• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Physiological and morphological indicators of yield in selected forage grasses - a few case studies and a confession
【24h】

Physiological and morphological indicators of yield in selected forage grasses - a few case studies and a confession

机译：选择性牧草产量的生理和形态指标 - 少数案例研究和认罪

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Crop scientists have long sought to identify traits associated with superior plant-growth performance and dependable productivity. This search has been founded upon the belief that once identified, these physiological or morphological traits could then be used as indicators in the selection of higher yielding genotypes through plant breeding. Such an incorporation of indicator traits into a crop-improvement program would presumably help focus more conventional breeding activities where the emphasis has often been placed on eliminating yield reductions due to insects or disease, or on selecting for increased yield without fully understanding why productivity increased. For indicators to be used effectively in a crop-improvement program, however, there must be a strong dialogue between crop physiologists and breeders, and the unique needs of each discipline must be recognized. Only then will it be possible to gain a better understanding for how process-level traits affect yield and how these traits can be used to improve crop yields. As a prelude to introducing the use of indicators in crop-improvement programs, we first briefly review the concept of a model plant (i.e., the crop ideotype) and discuss how such a framework has influenced the use of indicators in breeding warm- and cool-season grasses for increased yields. Several case studies are then presented to illustrate how forage yields have been affected through incorporating physiological and morphological indicators of yield into the selection process. The interaction between the crop physiologist and the breeder is emphasized, and the authors speculate how each of these two disciplines might view the outcome of specific research efforts.

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