• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Agronomy >Assessment of breeding progress in sugar beet by testing old and new varieties under greenhouse and field conditions.
【24h】

Assessment of breeding progress in sugar beet by testing old and new varieties under greenhouse and field conditions.

机译：通过在温室和田间条件下测试新旧品种来评估甜菜的育种进展。

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

Breeding has led to a continuous increase of the performance of sugar beet varieties and thereby contributes to meet the global needs for food and biomass. This study aimed to analyze the extent of the breeding progress in sugar beet and to determine which parameters and traits were modified by breeding. In 2007 and 2008 sugar beet varieties registered between 1964 and 2003 were cultivated in field trials and in greenhouse experiments to exclude effects from changes in agronomic operations and climatic conditions. Differences in white sugar yield related to the reference variety registered in 1964 were regarded as breeding progress. The results showed an increase in the white sugar yield of 0.6-0.9% a-1 from 1964 to 2003 due to breeding. This was achieved by an improved biomass partitioning (higher root to leaf ratio and higher sugar to marc ratio), better technical quality (decreased concentration of K, Na, and amino N combined as standard molasses loss) and enhanced assimilation (higher chlorophyll content, higher assimilation rates). No changes were observed in leaf development and cambium ring formation. A principle component analysis pointed out that breeding targets have shifted with time from "yield" to "biomass quality". To continue the breeding progress in future it is essential to integrate multiple resistances and tolerances against biotic and abiotic stress.
机译：育种导致甜菜品种的性能不断提高，从而有助于满足全球对食物和生物质的需求。这项研究旨在分析甜菜育种进展的程度，并确定通过育种修改哪些参数和性状。在1964年至2003年之间注册的2007年和2008年的甜菜品种在田间试验和温室实验中进行了种植，以排除农艺操作和气候条件变化的影响。与1964年注册的参考品种相关的白糖产量差异被视为育种进展。结果表明，从1964年到2003年，由于育种，白糖产量增加了0.6-0.9％a -1 。这是通过改善生物量分配（更高的根叶比和更高的糖/马克比），更好的技术质量（降低作为标准糖蜜损失的钾，钠和氨基N的浓度）和增强的同化作用（更高的叶绿素含量，更高的同化率）。没有观察到叶片发育和形成形成层的变化。主成分分析指出，育种目标已随时间从“产量”转移到“生物量质量”。为了将来继续育种进展，必须整合对生物和非生物胁迫的多重抗性和耐受性。

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