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Volume 30
Issue 16
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Irrigation Regime Effects on Phenolic Composition of Portuguese Grape Varieties

by
Daniela Fonseca
1,
Rosario Sánchez-Gómez
2,
M. Rosario Salinas
2,
Maria João Cabrita
3,4,
Nuno Martins
3,
Raquel Garcia
3,4 and
Cristina Cebrián-Tarancón
2,*
1
Mediterranean Institute for Agriculture, Environment and Development & Institute of Research and Advanced Training, University of Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
2
Cátedra de Química Agrícola, E.T.S. Ingeniería Agronómica y de Montes y Biotecnología, Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla-La Mancha, Avda. de España s/n, 02071 Albacete, Spain
3
Mediterranean Institute for Agriculture, Environment and Development & Global Change and Sustainability Institute, University of Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
4
Department of Crop Science, School of Science and Technology, University of Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal.
*
Author to whom correspondence should be addressed.
Molecules 2025, 30(16), 3408; https://doi.org/10.3390/molecules30163408
Submission received: 24 July 2025 / Accepted: 13 August 2025 / Published: 18 August 2025
(This article belongs to the Special Issue Analytical Chemistry in Europe: Towards Sustainability and Quality of Life, 3rd Edition)
Versions Notes

Abstract

Climate change has led to increased extreme weather events, such as severe droughts and intense rainfall, with regions in Portugal, like Alentejo and Algarve, being particularly affected. Understanding the influence of water availability in the concentration of phenolic compounds in autochthonous varieties could be an important tool to know how these varieties adapt to water scarcity. This work has been carried out with the aim to analyze the profile of phenolic compounds by HPLC-DAD in four Portuguese grape varieties (Tinta Gorda, Tinta Miúda, Tinta Caiada, and Moreto), cultivated under three irrigation regimes (water comfort, moderate water deficit, and rainfed). The results reveal that Tinta Gorda, Tinta Miúda, and Tinta Caiada varieties exhibit the higher concentrations of phenolic compounds under rainfed conditions. Among these, Tinta Miúda and Tinta Caiada stand out as the most promising varieties in terms of adaptability to water scarcity.
Keywords: autochthones varieties; grape quality; HPLC-DAD; water supply; phenolic compounds; sustainable viticulture autochthones varieties; grape quality; HPLC-DAD; water supply; phenolic compounds; sustainable viticulture

Share and Cite

MDPI and ACS Style

Fonseca, D.; Sánchez-Gómez, R.; Salinas, M.R.; Cabrita, M.J.; Martins, N.; Garcia, R.; Cebrián-Tarancón, C. Irrigation Regime Effects on Phenolic Composition of Portuguese Grape Varieties. Molecules 2025, 30, 3408. https://doi.org/10.3390/molecules30163408

AMA Style

Fonseca D, Sánchez-Gómez R, Salinas MR, Cabrita MJ, Martins N, Garcia R, Cebrián-Tarancón C. Irrigation Regime Effects on Phenolic Composition of Portuguese Grape Varieties. Molecules. 2025; 30(16):3408. https://doi.org/10.3390/molecules30163408

Chicago/Turabian Style

Fonseca, Daniela, Rosario Sánchez-Gómez, M. Rosario Salinas, Maria João Cabrita, Nuno Martins, Raquel Garcia, and Cristina Cebrián-Tarancón. 2025. "Irrigation Regime Effects on Phenolic Composition of Portuguese Grape Varieties" Molecules 30, no. 16: 3408. https://doi.org/10.3390/molecules30163408

APA Style

Fonseca, D., Sánchez-Gómez, R., Salinas, M. R., Cabrita, M. J., Martins, N., Garcia, R., & Cebrián-Tarancón, C. (2025). Irrigation Regime Effects on Phenolic Composition of Portuguese Grape Varieties. Molecules, 30(16), 3408. https://doi.org/10.3390/molecules30163408

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