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Comprehensive analysis in drought resistance of four landscape trees
Author(s): 
Pages: 95-102
Year: Issue:  1
Journal: Journal of Beijing Forestry University

Keyword:  水分胁迫 抗旱性 园林树木 抗旱性评价指标;
Abstract: 以1年生元宝枫、木槿、紫荆和紫藤为材料,通过盆栽控水试验,研究不同土壤含水量对幼苗株高、叶片数、生物量分配、光合与叶绿素荧光特性等的影响,以及4个树种的抗旱性。结果表明,除茎生物量比外,比叶重、叶片蜡质含量、叶片气孔密度、光合和叶绿素荧光参数等可作为木本植物抗旱性的评价指标。运用隶属函数法对抗旱能力进行综合评定,元宝枫、木槿、紫荆和紫藤的综合评价值分别为0.617、0.455、0.493和0.292,抗旱性依次为元宝枫>紫荆>木槿>紫藤。
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