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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Detalhes bibliográficos
Autores: Simó, Joan, Casañas, Francesc, Sabaté, Jose
Tipo de documento: artigo
Data de publicação:2013
País:España
Recursos:Universitat Autònoma de Barcelona
Repositório:Dipòsit Digital de Documents de la UAB
Idioma:inglês
OAI Identifier:oai:ddd.uab.cat:113248
Acesso em linha:https://ddd.uab.cat/record/113248
Access Level:Acceso aberto
Palavra-chave:"Calçots"
Onion
Crop modeling
Gompertz
Simulation
Descrição
Resumo:"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.