Modelling "calçots" (Allium cepa L.) growth by Gompertz function

"Calçots" are the second-year resprouts of the "Ceba Blanca Tardana de Lleida" landrace of onions. The evolution of three "calçots" populations has been modeled to help farmers to plan the optimal time to harvest. Four different models that essentially differ in the typ...

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Detalles Bibliográficos
Autores: Simó, Joan, Casañas, Francesc, Sabaté, Jose
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:113248
Acceso en línea:https://ddd.uab.cat/record/113248
Access Level:acceso abierto
Palabra clave:"Calçots"
Onion
Crop modeling
Gompertz
Simulation
Descripción
Sumario:"Calçots" are the second-year resprouts of the "Ceba Blanca Tardana de Lleida" landrace of onions. The evolution of three "calçots" populations has been modeled to help farmers to plan the optimal time to harvest. Four different models that essentially differ in the type of distribution of the fitting Gompertz function parameters (lag time, maximum growth rate and the maximum attainable number of commercial size "calçots") have been tested. The model that considers a multinomial distribution of the fitting parameters showed the best agreement with the experimental data.