrid rice breeding project has developed many new varieties with great yield potential.It is controversial which yield component should be emphasized in super hybrid rice production.The present study was conducted to compare super hybrid rice with common hybrid and super inbred rice and analyze contributions of yield components to grain yield of super hybrid rice under experimental conditions,and evaluate relationships between grain yield and yield components of super hybrid rice in farmer's paddy fields.Field experiments were done in Changsha,Guidong,and Nanxian,Hunan Province,China,from 2007 to 2009.Eight super hybrid varieties,one common hybrid variety,and one super inbred variety were grown in each location and year.Rice production investigation was undertaken in high-yielding (Guidong),moderate-yielding (Nanxian),and low-yielding (Ningxiang) regions of Hunan Province,China,in 2009.Grain yield and yield components were measured in both the field experiments and rice production investigation.Super hybrid rice varieties outyielded common hybrid and super inbred varieties across three locations and years.Yield potential has been increased by 11.4% in super hybrid rice varieties compared with common and super inbred varieties.The higher yield of super hybrid varieties was attributed to improvement in panicle size.Panicles per m2 had the highest positive contribution to grain yield with the exception under yield level of 10.0 to 12.0 t ha-1,and was positively related to grain yield in farmer's field at all of the high-,moderate-,and low-yielding regions.Our study suggests that panicle per m2 ought to be emphasized in super hybrid rice production. 相似文献
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中国杂交水稻产业经济发展战略 总被引:5,自引:0,他引:5
发展杂交水稻产业经济是进一步扩大杂交水稻种植面积、增加杂交水稻生产效益、确保杂交水稻高产高效的有效途径.概述了杂交水稻产业经济的基本内涵和中国发展杂交水稻产业经济的重要意义,深入分析了中国发展杂交水稻产业经济的优势和制约因素,在此基础上提出了中国杂交水稻产业经济发展的具体战略和政策性建议. 相似文献
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This article reviews the history and progress of hybrid rice development. Hybrid rice research was initiated back in 1964, and commercialized in 1976. Three-line and two-line system hybrid rice were developed in 1974 and 1995, respectively. Research on super hybrid rice, which was first launched by Ministry of Agriculture, China in 1996, is discussed, and the great progress of super hybrid rice had been achieved with a new yield record by 15.4 t ha–1 in the 6.84 ha demonstration location in Xupu, Hunan Province, China in 2014. And the mechanism of heterosis, the techniques of hybrid seed production and the modern field managements in hybrid rice over the past decades are also discussed. Additionally, this article dealt with the intellectual property protection(IPR) and development of hybrid rice seed industry in China. Major factors that constrain hybrid rice development are analyzed and possible solutions to this problems are proposed. Finally, the authors present methods to further increase production yield, and propose an improvement for breeding super high-yielding hybrid rice based on these methods. 相似文献
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两系法杂交水稻制种不安全问题的解决途径(英文) 总被引:1,自引:0,他引:1
制种安全问题已严重制约两系法杂交水稻健康持续发展。水稻两用核不育系不育起点温度偏高、两系杂交稻制种基地和时段选择不当以及不育起点温度漂变是导致两系杂交稻制种不安全的主要原因。本研究表明,选育不育起点温度低和耐受低温时间长的水稻两用核不育系能降低制种风险;根据历史气象资料和两系杂交稻制种"三个安全期"对气象条件的要求,利用计算机技术,研制了两系杂交稻制种基地和时段气象决策支持系统,解决了以往生产上盲目选择两系杂交稻制种基地和时段的问题;研创了株系育性鉴定方法和一季加再生冷水串灌繁种技术,采用该方法生产原种能降低原种生产世代数,防止水稻两用核不育系不育起点温度漂变。通过以上研究可从种性、种源和制种地三方面提高两系法杂交水稻制种安全性。 相似文献
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为了对海南两系杂交稻制种关键发育期进行精细化气候风险区划,对海南两系杂交稻制种产业区域布局提供指导,利用2006—2020年海南岛南部8个市县144个区域气象站的资料,在数据质量控制的基础上,根据两系杂交稻制种的气候风险等级指标,制定海南岛两系杂交稻制种关键发育期气候风险区划。结果表明,不育临界温度22℃时,两系杂交稻制种综合气候低风险区分布于昌江、东方、乐东、三亚、保亭、陵水和万宁;不育临界温度23℃时,两系杂交稻制种综合气候低风险区分布于东方、乐东、三亚、保亭和陵水大部分地区;不育临界温度23.5℃时,两系杂交稻制种综合气候低风险区分布于乐东、三亚和陵水大部分地区;不育临界温度24℃时,两系杂交稻制种综合气候低风险区分布于乐东、三亚和陵水沿海地区。所构建的气候风险区划可为海南两系杂交稻制种种植规划提供有效借鉴,对南繁扩种具有一定的指导意义。 相似文献
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通过对杂交水稻种子生产的历史回顾,现状及存在问题的分析,以及在杂交水稻种子生产上推行流程化管理的成效分析,阐述了杂交稻种生产推进流程化管理的必要性和重要意义。 相似文献