• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Genetic Resources and Crop Evolution >Farmers’ adoption of maize (Zea mays L.) hybrids and the persistence of landraces in Southwest China: implications for policy and breeding
【24h】

Farmers’ adoption of maize (Zea mays L.) hybrids and the persistence of landraces in Southwest China: implications for policy and breeding

机译：农民采用玉米（Zea mays L.）杂交种和西南地区地方品种的持续存在：对政策和育种的影响

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

This paper examines changes in the distribution of maize hybrids and landraces in the mountainous areas of southwest China over 1998–2008, farmers’ reasons for cultivar adoption and the implications for national policies in relation to seed production and breeding, based on baseline data and a survey conducted in Guangxi, Yunnan and Guizhou. The study traced the dynamic changes in the adoption of hybrids and landraces in farmers’ fields, explored how individual farmer’s choices can influence local landrace distribution, and investigated the space for conducive policy and innovative action for on-farm conservation of maize genetic resources. The research showed that although there is strong farmers’ interest in accessing modern maize hybrids, farmers also express strong reasons for maintaining at least some of the landraces that satisfy local agronomic context and social preferences. Farmers recognized that hybrids have a number of advantages but they also indicated some disadvantages of the current available hybrids e.g. with respect to seed quality, local adaptability, taste and cost of seeds, but also lack of information on the performances of the new hybrids. Based on farmers’ reasoning and experiences, the requirements have been identified for improving yield combined with local preferences (agronomic, cultural and socio-economic). The paper concludes by identifying options for how China might seek to develop resilient seed systems for smallholder farmers in poor areas, under changing climatical conditions and volatile markets. Participatory Plant Breeding is among the options considered for bringing farmers’ needs into conservation and breeding strategies for improving local adaptation.
机译：本文根据基线数据和相关数据，研究了1998-2008年中国西南山区玉米杂交种和地方种的分布变化，农民采用品种的原因以及对与种子生产和育种有关的国家政策的影响。在广西，云南和贵州进行的调查。这项研究追踪了农民田间采用杂交种和地方品种的动态变化，探讨了个体农民的选择如何影响当地地方品种的分布，并研究了在农场保护玉米遗传资源的有利政策和创新行动的空间。研究表明，尽管农民对获取现代玉米杂交品种有浓厚的兴趣，但农民也表达了维持至少一些满足当地农艺背景和社会偏好的地方品种的强烈理由。农民认识到杂种有许多优点，但他们也指出了当前可用杂种的一些缺点，例如杂种。关于种子质量，本地适​​应性，种子的味道和成本，但也缺乏有关新杂交种性能的信息。根据农民的推理和经验，确定了提高产量并结合当地偏好（农艺，文化和社会经济）的要求。最后，本文确定了在气候条件变化和市场动荡的情况下，中国如何寻求为贫困地区小农户建立有韧性的种子系统的选择方案。参与式植物育种是考虑将农民的需求纳入保护和育种策略以改善当地适应性的选择之一。

著录项

  • 来源
    《Genetic Resources and Crop Evolution》 |2012年第6期|p.1147-1160|共14页
  • 作者

    Jingsong Li; Edith T. Lammerts van Bueren; Janice Jiggins; Cees Leeuwis;

  • 作者单位

    Center for Chinese Agricultural Policy, Chinese Academy of Sciences, Beijing, China;

    Wageningen UR Plant Breeding, Wageningen University, P.O. Box 386, 6700 AJ, Wageningen, The Netherlands;

    Communication and Innovation Studies Group, Wageningen University, The Netherlands, Hollandseweg 1, 6706 KN, Wageningen (Bode 79), P.O. Box 8130, 6700 EW, Wageningen, The Netherlands;

    Communication and Innovation Studies Group, Wageningen University, The Netherlands, Hollandseweg 1, 6706 KN, Wageningen (Bode 79), P.O. Box 8130, 6700 EW, Wageningen, The Netherlands;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Maize hybrids; Maize landraces; Plant breeding; Southwest China; Zea mays;

    机译：玉米杂交种;玉米地方品种;植物育种;中国西南;玉米;

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