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| HAL : hal-00546791, version 1 |
| arXiv : 1012.3276 |
| Fiche détaillée |  Récupérer au format |
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| Plant growth Modeling, Simulation, Visualization and Applications - PMA 09, Beijing : Chine (2009) |
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| Modeling branching effects on source-sink relationships of the cotton plant |
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| Dong Li 1Véronique Letort 2, 3 |
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| (2010) |
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| Compared with classical process-based models, the functional-structural plant models provide more efficient tools to explore the impact of changes in plant structures on plant functioning. In this paper we investigated the effects of branches on the sourcesink interaction for the cotton plant (Gossypium hirsutum L.) based on a two-treatment experiment conducted on cotton grown in the field: the singlestem plants and the plants with only two vegetative branches. It was observed that the branched cotton had more organs for the whole plant but the organs on the trunk were smaller than those on the single-stem cotton. The phytomer production of the branches was four or five growth cycles delayed compared with the main stem. The organs on the trunk had similar dynamics of expansion for both treatments. Effects of branches were evaluated by using the functionalstructural model GREENLAB. It allowed estimating the coefficients of sink strength to differentiate the biomass acquisition abilities of organs between different physiological ages. We found that the presence of the two vegetative branches increased the ground projection area of plant leaves and had led to slight changes on the directly measured parameters; the potential relative sink strengths of organs were found similar for the two treatments. |
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| 1 : | Key Laboratory of Plant-Soil Interactions (PSI) |
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China Agricultural University |
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| 2 : | Mathématiques Appliquées aux Systèmes - EA 4037 (MAS) |
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Ecole Centrale Paris |
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| 3 : | DIGIPLANTE (INRIA Saclay - Ile de France) |
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INRIA – Centre de coopération internationale en recherche agronomique pour le développement [CIRAD] : UMR – Ecole Centrale Paris |
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| 4 : | Eco-informatics (LIAMA) |
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Centre de coopération internationale en recherche agronomique pour le développement [CIRAD] – CNRS – Institut national de la recherche agronomique (INRA) – INRIA – Chinese Academy of Science (CAS) – Institute of Automation, Chinese Academy of Sciences |
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| 5 : | BotAnique et BioinforMatique de l'Architecture des Plantes (AMAP) |
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Centre de coopération internationale en recherche agronomique pour le développement [CIRAD] : UMR51 – CNRS : UMR5120 – Institut de recherche pour le développement [IRD] – Institut national de la recherche agronomique (INRA) : UR0931 – Université Montpellier II - Sciences et techniques |
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| Domaine | : | Sciences du Vivant/Biologie végétale Mathématiques/Systèmes dynamiques |
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| Cotton – functional-structural model – parametric estimation – pruning – architecture – physiology |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00546791, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00546791 | |
| oai:hal.archives-ouvertes.fr:hal-00546791 | |
| Contributeur : Veronique Letort | |
| Soumis le : Mardi 14 Décembre 2010, 17:42:15 | |
| Dernière modification le : Mercredi 15 Décembre 2010, 11:58:40 | |
