Repositorio
Institucional

Franck, Nicolas

Jorquera-Fontena, Emilio#Genard, Michel

Analysis of blueberry (Vaccinium corymbosum L.) fruit water dynamics during growth using an ecophysiological model

TAYLOR & FRANCIS LTD

JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY

en

Blueberry (Vaccinium corymbosum L.) fruits exhibit three growth stages associated with distinct biological processes. During these periods, water and carbon accumulate in the fruit, determining quality traits such as fruit size and sugar concentration. We adapted the Fishman-Genard model to blueberry and used it to analyse the effect of fruit load on fruit fresh mass and water dynamics, based on empirical observations of dry mass and sugar content performed throughout the fruit growth period. Different fruit load treatments were imposed during two seasons on Brigitta' blueberry plants growing under different culture systems. Increasing fruit load significantly reduced the fresh mass of the fruits at harvest, but did not affect sugar concentration, which was simulated and validated with a mean error of 7% for fresh mass and 15% for sugar concentration for the tested conditions. The most sensitive model parameters were those related to cell wall extensibility and sugar uptake. The simulations indicated that larger fresh mass of the fruit was mainly caused by increases in water fluxes rather than pressure differences. The model implementation provides the first estimates of a set of parameters which govern blueberry fruit water dynamics from fruit set to harvest.

Artículo original

This work was supported by the Comision Nacional de Investigacion Cientifica y Tecnologica [PhD Scholarship], FONDECYT [1130509].

Este trabajo fue apoyado por la Comisión Nacional de Investigación Científica y Tecnológica [Beca de Doctorado], FONDECYT [1130509].

10.1080/14620316.2017.1304810

pdf

Fruit load# sumulation# water relations

http://dx.doi.org/10.1080/14620316.2017.1304810

Horticulture

Carga de fruta# sumación# relaciones hídricas

Horticultura

Botánica

Biología Celular

version publicada

dorada

verde

acceso abierto

acceso abierto

WOS:000418768500013

Analysis of blueberry (<i>Vaccinium corymbosum</i> L.) fruit water dynamics during growth using an ecophysiological model

Artículo original

TAYLOR & FRANCIS LTD

JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY

Horticultura

1462-0316

en

ANID FONDECYT 1130509

This work was supported by the Comision Nacional de Investigacion Cientifica y Tecnologica [PhD Scholarship], FONDECYT [1130509].

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