terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Effect of two water deficit regimes on the agronomic response of 12 grapevine varieties cultivated in a semi-arid climate

Effect of two water deficit regimes on the agronomic response of 12 grapevine varieties cultivated in a semi-arid climate

Abstract

The Mediterranean basin is one of the most vulnerable regions to Climate Change effects. According to unanimous forecasts, the vineyards of Castilla-La Mancha will be among the most adversely affected by rising temperatures and water scarcity during the vine’s vegetative period. One potential strategy to mitigate the negative impacts of these changes involves the identification of grapevine varieties with superior water use efficiency, while ensuring satisfactory yields and grape quality. In this work, the agronomic performance and water use efficiency of 12 grapevine varieties, including international ones, were studied under two water regimes over three consecutive growing seasons (2017, 2018 and 2019): an irrigated treatment at 25% of ETo (watered), and a rain-fed water regime (drought). Results showed significant effects of irrigation and vine variety on carbon isotope ratio (δ13C), yield components and total acidity. Airén and Malvar exhibited the highest water use efficiency in both treatments, although they showed diminished grape quality and reduced yields under drought. In contrast, certain varieties like Moscatel de Grano Menudo and Petit Verdot produced high-quality musts but demonstrated lower resilience to drought, resulting in decreased yields and δ13C values. Macabeo, Chardonnay, Bobal and Garnacha Tintorera responded well to drought, maintaining high yields and must quality. This study allowed the identification of grapevine varieties with varying levels of drought tolerance, providing valuable information for selecting the most suitable candidates for future cultivation in semi-arid regions. 

Acknowledgements: This work was supported by PID2019-105362RB-100, SBPLY/21/180501/000144 and UCLM intramural grants and EU FEDER funds.

DOI:

Publication date: October 25, 2023

Issue: ICGWS 2023

Type: Poster

Authors

A. Mena-Morales1*, J. Martínez-Gascueña1, J.L. Chacón-Vozmediano1, A.S. Serrano1,2, A. Martín-Forero 3, M. Mena3

1Regional Institute of Agri-Food and Forestry Research and Development of Castilla-La Mancha (IRIAF), IVICAM, Ctra. Toledo-Albacete s/n, 13700 Tomelloso (Ciudad Real), Spain.
2Department of Agricultural Chemistry, School of Agricultural and Forestry Engineering and Biotechnology, University of Castilla-La Mancha, Avda. De España s/n, 02071 Albacete, Spain.
3Faculty of Environmental and Biochemistry Sciences, University of Castilla-La Mancha, Avda. Carlos III, s/n, Technological Campus of the Arms Factory, 45071 Toledo, Spain.

Contact the author*

Keywords

varieties, water use efficiency, carbon isotope ratio, yield, must quality

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Application of antagonistic Metschnikowia strains against Botrytis cinerea in vineyards 

Less and less chemical plant protection products are approved by the E U. Plant pathogenic fungi become increasingly resistant to the active ingredients that have been around for a long time. Besides, there is a valid demand for effective products that can be applied in organic cultivation.
We examined Metschnikowia strains under laboratory conditions in order to find effective strains against B. cinerea. The antimicrobial mechanism of these yeasts is based on the competition for the ferric ions from the environment. Metschnikowia cells release the pulcherriminic acid which chelates with Fe3+, forming the pigment pulcherrimin.

Read More

Combined use of leaf removal and natural shading to delay grape ripening in Manto negro (Vitis vinifera L.) under deficit irrigation 

The increasingly frequent heat waves during grape ripening pose challenges for premium wine grape production. This makes the development of irrigation and canopy management techniques of great importance to maximize yield and grape quality. A field experiment was carried out during 2021 and 2022 using Manto negro wine grapes to study the effect of two irrigation strategies and different light exposure levels on grape quality.

Read More

Study of Spanish wine sensory analysis data over a 3-year period

This study presents an investigation based on sensory analysis data of Spanish wines with geographical indications collected over a three-year period. Sensory analysis plays a crucial role in assessing the quality, characteristics, and perception of wines. The trained tasting panel at Dolmar Laboratory, accredited for objective sensory evaluation of wines since 2016, has been tasting over 5000 wines. However, it is since 2021, when a computer application for tastings was developed, that the digitalization of data allows for detailed statistical analysis of the results.

Read More

Ecophysiological characterisation of terroir effects on Vitis vinifera L. Chardonnay and pinot noir in south african cool climate regions

Terroir encompasses environmental (climate, geology, soil and topography), genetic (cultivar and clone) and human factors (oenological and viticultural practices). Climate change brings about shifts in the suitability of a region for the growth of specific grapevine cultivars. This study focused on climatic and fruit parameters (berry size, weight, pH, total acidity (TA) and phenolics) to characterise the terroir effect in Vitis vinifera L. cultivars Chardonnay and Pinot Noir vineyards in the Cape South Coast region (Walker Bay and Elgin).

Read More

Phenolic composition profile of cv. Tempranillo wines obtained from severe shoot pruning vines under semiarid conditions

One of the limitations of vineyards in warm areas is the loss of wine quality due to higher temperatures during the grape ripening period. In order to adapt the vineyards to these new climatic conditions, a possible solution is to delay the ripening process of the grapes towards periods with milder temperatures, by means of management practices and thus improve the quality of the fruit and the wine produced. The technique of severe shoot pruning (SSP) has proven useful in achieving this objective.

Read More