Modelling transpiration of greenhouse gerbera (Gerbera jamesonii H. Bolus) grown in substrate with saline water in a Mediterranean climate.

Highlights: [•] Greenhouse soilless gerbera was grown in autumn and spring with fresh or moderately saline water. [•] The Penman–Monteith model and two regression equations, which responded to vapour pressure deficit and/or radiation, were used to predict the hourly transpiration rate. [•] Water salinity affected crop growth and production only in spring, but it influenced neither stomatal resistance nor model calibration. [•] The models explained 80–96% of the variability of measured transpiration. [ABSTRACT FROM AUTHOR]