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…

Ability of lactic acid bacterial laccases to degrade biogenic amines and OTA in wine

Two of the most harmful microbial metabolites for human health that can be present in wines and either fermented or raw foods are biogenic amines (BA) and ochratoxine A (OTA). Winemakers are aware of the need to avoid their presence in wine by using different strategies, one of them is the use of enzymes. Some recombinant laccases have been characterized and revealed as potential tools to degrade these toxic compounds in wine[1], specifically biogenic amines[2].

Read More

Toasting and grain effect on Tempranillo red wine aged in Quercus petraea barrels

The barrel-making process is widely recognized as a crucial practice that affects the composition of barrel-aged wine. After the drying process, the staves are considered ready for barrel assembly, which includes the processes of bending and toasting the barrel structure. Toasting is considered one of the most critical stages in determining the physical and chemical composition of the staves, which can influence the chemical and sensory composition of the wine aged in barrels made from them [1].

Read More

Differences in metabolism among species and hybrids of the genus Saccharomyces during wine fermentation unveiled by multi-omic analysis 

Yeast species S. cerevisiae, S. uvarum, S. kudriavzevii and their hybrids present clear metabolic differences, even when we compared S. cerevisiae wine versus wild strain. These species and hybrids produced significantly higher amounts of glycerol, organic acids, 2,3-butanediol, and 2-phenyl ethanol and a reduction of the ethanol yield, properties very interesting in the sector to deal with climate change effects. To understand the existing differences, we have used several omics techniques to analyze the dynamics of the (intra- and extracellular) metabolomes and/or transcriptomes of representative strains of S. cerevisiae, S. uvarum, S. kudriavzevii, and hybrids.

Read More

Impact of polyclonal selection for abiotic stress tolerance on the yield and must quality traits of grapevine varieties

The effects of climate change in viticulture are currently a major concern, with heat waves and drought affecting yield, wine quality, and in extreme cases, even plant survival. Ancient grapevine varieties have high intravarietal genetic variability that so far has been explored successfully to improve yield and must quality. Currently, there is little information available on intravarietal variability regarding responses to stress. In the current work, the intravarietal genetic variability of several Portuguese varieties was studied for yield, must quality, and tolerance to abiotic stress, through indirect, rapid, and nondestructive measurements carried out in the field.

Read More

Water and nutritional savings shape non-structural carbohydrates in grapevine (Vitis vinifera L.) cuttings

Global changes and sustainability challenge researchers in saving water and nutrients. The response of woody crops, which can be forced at facing more drought events during their life, is particularly important. Vitis vinifera can be an important model for its relevance in countries subjected to climate changes and its breeding, requiring cuttings plantation and strong pruning.

Read More