Optical sensors for monitoring water uptake in plants

Hadjiloucas, S. ORCID: https://orcid.org/0000-0003-2380-6114, Karatzas, L.S., Keating, D.A. and Usher, M.J. (1995) Optical sensors for monitoring water uptake in plants. Journal of Lightwave Technology, 13 (7). pp. 1421-1428. ISSN 0733-8724 doi: 10.1109/50.400707

Abstract/Summary

The monitoring of water uptake in plants is becoming increasingly important. Optical sensors offer considerable advantages over conventional methods and several sensors have been developed including an optical potometer that monitors water uptake from individual roots, the detection of xylem cavitation using audio acoustic emissions with an interferometric force feedback microphone, and an optical fiber displacement transducer that detects changes in leaf thickness in relation to leaf-water potential.