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| Prusinkiewicz, P.; Allen, M.; Escobar-Gutiérrez, A.; DeJong, T.M.. |
| A key problem of functional-structural plant modelling is the partitioning of resources between plant components. One approach to addressing this problem is based on the simulation of transport between the sources and sinks of a resource. To this end, we exploit an analogy between the flow of resources in a plant and the flow of currents in an electric circuit, and we present a computationally effective method for solving this circuit. The method lends itself to a straightforward implementation using L-systems, and is thus well suited for simulating the partitioning of resources in spatially-explicit models of growing plants. |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1377 |
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| Allen, M.T.; Prusinkiewicz, P.; Favreau, R.R.; DeJong, T.M.. |
| Carbohydrate partitioning is closely coupled with plant growth and architecture, and therefore constitutes an important aspect of the functional-structural modelling of plants. L-PEACH is an L-systembased tree simulation model that combines supply/demand concepts of carbon partitioning with a developmental model of tree architecture. The model is expressed in terms of modules that represent plant organs. An organ may correspond to one or more elementary sources or sinks for carbohydrates. The whole plant is modelled as a branching network of these sources and sinks, connected by conductive elements. An analogy to an electric network is used to calculate the flow and partitioning of carbohydrates between the individual components. It can simulate multiple... |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1378 |
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| Prusinkiewicz, P.. |
| L+C is a modelling language that combines features of L-systems and C++. It extends the Lsystem formalism with the notion of fast transfer of information, and supports a number of standard programming constructs absent from its predecessor, the cpfg language. These include modules with structured parameters, productions with multiple successors, and user-definable functions. Visualizations of L-system models can be enhanced using multiple views and the selective display of frames. These features extend the overall range of simulation models that can be conveniently expressed using Lsystems, and are particularly advantageous when creating and visualizing complex plant models. A biomechanical model of a growing pendulous branch is given as the key example. |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1369 |
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