...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oryza >Varietal improvement of rice for hilly areas in India
【24h】

Varietal improvement of rice for hilly areas in India

机译：印度丘陵地区水稻品种的改良

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rice production in India doubled during the last three decades shifting India from an importing to an exporting status. The incorporation of semi-dwarf gene from DGWG and designing short erect plant type with greater efficiency to utilize solar energy and added nitrogen contributed to higher yields in most areas including hilly areas superceding earlier efforts made through indica/japonica hybridization. Subsequent efforts involved identifying production constraints in different rice ecologies including high altitude and hill areas for improving stability of dwarf plant types. Identification of donor germplasm and testing of improved varieties developed at more than 15 centres in the hilly areas under different agro-climatic zones (AICRIP), 42 improved varieties for high altitudes with higher productivity, better tolerance to biotic and abiotic-stresses could be identified through contemporary and modern plant breeding techniques which in turn resulted in higher production. Future strategies include aggressive efforts to strengthen this testing programme with more locations, breeding varieties with tolerance to low temperature and blast, utilizing recombination and heterosis breeding methods, duly supported by molecular techniques. Area, production and productivity of rice in hilly areas are given in Table 1.
机译：在过去的三十年中，印度的稻米产量翻了一番，使印度从进口国转变为出口国。引入来自DGWG的半矮基因并设计出效率更高的短直立植物类型，以利用太阳能和增加的氮肥，使大多数地区（包括丘陵地区）的产量提高，取代了早先通过efforts /粳稻杂交而做出的努力。随后的工作涉及查明包括高海拔和丘陵地区在内的不同水稻生态的生产限制条件，以提高矮化植物类型的稳定性。鉴定供体种质并测试在不同农业气候区（AICRIP）下丘陵地区超过15个中心开发的改良品种，可以鉴定出42种高海拔改良品种，具有更高的生产力，对生物和非生物胁迫的更好耐受性通过现代和现代植物育种技术提高了产量。未来的策略包括加大努力以在更多地方加强该测试计划，利用分子技术适当支持的重组和杂种优势育种方法来培育对低温和爆炸具有耐受性的品种。表1列出了丘陵地区水稻的面积，产量和生产力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号