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…

Polysaccharide families of lyophilized extracts obtained from unfermented varietal grape pomaces

The recovery of bioactive compounds from grape and wine by-products is currently an important objective for revaluation and sustainability. Grape pomace is one of the main by-products and is a rich source of some bioactive compounds. The aim of this study was to evaluate the polysaccharide (PS) composition of extracts obtained from pomaces of different white and red grape varieties of Castilla y León. Grape pomaces were obtained after the pressing in the winemaking process.

Read More

Phenolic composition and chromatic characteristics of blends of cv. Tempranillo wines from vines grown with different viticultural techniques in a semi-arid area

The quality and color stability of red wines are directly related to content and distribution of phenolic compounds. However, the climate change produces the asynchrony between the dates of technological and maturity of grapes. The crop-forcing technique (CF) restores the coupling between phenolic and technological ripeness while limits vineyard yields. Blending of wines is frequently used to equilibriate composition of wines and to increase their stability, color and quality. The aim of the present work is to study the phenolic composition and color of wine blends made with FW (wines from vines subjected to CF) and CW (wines for vines under the usual cultivation practices).

Read More

Phenolic extraction and dissolved oxygen concentration during red wines fermentations with Airmixig M.I.™

During red wine fermentation, the extraction of phenolics compounds and sufficient oxygen provision are critical for wine quality [1,2]. In this trial, we aimed at evaluating the kinetics of phenolic extraction and dissolved oxygen during red wine fermentations using the airmixing system. Twenty lots of red grape musts were fermented in 300.000 L tanks, equipped with airmixing, using two injection regimes (i.e., high and low intensity, and high and low daily frequency). An oxygen analyzer was introduced into the tanks in order to record the concentration of dissolved oxygen over time.

Read More

Biodiversity and biocontrol ability of Trichoderma natural populations in soil vineyards from Castilla y León region (Spain)

Trichoderma is a microorganism present in many agricultural soils and some of its species could be used as natural biological control agents. In this work, the presence of natural populations of Trichoderma was estimated in soil vineyard and its biocontrol capacity against Phaeoacremonium minimum, one of the main agent causals of grapevine trunk diseases instead of using pesticides. Moreover, physicochemical variables in soil such as pH, organic matter and nutrients were evaluated to determine a possible correlation to natural populations of Trichoderma.

Read More

The potential of some native varieties of Argentina for the production of sparkling wines. Effect of lees contact time 

Grapevine varieties from South-America, commonly known as criollas, originated because of the natural crossbreeding of grapevine varieties brought by the Spaniards. The objective of this work was to evaluate the potential of some varieties to produce sparkling wines considering the effect of lees contact time. The following varieties were used: Moscatel Rosado, Criolla Chica, Pedro Gimenez, Blanca Oval, Canelón, and the European variety Chardonnay (control), planted in the ampelographic collection of EEA Mendoza INTA (Argentina). Pilot-scale vinifications were carried out to obtain the base wines, in 20 L glass containers. The second fermentation was performed through the traditional method.

Read More