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dc.contributor.authorOlego, M. A.
dc.contributor.authorÁlvarez, J. C.
dc.contributor.authorTobes, A.
dc.contributor.authorDe-Paz, José M. 
dc.contributor.authorCoque, J. J. R.
dc.contributor.authorGarzón-Gimeno, Enrique
dc.identifier.citationOlego, M. A., Alvarez, J. C., Tobes, A., de Paz, J. M., Coque, J. J. R., & Garzón‐Jimeno, E. (2016). Determining optimum harvest time under M editerranean conditions: developing a new model for measuring L‐malic acid concentration in red grapes. Australian journal of grape and wine research, 22(2),
dc.description.abstractBackground and Aims: Malic acid concentration varies as berries develop, reaching its highest value just before veraison. Objective criteria for choosing the optimal harvest time require chemical or physicochemical measurements; the determination of malic acid concentration is one of these. The main aim of this work was to develop a predictive model to determine the malic acid concentration in grapes at harvest time as an alternative to commonly used methods, such as HPLC and enzymatic analysis. Methods and Results: The red grape cultivar Vitis vinifera L. Tempranillo was used in this study. Of the 11 predictive parameters measured, titratable acidity (TA) had the greatest relative importance as a predictor variable for estimation of the concentration of malic acid in must at harvest time. Conclusions: The daily average rainfall from harvest time to the next season sampling time, pH and TA and TA raised to the second power have been shown to be significant contributors in predicting malic acid concentration in grapes at harvest time. Significance of the Study: This work describes a multiple regression model that explains malic acid concentration in red grapes at harvest
dc.publisherWiley Online Libraryes
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectAkaike Information Criteriaes
dc.subjectMultiple regression modeles
dc.subjectTitratable acidityes
dc.titleDetermining optimum harvest time under Mediterranean conditions: developing a new model for measuring L-malic acid concentration in red grapeses
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro para el Desarrollo de la Agricultura Sosteniblees
dc.journal.titleAustralian Journal of Grape andWine Researches
dc.subject.agrisF01 Crop husbandryes
dc.subject.agrisF60 Plant physiology and biochemistryes
dc.subject.agrovocMalic acid es

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España