一些敏感植物对HF暴露的反应

应用生态学报 ›› 1990, Vol. 1 ›› Issue (1): 90-93.

一些敏感植物对HF暴露的反应

陈树元, 高绪平, 徐和宝, 谢明云

江苏省植物研究所, 南京 210014

收稿日期:1989-07-03 出版日期:1990-01-25 发布日期:1990-01-25

Reactions to HF exposure by some sensitive plants

Chen Shuyuan, Gao Xuping, Xu Hebao, Xie Mingyun

Jiangsu Institute of Botany, Nanjing 210014

Received:1989-07-03 Online:1990-01-25 Published:1990-01-25

摘要/Abstract

摘要： 本文旨在以金荞麦、火炭母和水杉为材料, 利用开顶式熏气装置, 研究敏感植物对HF暴露的生理反应。在熏气过程中, 对供试植物叶片进行了气孔阻抗、蒸腾强度、电导率和叶绿素含量的测定。实验发现, 火炭母的气孔阻抗高于金荞麦, 而且即便是同一种火炭母, 但红叶火炭母的气孔阻抗又高于绿叶火炭母。另外, 不同植物对HF敏感性上的差异同样反应在电导率比值的变化趋势和数值上。敏感植物的电导率比值均较高。作者认为, 确当的选择和测定有关的生理指标是大气污染生物监测的一项重要内容。

关键词: HF暴露, 敏感植物, 生理变化

Abstract: In this paper, physiological reactions to HF exposure by Polygonum chinensis L., Fagopyrum cymosum Meisn and Metasequoia glyptostroboides were studied with top opened field chamber. During the process of HF exposure, stomatal resistance (S.R.), transpiration intensity (T.I), electric conductivity (E.C.) and amount of chlorophyll were measured. It was found that the S.R. of polygonum chinensis L. was higher than that of Fagopyrum cymosum Meisn. What is more, the S.R. of polygonum chinensis in green leaf was higher than that in red leaf. In addition, the difference in sensitivity to HF among different plants was also appeared in tendency and value of E.C. change. Sensitive plants showed much higher E.C. It is considered that to select and determine the appropriate physiological index is one of the important work in biological monitoring of atmospheric pollution.

Key words: HF exposure, Sensitive plant, Physiological change

陈树元, 高绪平, 徐和宝, 谢明云. 一些敏感植物对HF暴露的反应[J]. 应用生态学报, 1990, 1(1): 90-93.

Chen Shuyuan, Gao Xuping, Xu Hebao, Xie Mingyun . Reactions to HF exposure by some sensitive plants[J]. Chinese Journal of Applied Ecology, 1990, 1(1): 90-93.

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