doi:10.3969/j.issn.1004-3268.2010.06.027

Abstract

摘要： 为了研究外来植物火炬树的光合、蒸腾生理特征及其与环境因子的关系,应用LI-6400便携式光合测定仪,于2008年8-11月对外来植物火炬树的光合速率（Pn）、蒸腾速率（Tr）、气孔导度（Gs）、水分利用效率（WUE）的日变化特征,及其与环境因子的关系进行了研究。结果表明,火炬树的光合速率日变化在8月为双峰曲线,有明显的光合午休现象,在9-11月,光合日变化曲线则为单峰曲线,光合速率随季节的推移而逐渐降低;不同月份,影响火炬树Pn、Gs和Tr日变化的主要因子也有所不同;8-11月,火炬树的WUE呈逐渐增高的趋势,说明随着季节的变化,火炬树的Tr比Pn下降的幅度更大,以适应环境因子的变化。

关键词: 火炬树, 光合作用, 日变化, 环境因子

CLC Number:

郭二辉;胡聃;田朝阳. 外来种火炬树光合作用日变化与环境因子的关系[J]. 河南农业科学, 2010, 39(6): 109-159.

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外来种火炬树光合作用日变化与环境因子的关系

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