Modeling sugar content of pineapple under agro-climatic conditions on Reunion Island

•The gustatory quality of pineapple is affected by climate and management practices.•A sugar model simulated accurately total soluble solids in pineapple flesh at harvest.•Agronomic and ecophysiological approaches were combined to simulate pineapple quality. A process-based model simulating the chan...

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Bibliographic Details
Published in:European journal of agronomy 2016-02, Vol.73, p.64-72
Main Authors: Dorey, Elodie, Fournier, Patrick, Léchaudel, Mathieu, Tixier, Philippe
Format: Article
Language:English
Subjects:
Ananas comosus (L.) Merr
carbon
climatic factors
crop models
ecophysiology
flowering
fruit quality
fruiting
growth and development
heat sums
irrigation
marketing
metabolism
nitrogen fertilizers
pineapples
Quality
rain
SIMPIÑA model
SIMPIÑA model
simulation models
Sugar content
sugars
taste
temperature
total soluble solids
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Summary:•The gustatory quality of pineapple is affected by climate and management practices.•A sugar model simulated accurately total soluble solids in pineapple flesh at harvest.•Agronomic and ecophysiological approaches were combined to simulate pineapple quality. A process-based model simulating the change in total soluble solids (TSS (%)) in fruit flesh was developed to describe the effect of climatic conditions on the sugar content of ‘Queen Victoria’ pineapple at harvest on Reunion Island. Sugar content varies throughout fruit development according to three processes (the supply of carbohydrates to the fruit, fruit metabolism, and dilution) which are affected by environmental factors, mainly temperature, rainfall and fertilization. The ecophysiological model of soluble sugar accumulation was linked to SIMPIÑA, a crop model that accurately predicts the daily increases in flesh dry and fresh weight. When the process-based model and crop model were linked, the dry and fresh matter of the pineapple flesh, as affected by climatic conditions, could be used as inputs to predict the TSS (%) at harvest. The relative rate of transformation of carbon as sugars in the fruit flesh for the synthesis of compounds other than sugars was estimated during fruit growth. TSS (%) were compared for harvested fruit grown under eight agro-climatic conditions. In the flesh of fruit harvested close to maturity, i.e., at 1400 degree-days after flowering, TSS (%) were significantly related (r2=0.55, P
ISSN:1161-0301
1873-7331
DOI:10.1016/j.eja.2015.10.010