terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Influence of irrigation frequency on berry phenolic composition of red grape varieties cultivated in four spanish wine-growing regions

Influence of irrigation frequency on berry phenolic composition of red grape varieties cultivated in four spanish wine-growing regions

Abstract

The global warming phenomenon involves the frequency of extreme meteorological events accompanied by a change in rainfall distribution. Irrigation frequency (IF) affects the spatial and temporal soil water distribution but its effects on the phenolic composition of the grape have been scarcely studied. The aim of this work was to evaluate the effects of four deficit irrigation frequencies of 30 % ETo: one irrigation per day (T01), two irrigations per week (T03), one irrigation per week (T07) and one irrigation every two weeks (T15) on berry phenolic composition at harvest. The experiment was carried out during two consecutive seasons (2021 and 2022), in vineyards of Garnacha Tinta (in Badajoz: T03, T07, T15), Tempranillo (in Valladolid: T03, T07, T15), Syrah (in Albacete: T03 and T07) and Mencía (in Lugo: T01, T03, T07). Polyphenolic substances were extracted from grapes. Thirty-six compounds grouped into anthocyanins and non-anthocyanins compounds were analyzed by HPLC. In 2021, practically no effect on the accumulation of phenolic compounds caused by FI was observed. Only the concentration of acetates in Syrah increased with the T07 treatment compared to T03. In 2022, T07 compared to T03 favored the accumulation of anthocyanins compounds in Tempranillo and Syrah, while Mencía was hardly affected and Garnacha Tinta even decreased its values significantly. In Tempranillo, T15 tended to slightly increase the anthocyanin content compared to T03, while in Garnacha Tinta the concentration of acetates tended to decrease. T01 applied to Mencía tended to increase the anthocyanin content, mainly compared to T03. Regarding non-anthocyanins compounds, the different irrigation treatments did not affect the accumulation of the analysed compounds. The results show that the phenolic composition of grapes, mainly anthocyanins, can be affected by the irrigation strategy applied and its effects may vary depending on the variety and the year.

Acknowledgements: Grant PID2019-105039RR-C4 funded by MCIN/AEI/10 .13039/501100011033.

DOI:

Publication date: October 25, 2023

Issue: ICGWS 2023

Type: Poster

Authors

D. Moreno1, A. Montoro2, J. Yuste3, J.J. Cancela4, D. Martínez-Porro3, I. Torija2, M. Fandiño4, M. Vilanova5, L.A. Mancha1, D. Uriarte1

1Centro de Investigaciones Científicas y Tecnológicas de Extremadura, 06187 Badajoz (España)
2Instituto Técnico Agronómico Provincial, 02007 Albacete (España)
3Instituto Tecnológico Agrario de Castilla y León, 47071 Valladolid (España)
4Universidade de Santiago de Compostela – EPSE, 27002 Lugo (España)
5Instituto de Ciencias de la Vid y el Vino, 26007 Logroño (España)

Contact the author*

Keywords

anthocyanins, deficit irrigation, non-anthocyanins, Vitis vinifera

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Investigating the Ancient Egyptian wines: The wine jars database

In Ancient Egypt, wine was a luxury product consumed mainly by the upper classes and the royal family and offered to gods in daily religious rituals in the temples.
Since the Predynastic (4000-3100 BC) period, wine jars were placed in tombs as funerary offerings. From the Old Kingdom (2680-2160 BC) to the Greco-Roman (332 BC-395 AD) period, viticulture and winemaking scenes were depicted on the private tombs’ walls. During the New Kingdom (1539-1075 BC), wine jars were inscribed to indicate: vintage year, product, quality, provenance, property and winemaker’s name and title.

Effect of pH and ethanol on Lactiplantibacillus plantarum in red must fermentation: potential use of wine lees

Wine is the result of the alcoholic fermentation (AF) of grape must. Besides AF, wine can also undergo the malolactic fermentation (MLF) driven out by lactic acid bacteria (LAB). Among LAB, Oenococcus oeni and Lactiplantibacillus plantarum are the dominant species in wine. Even if O. oeni is the most common LAB undergoing MLF in wine, due to its high tolerance to wine conditions, L. plantarum can be used to undergo MLF in must. The moderate tolerance of L. plantarum to low pH and ethanol, may compromise the fermentative process in harsh wines.

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).

Drought tolerance assessment and differentiation of grapevine cultivars using physiological metrics: insights from field studies

This study aimed to validate a protocol and compare metrics for evaluating drought tolerance in two Vitis vinifera grapevine cultivars under field conditions. Various metrics were calculated to represent the physiological responses of plants to progressive water deficit. Data were collected from Sauvignon Blanc and Chardonnay plants subjected to three irrigation levels during the 2022-2023 season, along with data from three previous seasons. Hydro-escape areas were used to assess the plant’s ability to reduce water potential with decreasing soil water availability.

Agronomic behavior of three grape varieties in different planting density and irrigation treatments

In the O Ribeiro Denomination of Origin, there is a winemaking tradition of growing vines under a high-density plantation framework (8,920 vines/ha) and maintaining its vegetative cycle under rainfed conditions.
Currently, viticulture is advancing to plantation frames in which the density is considered medium (5,555 vines/ha), thus allowing mechanized work to be carried out for vineyard management operations. Although, the application of irrigation applied proportionally to the needs of the vegetative cycle of the vine, is a factor that increasingly helps a good development of the vine compared to the summer period, with increasingly uncertain weather forecasts.