Microelectrode technique for in situ measurement of carbon dioxide concentrations in xylem sap of trees.

@article{McGuire2002MicroelectrodeTF,
  title={Microelectrode technique for in situ measurement of carbon dioxide concentrations in xylem sap of trees.},
  author={Mary Anne McGuire and Robert O. Teskey},
  journal={Tree physiology},
  year={2002},
  volume={22 11},
  pages={807-11}
}
We developed a new microelectrode technique for measuring CO2 concentration ([CO2]) in xylem sap of trees. This technique enabled us to make rapid and continuous measurements of xylem sap [CO2] in situ. In this report, we discuss the methodology and establish the feasibility of the technique. We also describe calibration procedures, temperature sensitivity, field use and other characteristics of the microelectrodes. An example of data collected in the field is provided. Microelectrode… CONTINUE READING

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