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水分是影响杨树林生产力、生态经济效益的重要环境因子,抗旱造林和选育抗旱品种成为干旱、半干旱地区的主要研究方向,了解杨树的耐旱性能,可以为干旱、半干旱地区人工造林和抗旱品种选择提供理论依据。基于此,从组织结构、生理生化指标和基因工程等角度,对杨树抗旱品种的选择进行综述。
Water is an important environmental factor that affects the productivity and ecological and economic benefits of poplar. Drought resistant afforestation and breeding of drought-resistant cultivars have become the major research directions in arid and semi-arid regions. Understanding the drought tolerance of poplar can be beneficial to afforestation in arid and semi-arid regions and Drought resistant varieties to provide a theoretical basis for selection. Based on this, the selection of poplar drought-resistant cultivars is reviewed from the aspects of tissue structure, physiological and biochemical indexes and genetic engineering.