Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 406182
Title Towards a 3D structural tomato model for calculating light interception
Author(s) Sarlikioti, V.; Marcelis, L.F.M.; Visser, P.H.B. de
Source In: Proceedings of the International Symposium on High Technology for Greenhouse Systems: GreenSys2009, Quebec, Canada, 14 - 19 June, 2009. - - p. 721 - 728.
Event International Symposium on High Technology for Greenhouse Systems: GreenSys2009, Quebec, Canada,, 2009-06-14/2009-06-19
Department(s) Horticultural Supply Chains
WUR GTB Gewasfysiologie Management en Model
Publication type Contribution in proceedings
Publication year 2011
Abstract A number of physiological tomato models have been proposed the last decades, their main challenge being the correct simulation of fruit yield. For this, an accurate simulation of light interception, and thus photosynthesis, is of primary importance. Light interception is highly dependent of the canopy structure which is affected amongst others by distance between plant rows, distance of plants within the row, leaf pruning and crop variety. In order to simulate these processes, a functional structural tomato model for the simulation of light interception on an individual leaf basis is proposed. The 3D model was constructed using L-systems formalism. For the architectural part of the model, manual measurements of leaf length, width, angle of the leaf main stem to plant stem and leaf orientation were conducted. The diurnal pattern of leaf orientation was also tested. The architectural model was coupled with a nested radiosity model for light calculation. Area per individual leaflet served as input of the light module for calculation of reflection, absorption and transmission of light. The model was used to test different crop planting scenarios on their effect on light interception. Results were then compared with light simulation for a totally homogeneous canopy.
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