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Biologia Plantarum

, Volume 19, Issue 6, pp 413–420 | Cite as

Improved thermal method of continual recording the transpiration flow rate dynamics

  • J. Ktjčera
  • J. Čermák
  • M. Penka
Article

Abstract

The analysis of the dynamic properties of thermal methods of transpiration flow measurement was performed and the measuring system developed, capable of quantitative measurements of fast flow changes (in minutes). The system is specified with a constant automatically maintained temperature difference between the heated and reference points in the measured part of the plant. System’s output signal related to measured quantity is linear. The system has been under longterm testing in full grown trees using the method of heat balance with direct electric heating of the xylem. The results obtained so far may be considered very good.

Keywords

Heat Balance Fast Change Transpiration Flow Heat Inertia Continual Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Institute of Experimental Botany 1977

Authors and Affiliations

  • J. Ktjčera
    • 1
  • J. Čermák
    • 1
  • M. Penka
    • 1
  1. 1.Institute of Forest Ecology affiliated to the Department of Forest Botany and Phytocoenology, Faculty of ForestryBrno University of AgricultureBrno-SoběšieeCzechoslovakia

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