Comparison of gas exchange systems

There are a couple of gas exchange systems available for field measurements of CO2-exchange and transpiration. These so called portable mostly battery driven porometers sample only one leaf or part of one leaf. They are mainly used for spot measurements of a great number of leaves of one species or to compare gas exchange features of a greater number of species growing at the same site. We had the chance to compare two of those portable systems with a stationary minicuvette system using bigger samples and measuring continuously. The advantages and disadvantages of each system have to be known before a system is used in a project dealing with the interactions between plants and environment.

Drittmittelgeber:

Deutsche Forschungsgemeinschaft, Schimper-Stipendium, FRD (South Africa)

Beteiligte Wissenschaftler:

Prof. Dr. D.J. von Willert, Dr. G.F. Midgley, M. Steinberg, L.W. Powrie, G.W. Davis, M. Veste

Veröffentlichungen:

Midgley, G.F., M. Veste, D.J. von Willert, G.W. Davis, M. Steinberg, L.W. Powrie: Comparative field performance of three different gas exchange systems. Bothalia 1997