Acople de un modelo de conductancia estomática, fotosíntesis y transpiración para el cultivo de maracuyá (Passiflora edulis Sims)

At present, crop behavior due to climate change is not well known, in particular those responses related to water and energy balances. The aim of this work was to propose and implement a model aimed to evaluate interactions among photosynthesis, stomatal conductance and transpiration phenomenon under both crop growing process and tropic climate conditions. A passion fruit crop located in Colombia (Huila Department) is taken as a study case. The actual transpiration estimated by the model was evaluated using a gravimetric type lysimeter. The results indicated that the proposed model was able to estimate the passion fruit crop transpiration under conditions in the tropic climate with a good validation of 0.30. The mean daily transpiration rate under wet weather conditions during the study period was 1.36 mm d^-1. Sensitivity analysis indicated that the parameter m is identified and is highly sensitive for the case study, however, VM25, KC25, JM25, Ko25, f, B parameters showed poor sensitivity and identification.