Modelling fruit-temperature dynamics within apple tree crowns using virtual plants
- 7 April 2011
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of Botany
- Vol. 108 (6), 1111-1120
- https://doi.org/10.1093/aob/mcr054
Abstract
Fruit temperature results from a complex system involving the climate, the tree architecture, the fruit location within the tree crown and the fruit thermal properties. Despite much theoretical and experimental evidence for large differences (up to 10 °C in sunny conditions) between fruit temperature and air temperature, fruit temperature is never used in horticultural studies. A way of modelling fruit-temperature dynamics from climate data is addressed in this work. The model is based upon three-dimensional virtual representation of apple trees and links three-dimensional virtual trees with a physical-based fruit-temperature dynamical model. The overall model was assessed by comparing model outputs to field measures of fruit-temperature dynamics. The model was able to simulate both the temperature dynamics at fruit scale, i.e. fruit-temperature gradients and departure from air temperature, and at the tree scale, i.e. the within-tree-crown variability in fruit temperature (average root mean square error value over fruits was 1·43 °C). This study shows that linking virtual plants with the modelling of the physical plant environment offers a relevant framework to address the modelling of fruit-temperature dynamics within a tree canopy. The proposed model offers opportunities for modelling effects of the within-crown architecture on fruit thermal responses in horticultural studies.Keywords
This publication has 38 references indexed in Scilit:
- Experimental study of fruit temperature dynamics within apple tree crownsAgricultural and Forest Meteorology, 2009
- A 3D model for simulating the spatial and temporal distribution of temperature within ellipsoidal fruitAgricultural and Forest Meteorology, 2007
- Modelling the daily course of capitulum temperature in a sunflower canopyAgricultural and Forest Meteorology, 2006
- Light interception in apple trees influenced by canopy architecture manipulationTrees, 2004
- Maize ear temperatureEuropean Journal of Agronomy, 2001
- Analyse de l'étalement temporel de la floraison et influence sur la variabilité intra-arbre de la chute et de la croissance précoce des pêchesCanadian Journal of Plant Science, 2000
- Measurement and visualization of the architecture of an adult tree based on a three-dimensional digitising deviceTrees, 1997
- Seasonal CO2 exchange patterns of developing peach (Prunus persica) fruits in response to temperature, light and CO2 concentrationPhysiologia Plantarum, 1993
- Estimating the temperature of a maize apex during early growth stagesAgricultural and Forest Meteorology, 1993
- Solar heating of grape berries and other spherical fruitsAgricultural Meteorology, 1976