Coupling the functional-structural plant models MAppleT and QualiTree to simulate carbon allocation and growth variability of apple trees
| Autor: | Mingyu Han, Benoît Pallas, Olivier Guillaume, Gilles Vercambre, Weiwei Yang, Michel Génard, D. Da Silva, Evelyne Costes, Pierre-Eric Lauri, Pierre Valsesia |
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| Přispěvatelé: | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH), Institut National de la Recherche Agronomique (INRA), Northwest A&F University, Architecture et Fonctionnement des Espèces Fruitières [AGAP] (AFEF), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Projet APMed (ANR), ANR-12-AGRI-0001,APMed,Le verger de pommier et de pêcher en zone méditerranéenne - Etat hydrique de l'arbre et stratégies d'irrigation pour remédier au manque d'eau et comme moyen de contôle des infestations par le puceron(2012) |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Plant growth chemistry.chemical_element Horticulture 010603 evolutionary biology 01 natural sciences modèle structure fonction Architecture [SDV.BV]Life Sciences [q-bio]/Vegetal Biology allocation du carbone Growth variability Management practices Mathematics malus domestica 2. Zero hunger Vegetal Biology architecture de l'arbre Carbon allocation Functional structural plant model Apple Simulation modeling Plant models 15. Life on land simulation Tree (graph theory) chemistry Agronomy Coupling (computer programming) Interception Biological system Carbon Biologie végétale 010606 plant biology & botany |
| Zdroj: | Proceedings of the X International Symposium on Modelling in Fruit Research and Orchard Management. (1160)2017; 10. International Symposium on Modelling in Fruit Research and Orchard Management, Montpellier, FRA, 2015-06-02-2015-06-05, 61-67 Acta Horticulturae |
| ISSN: | 2406-6168 0567-7572 |
| DOI: | 10.17660/actahortic.2017.1160.9 |
| Popis: | International audience; Plant growth highly depends on the carbon allocation which results from combined effects of environment, horticultural practices and management. QualiTree had demonstrated to be a useful model to simulate carbon allocation within the tree structure for peach trees submitted to contrasted cultivation practices (crop load) and soil water availability. The objective of this study was to adapt QualiTree to apple trees to simulate carbon economy and growth dynamics as well as variability within tree. Peach tree architecture is managed by standardized pruning practices whereas apple tree pruning is more tailored this leading to a greater variability of architecture. To take this variability into account, we used MAppleT to generate random tree architectures corresponding to the ‘Fuji’ cultivar. The architecture generated by MAppleT was saved into a Multiscale Tree Graph (MTG) and included information on all shoots and fruits location as well as their initial weights. This information was then used as input for QualiTree. Furthermore, based on the observed growth capacity of apple tree annual shoots, we modified QualiTree to take into account three different classes of shoots (long, medium and short) that are characterized by different growth rate and duration. The light interception sub-model, based on a turbid medium hypothesis, was also modified to allow the usage of user-defined ellipsoids to better represent the shape of apple trees. To calibrate the model, different parameter combinations of initial relative organ/shoot growth rate, maximum shoot biomass and duration of growth were tested to simulate adequately the variability of fruit and leafy shoot growth. The simulations were compared to previous 3-dimensional digitized measurements performed on ‘Fuji’ apple trees. Finally, the new version of QualiTree was used to simulate the impact of water stress, tree architecture and fruit load effect on organ growth dynamics and variability within tree structure. This modeling approach coupling MAppleT and QualiTree would help deeper understanding on complex interaction between growth, architecture and cultivation practices. To reach this objective, further works are needed to integrate into MAppleT retroaction loops between carbon allocation and plant architecture establishment. |
| Databáze: | OpenAIRE |
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