In the context of chronobiological research on trees, a high-sensitivity device was developed to measure low-potential electric currents along the bole of two trees growing under open conditions. Rhythmic variations of the(bio-)electric potentials are found, linked on the one hand to daily photoperiods and on the other to lunar periodicities,depending on the physiological phase of the trees.
Tree stems and tides – A new approach and elements of reflexion (reviewed paper)
Kurt Holzknecht, Ernst Zürcher; Tree stems and tides – A new approach and elements of reflexion (reviewed paper). Schweizerische Zeitschrift fur Forstwesen 1 June 2006; 157 (6): 185–190. doi: https://doi.org/10.3188/szf.2006.0185
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