A coupled model of stomatal conductance, photosynthesis and transpiration for passionfruit (Passiflora edulis) cultivars

Acta Agronómica

Romero Cuéllar, Jonathan²  Obregón Neira, Nelson³  Torres, Andrés³  Torrente Trujillo, Armando¹ 

[1] Universidad Surcolombiana, Neiva, Colombia;Centro de Investigación en Ciencias y Recursos GeoAgroAmbientales - CENIGAA, Neiva, Colombia;Pontificia Universidad Javeriana, Bogotá D.C, Colombia

关键词: Mathematical modeling;    MCAT;    Passion fruit;    Sensitivity analysis;    temperature weather;   

DOI  :  

学科分类：农业科学（综合）

来源: Universidad Nacional de Colombia * Facultad de Ciencias Agropecuarias Palmira

【 摘 要 】

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.

【 授权许可】

Unknown