Trees

, Volume 25, Issue 5, pp 785–799

QualiTree, a virtual fruit tree to study the management of fruit quality. II. Parameterisation for peach, analysis of growth-related processes and agronomic scenarios

  • José M. Mirás-Avalos
  • Gregorio Egea
  • Emilio Nicolás
  • Michel Génard
  • Gilles Vercambre
  • Nicolas Moitrier
  • Pierre Valsesia
  • María M. González-Real
  • Claude Bussi
  • Françoise Lescourret
Original Paper

DOI: 10.1007/s00468-011-0555-9

Cite this article as:
Mirás-Avalos, J.M., Egea, G., Nicolás, E. et al. Trees (2011) 25: 785. doi:10.1007/s00468-011-0555-9

Abstract

In this paper, QualiTree, a fruit tree model designed to study the management of fruit quality, and developed and described in a companion paper (Lescourret et al. in Trees Struct Funct, 2010), was combined with a simple light-interception sub-model, and then parameterised and tested on peach in different situations. Simulation outputs displayed fairly good agreement with the observed data concerning mean fruit and vegetative growth. The variability over time of fruit and vegetative growth was well predicted. QualiTree was able to reproduce the observed response of trees to heterogeneous thinning treatments in terms of fruit growth. A sensitivity analysis showed that the average seasonal growth rates of the different organs were sensitive to changes to the values of their respective initial relative growth rates and that stem wood was the tree organ the most affected by a change in the initial relative growth rates of other organs. QualiTree was able to react to simulated scenarios that combined thinning and pest attacks. As expected, thinning intensity and the percentage damage caused by pests significantly affected fruit yield and quality traits at harvest. These simulations showed that QualiTree could be a useful tool to design innovative horticultural practices.

Keywords

Carbon allocationGrowthFruitSensitivity analysis

Supplementary material

468_2011_555_MOESM1_ESM.doc (204 kb)
Supplementary material (DOC 204 kb)

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • José M. Mirás-Avalos
    • 1
    • 2
  • Gregorio Egea
    • 3
    • 4
  • Emilio Nicolás
    • 5
    • 6
  • Michel Génard
    • 1
  • Gilles Vercambre
    • 1
  • Nicolas Moitrier
    • 1
  • Pierre Valsesia
    • 1
  • María M. González-Real
    • 3
  • Claude Bussi
    • 7
  • Françoise Lescourret
    • 1
  1. 1.INRA, UR1115 Plantes et Systèmes de culture Horticoles (PSH)Avignon Cedex 9France
  2. 2.Facultad de CienciasUniversidade da CoruñaA CoruñaSpain
  3. 3.Universidad Politécnica de Cartagena, Plaza del Cronista Isidoro ValverdeCartagenaSpain
  4. 4.Department of Soil Science, School of Human and Environmental SciencesThe University of ReadingReadingUK
  5. 5.Departamento de Riego, Centro de Edafología y Biología Aplicada del SeguraCSICEspinardoSpain
  6. 6.Unidad Asociada al CSIC de Horticultura Sostenible en Zonas Áridas (UPCT-CEBAS)CartagenaSpain
  7. 7.INRA, UE695 Recherches Intégrées (UERI)Saint-Marcel-les-ValenceFrance