...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The New Phytologist >Earlywood vessels of Castanea sativa record temperature before their formation
【24h】

Earlywood vessels of Castanea sativa record temperature before their formation

机译：板栗的早木容器在形成之前记录温度

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

The aim of this study was to identify the climatic signal contained in the earlywood vessel size of the ring-porous chestnut (Castanea sativa) and the physiological processes involved in the underlying mechanisms. In order to assign the encoded signal to a specific physiological process, bud phenology and vessel formation were monitored along an elevation transect and chronologies of the size of the first row of earlywood vessels were retrospectively correlated with 40 yr of early spring temperatures. The first vessels appeared in late April to early May, after encoding both a negative temperature signal in February-March (during tree quiescence) and a positive temperature signal in early April (at the time of resumption of shoot growth). We hypothesize that February and March temperatures affect cambial sensitivity to auxin, preconditioning tree responses later in the season. Furthermore, April temperature is related to tree activation whereby new hormone production fosters vessel expansion.
机译：这项研究的目的是确定环形多孔板栗（Castanea sativa）的早木容器大小中包含的气候信号以及涉及其潜在机制的生理过程。为了将编码的信号分配给特定的生理过程，沿海拔样线监视芽物候和血管形成，并将第一排早木容器的大小按时间顺序与40年的早春温度进行回顾性关联。第一批容器出现在4月下旬至5月上旬，在2月至3月（树木静止期间）编码为负温度信号，并在4月初（恢复枝条生长）编码为正温度信号。我们假设2月和3月的温度会影响冈比亚人对植物生长素的敏感性，从而在本季节晚些时候预处理树木的反应。此外，四月的温度与树木的活化有关，由此产生的新激素促进了血管的扩张。

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