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Title: Monitoring of Plant Light/Dark Cycles Using Air-coupled Ultrasonic Spectroscopy
Authors: Fariñas, María Dolores
Sancho Knapik, Domingo
Peguero Pina, José Javier
Gil Pelegrín, Eustaquio
Alvarez Arenas, T.E.G.
Issue Date: 2015
Citation: Physics Procedia, 63, p. 91-96
Abstract: This work presents the application of a technique based on the excitation, sensing and spectral analysis of leaves thickness resonances using air-coupled and wide-band ultrasound to monitor variations in leaves properties due to the plant response along light/dark cycles. The main features of these resonances are determined by the tautness of the cells walls in such a way that small modifications produced by variations in the transpiration rate, stomata aperture or water potential have a direct effect on the thickness resonances that can be measured in a completely non-invasive and contactless way. Results show that it is possible to monitor leaves changes due to variations in light intensity along the diurnal cycle, moreover, the technique reveals differences in the leaf response for different species and also within the same species but for specimens grown under different conditions that present different cell structures at the tissue level.
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Appears in Collections:[DOCIART] Artículos científicos, técnicos y divulgativos

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