ISHS Acta Horticulturae 416: IV International Symposium on Computer Modelling in Fruit Research and Orchard Management
MODELLING THE CARBON USE FOR SUGAR ACCUMULATION AND SYNTHESIS IN PEACH FRUIT |
| Authors: | M. Génard, M. Souty, M. Reich, R. Laurent |
| Keywords: | fruit quality, fruit growth, carbon, Prunus persica L. Batsch |
| Abstract:
The quality of juicy fruits like peach depends a lot on sugar content. This fact motivated the development of a dynamic, deterministic model of carbon use for sugar accumulation and synthesis in peach fruit flesh. The model used differential equations where the state of the system under investigation at time t was defined by state variables, which were quantities of carbon present in peach flesh under various forms: several sugars, other carbohydrates (acids and structural carbohydrates). The rates of change of those carbon quantities per unit time depended explicitly on the current values of corresponding state variables, and on the laws of transfer between them. They depended also on the carbon supply into the fruit and on losses through respiration. The model was designed to be driven by the growth of flesh dry matter and by temperature. The predictions of the model were in good agreement with experimental data. | |
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