The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems

Background and Aims. The Mediterranean climate has been traditionally favorable for winemaking and irrigation practice has been historically avoided and even forbidden, but current productive scenarios are suffering radical changes because of global warming. Therefore, seeking sustainable approaches...

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Main Authors: Camila Ribalta-Pizarro, Paula Muñoz, Sergi Munné-Bosch
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Australian Journal of Grape and Wine Research
Online Access:http://dx.doi.org/10.1155/2024/5001343
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author Camila Ribalta-Pizarro
Paula Muñoz
Sergi Munné-Bosch
author_facet Camila Ribalta-Pizarro
Paula Muñoz
Sergi Munné-Bosch
author_sort Camila Ribalta-Pizarro
collection DOAJ
description Background and Aims. The Mediterranean climate has been traditionally favorable for winemaking and irrigation practice has been historically avoided and even forbidden, but current productive scenarios are suffering radical changes because of global warming. Therefore, seeking sustainable approaches to improve water availability is key to obtaining high-quality wines and maintain its style, without affecting yields. Methods and Results. Here, we aim to evaluate the effect of irrigation in Merlot vineyards, on grapes production and quality, and also on wine acceptability. Field-grown grapevines from cv. “Merlot” were subjected to two different water supplies in the field: (i) nonirrigated plants and (ii) irrigated plants with 50% of crop evapotranspiration, from veraison to commercial harvest. We assessed water stress markers such as leaf relative water content, leaf hydration, and the maximum efficiency of photosystem II photochemistry, as well as grape and wine quality parameters, wine acceptability, and preference with a panel composed of 100 participants. Furthermore, we performed a systematic review study for comparison, including 9 published reports on Merlot grapevines subjected to different water regimes, oriented to improve irrigation decisions, yield, and/or quality. Results showed that half water supply on grapevines not only induced an increase in the volume and weight of grapes, but the resulting wines had a lower total acidity and showed more desirable chromatic properties, increasing colour intensity and hue, and decreasing brightness. Sensory analysis revealed that 63% of the untrained panel preferred wines from the irrigation treatment. Integrating previously reported data, it is observed that water scarcity is favorable for quality only when compared with fully irrigated vineyards. Conclusions. It is concluded that a half irrigation can be enough to improve grape quality under Mediterranean conditions, without affecting yield components and enhancing sensory characteristics that can improve wine acceptance by consumers. Water management approaches to sustainably provide this extra amount of water to irrigate field-grown grapevines under the current context of climate change are discussed. Significance of the Study. The present study’s findings provide valuable information regarding water management in Mediterranean vineyards and its effects on the suitability of these areas to maintain high-quality wine production.
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spelling doaj-art-5fab310438b5485ebfd19b90315789df2025-02-03T10:49:05ZengWileyAustralian Journal of Grape and Wine Research1755-02382024-01-01202410.1155/2024/5001343The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type EcosystemsCamila Ribalta-Pizarro0Paula Muñoz1Sergi Munné-Bosch2Department of Evolutionary Biology, Ecology, and Environmental SciencesDepartment of Evolutionary Biology, Ecology, and Environmental SciencesDepartment of Evolutionary Biology, Ecology, and Environmental SciencesBackground and Aims. The Mediterranean climate has been traditionally favorable for winemaking and irrigation practice has been historically avoided and even forbidden, but current productive scenarios are suffering radical changes because of global warming. Therefore, seeking sustainable approaches to improve water availability is key to obtaining high-quality wines and maintain its style, without affecting yields. Methods and Results. Here, we aim to evaluate the effect of irrigation in Merlot vineyards, on grapes production and quality, and also on wine acceptability. Field-grown grapevines from cv. “Merlot” were subjected to two different water supplies in the field: (i) nonirrigated plants and (ii) irrigated plants with 50% of crop evapotranspiration, from veraison to commercial harvest. We assessed water stress markers such as leaf relative water content, leaf hydration, and the maximum efficiency of photosystem II photochemistry, as well as grape and wine quality parameters, wine acceptability, and preference with a panel composed of 100 participants. Furthermore, we performed a systematic review study for comparison, including 9 published reports on Merlot grapevines subjected to different water regimes, oriented to improve irrigation decisions, yield, and/or quality. Results showed that half water supply on grapevines not only induced an increase in the volume and weight of grapes, but the resulting wines had a lower total acidity and showed more desirable chromatic properties, increasing colour intensity and hue, and decreasing brightness. Sensory analysis revealed that 63% of the untrained panel preferred wines from the irrigation treatment. Integrating previously reported data, it is observed that water scarcity is favorable for quality only when compared with fully irrigated vineyards. Conclusions. It is concluded that a half irrigation can be enough to improve grape quality under Mediterranean conditions, without affecting yield components and enhancing sensory characteristics that can improve wine acceptance by consumers. Water management approaches to sustainably provide this extra amount of water to irrigate field-grown grapevines under the current context of climate change are discussed. Significance of the Study. The present study’s findings provide valuable information regarding water management in Mediterranean vineyards and its effects on the suitability of these areas to maintain high-quality wine production.http://dx.doi.org/10.1155/2024/5001343
spellingShingle Camila Ribalta-Pizarro
Paula Muñoz
Sergi Munné-Bosch
The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
Australian Journal of Grape and Wine Research
title The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
title_full The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
title_fullStr The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
title_full_unstemmed The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
title_short The Wine Quality of Merlot Relies in Irrigation Supplementation and Spotlights Sustainable Production Constraints in Mediterranean-Type Ecosystems
title_sort wine quality of merlot relies in irrigation supplementation and spotlights sustainable production constraints in mediterranean type ecosystems
url http://dx.doi.org/10.1155/2024/5001343
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