 An architectural model of spring wheat: Evaluation of the effects of population density and shading on model parameterization and performanceJochem B. Evers, Jan Vos, Christian Fournier, Bruno Andrieu, Michaël Chelle and Paul C. Struik Ecological Modelling, 2007, vol. 200, issue 3, 308-320 Abstract: ADELwheat is an architectural model that describes development of wheat in 3D. This paper analyzes the robustness of the parameterization of ADELwheat for spring wheat cultivars in relation to plant population density and shading. The model was evaluated using data from two spring wheat experiments with three plant population densities and two light regimes. Model validation was done at two levels of aggregation: (a) by comparing parameterization functions used as well as parameter values to the data (leaf and tiller appearance, leaf number, blade dimensions, sheath length, internode length) and (b) by comparing ground cover (GC) and leaf area index (LAI) of simulated virtual wheat plots with GC and LAI calculated from data. A sensitivity analysis was performed by modulating parameters defining leaf blade dimensions and leaf or tiller appearance rate. Keywords: Functional–structural model; Wheat; Leaf shape; Tillering; Ground cover; L-system (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:200:y:2007:i:3:p:308-320 DOI: 10.1016/j.ecolmodel.2006.07.042 Access Statistics for this article Ecological Modelling is currently edited by Brian D. Fath More articles in Ecological Modelling from Elsevier |
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