Progress of Research of Using Continuously Recorded Trunk Diameter Fluctuations for Irrigation Scheduling in Lemon Trees
In this paper, we revise the use of trunk diameter fluctuations and derived parameters for irrigation scheduling in lemon trees. The strengths and weaknesses of these continuously measured plantbased water stress indicators compared with other discretely measured plant-based water stress indicators for diagnosing young and mature plant water status were analyzed. For this, other important aspects for evaluating plant water status and for assessing the usefulness of plant-based water stress indicators, and the physiological significance of maximum and minimum daily trunk diameter and maximum daily trunk shrinkage were also considered. Current knowledge of irrigation protocols and baselines for obtaining maximum daily trunk shrinkage reference values is discussed and new research objectives are proposed. Also, we analyze the lemon tree responses to continuous deficit irrigation scheduled by maintaining maximum daily trunk shrinkage signal intensity at threshold values to generate mild, moderate and severe water stress, and assess the possibility of using linear variable displacement transducer (LVDT) sensors in fruits and trunk as a precision tool for regulated deficit irrigation scheduling.
Lemon Trunk diameter Irrigation scheduling
M.F. Ortuno F. Moreno W. Conejero J.J. Brito A. Torrecillas
Dpto. Riego. Centro de Edafologtay Biologta Aplicada del Segura (CSIC). P. 0. Box 164, ?-30100 Espin Dpto. SostenibUidad del Sistema Suelo-Planta-Atmdsfera. Institute de Recursos Naturales y Agrobiolog Centro de Investigaciones Agrtcolas del Estado Lara (INIA-CIAE Lara). Apartado Postal 592. Barquisim Dpto. Riego. Centro de Edafologtay Biologta Aplicada del Segura (CSIC). P. 0. Box 164, ?-30100 Espin
国际会议
11th International Citrus Congress(第11届国际柑橘大会)
武汉
英文
906-911
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）