ISHS Acta Horticulturae 278: Symposium on Scheduling of Irrigation for Vegetable Crops under Field Condition
CAVITATION EVENTS IN SOLANUM MELONGENA L. MEASURED AFTER WATER STRESS CYCLES IN FIELD CONDITIONS |
| Authors: | A. Raschi, F. Torri, P. Zienna, L. Galli, C. Vazzana |
| Abstract:
The results of an experiment about cavitation occurrence in Solanum melongena L. plants are reported. The measurements were carried out using the ultrasound technique developed by Tyree and Dixon, during water stress cycles in mediterranean summer climate. Xylematic water potential and transpiration have also been measured the results show a good agreement between ultrasound emission from stems and water stress conditions, although ultrasound emission has been recorded also in non stressed plants, in conditions of low evaporative demand. We discuss the relationship existing between cavitation and ultrasound emission, coming to the conclusion that, although ultrasound counting cannot be considered a direct measurement of cavitative events, yet it is a good indication of water stress conditions involving cavitation phenomena. | |
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