Physiological and morphological responses of poplar clones to different soil moisture levels

杨树无性系对不同土壤水分水平的生理和形态响应

• 批准号: 367032-2008
• 负责人: Zwiazek, Janusz
• 金额: $ 1.81万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=483453
• 关键词: Physiological; morphological; responses; poplar; clones

Intensive farming of fast-growing hybrid poplars can be improved by selecting drought-resistant clones for the areas exposed to periodic drought conditions. This task requires the use of predictive tests. During the first part of this research project, we conducted controlled-environment studies to determine which drought resistance characteristics of poplar could be suitable as part of the drought resistance screening protocols for poplars. The proposed second part of the project extends these findings to the field conditions. In the proposed research, we will use a field drip irrigation system to provide hybrid Populus clones with different levels of soil moisture. We will use the clones that have been tested in the controlled-environment study to confirm and validate the results of controlled-environment studies and to determine whether the identified resistance characteristics are present under more complex natural field conditions. The main objective of this research is to identify the morphological and physiological attributes of drought resistant hybrid Populus clones that would make these clones suitable for plantations in water limited environments such as those present in north-central Alberta and across the Prairies.

在周期性干旱地区，通过选择抗旱无性系，可以提高速生杂交杨的集约化种植。这项任务需要使用预测测试。在本研究项目的第一部分，我们进行了受控环境的研究，以确定哪些抗旱性的白杨可以作为杨树抗旱性筛选协议的一部分。拟议的项目第二部分将这些调查结果扩大到实地条件。在本研究中，我们将使用田间滴灌系统来提供不同土壤水分水平的杂交杨树无性系。我们将使用已在受控环境研究中测试的克隆来确认和验证受控环境研究的结果，并确定在更复杂的自然田间条件下是否存在已鉴定的抗性特征。本研究的主要目的是确定抗旱杂交杨树无性系的形态和生理属性，使这些无性系适合种植在水资源有限的环境中，如目前在中北部的阿尔伯塔和整个大草原。