Prediction of Olive Tree Water Requirements under Limited Soil Water Availability, Based on Sap Flow Estimations

The forecast of irrigation requirements in commercial olive orchards the era climate change is at forefront scientific research. Simplified models that are based on monitoring soil and plant water status, along with microclimatic variables well established. In present study, an attempt was made to correlate tree sap fluxes theoretical grass losses, as expressed by reference evapotranspiration (ETo) mild moderate water-stress conditions. flow soil–plant–air continuum monitored using thermal dissipation probes (TDP), which have a comparatively low cost satisfactory reliability, while variability meteorological station placed within experimental orchard. assessment stress conducted via coefficient (Ks), determined according availability, validated measurements pre-dawn potential stomatal conductance. results suggest existence exponential correlation (R2 = 0.869) between daily transpirational losses evapotranspiration, methodology’s applicability verified validation process 0.804 RMSE 0.579 L per day).