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Preliminary Study on Determining Stem Diameter Variations of Sympodial Orchid

Authors: N.M Khairi, M.I. Naimah, M.S.B. Shah Rizam, M.T. Nooritawati, Z.A. Husna


Changes in stem diameter of orchid plants were investigated in a control growing climate. Previous studies have focused on stem diameter in relation to plant water on terrestrial plants in order to schedule the irrigation. The objective of this work was to evaluate the ability of the strain gauges to capture changes in the epiphytes plant stem. Experiments were carried out by using the sympodial orchid, Dendrobium Sonia in a stressed condition. From the findings, the sensor can detect changes in the plant stem and the result can easily be used as a reference for further studies for the development of a proper watering system.

Keywords: Strain gauge, stem diameter, Dendrobium Sonia, epiphyte, terrestrial

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[1] Jordi Doltra, José Antonio Oncins, Joan Bonany and Moshe Cohen, "Evaluation of plant-based water status indicators in mature apple trees under field conditions," Irrigation Science, vol.5, no.4, pp.351-359, 2006.
[2] F. Moreno, W. Conejero, M.J. Martin-Palomo, I.F. Giron, A.Torrecillas, " Maximum daily trunk shrinkage refernces values for irrigation scheduling in olive trees", Agricultural Water Management 84, pp. 290- 294, 2006.
[3] D.S. Intrigliolo, J.R. Castel, " Crop load effects maximum daily trunk shrinkage of plum trees", Tree Physiology 27, pp. 89-96, 2007.
[4] W. Conejero, J.J. Alarcon, Y. Garcia-Orellana, J.M. Abrisqueta, A.Torrecillas, " Evaluation sap flow and trunk diameter sensors for irrigation scheduling in early maturing peach trees", Tree Physiology 27, pp. 1753-1759, 2007.
[5] J.E. Fernandez, M.V. Cuevas, "Irrigation scheduling from stem diameters variations : A review", Agricultural and Forest Meteorology 150, pp. 135-151, 2010.
[6] R.B. Thompson, M. Gallardo, L.C. Valdez, M.D. Fernandez, " Using plant water status to define threshold values for iriigation management of vegetable crops using soil moisture sensors-, Agriculturel Water Management 88, pp. 147-158, 2007.
[7] Tom De Swaef, Kathy Steppe, Raoul Lemeur, " Determining reference value for stem water potential and maximum daily trunk shrinkage in young apple tree based on plant response to water deficit", Agricultural Water Management 96, pp. 541-550, 2009.
[8] Klepper B, Browning VD, Taylor HM, "Stem diameter in relation to plant water status," Plant Physiol vol.48, pp. 683-685, 1999.
[9] S.O. Link, M.E. Thiede and M.G. van Bavel, "An improved strain-gauge device for continuous field measurement of stem and fruit diameter" Journal of Experimental Botany, vol. 49, no. 326, pp. 1583-1587, September 1998.
[10] E. Fereres, D.A. Goldhamer, "Suitability of stem diameter variationsand water potential as indicators for iirigation scheduling of almond trees", Journal of Horticultural and Biotechnology78 (2), pp. 139-144, 2003.