terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Water availability at budbreak time in vineyards that are deficitary irrigated during the summer: Effect on must volatile composition

Water availability at budbreak time in vineyards that are deficitary irrigated during the summer: Effect on must volatile composition

Abstract

In recent years, Mediterranean regions are being affected by marked climate changes, primarily characterized by reduced precipitation, greater concurrence of temperature extremes and drought during the growing season, and increased inter-annual variability in temperatures and rainfall. Generally, high-quality red wines need moderate water deficit. Hence, irrigation may be needed to avoid severe vine water stress occurring in some vintages and soils with low holding capacity. The aim of this work was to evaluate the effects of soil recharge irrigation in pre-sprouting and summer irrigation every week (30 % ETO) from the pea size state until the end of ripening (RP) compared to exclusively summer irrigation every week (R) in the same way that RP, on must volatile composition at harvest. The study has been carried out in 2021-2022 with four red varieties in different Spanish wine regions: Garnacha Tinta (Badajoz), Tempranillo (Valladolid), Syrah (Albacete) and Mencía (Lugo). The effects of irrigation frequency on must volatile composition have been evaluated through GC-MS.

In 2021 season, the total volatile composition (sum of free and glycosidically fractions) showed a trend to increase in R vs RP in Garnacha and Mencía cultivars due to the bound-glicosidically fraction. In contrast, Syrah cultivar showed a higher total concentration in RP than R. In 2022, a higher total concentration was observed in RP vs R for all cultivars with exception of Garnacha. These increases were motivated by bound-glicosidically fraction except to Tempranillo cultivar where the free fraction increased in RP vs R. In general, in 2022 season the soil recharge irrigation had a positive effect on musts volatile concentration. The results showed a higher effect of the variety and season than the irrigation strategy.

Acknowledgements: Project PID2019-105039RR-C4 for financing. We also thank to ICVV analytical service (Drs. Fernández, Morata and Pérez).

DOI:

Publication date: October 9, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Vilanova M.1,6, Costa B.S.1, Uriarte D., Moreno D., Yuste J., Martínez-Porro D., Montoro A., Torija I., Cancela J.J.5,6

1 Instituto de Ciencias de la Vid y el Vino, 26007 Logroño (Spain)
2 Centro de Investigaciones Científicas y Tecnológicas de Extremadura, 06187 Badajoz (Spain)
3 Instituto Tecnológico Agrario de Castilla y León, 47071 Valladolid (Spain)
4 Instituto Técnico Agronómico Provincial, 02007 Albacete (Spain)
5 Universidade de Santiago de Compostela – EPSE, 27002 Lugo (Spain)
6 CropQuality: Crop Stresses and Their Effects on Quality, Associate Unit USC-CSIC (ICVV)

Contact the author*

Keywords

volatiles, deficit irrigation, Vitis vinifera

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

First results on the chemical composition of red wines from the pressing of marc

In the Bordeaux vineyards, press wine represents approximately 15% of the total volume of wine produced[1]. Valuing this large volume of wine is necessary from an economic point of view, but also because of their organoleptic contribution to the blend, and their contribution to the construction of wines for laying down. Therefore, this study was developed considering the lack of recent scientific knowledge on the composition of red press wines. The aim of this study is to establish an initial assessment of their chemical composition including aromatic compounds and a phenolic part.

Read More

Predicting provenance and grapevine cultivar implementing machine learning on vineyard soil microbiome data: implications in grapevine breeding

The plant rhizosphere microbial communities are an essential component of plant microbiota, which is crucial for sustaining the production of healthy crops. The main drivers of the composition of such communities are the growing environment and the planted genotype. Recent viticulture studies focus on understanding the effects of these factors on soil microbial composition since microbial biodiversity is an important determinant of plant phenotype, and of wine’s organoleptic properties. Microbial biodiversity of different wine regions, for instance, is an important determinant of wine terroir.

Read More

Unveiling a hidden link: does time hold the key to altered spectral signatures of grapevines under drought?

Remote sensing technology captures spectral data beyond the visible range, making it useful for monitoring plant stress. Vis-NIR (Visible-Near Infrared) spectroscopy (400-1000 nm) is commonly used to indirectly assess plant status during drought. One example is the widespread use of normalized difference vegetation index (NDVI) that is strongly linked to green biomass. However, a knowledge gap exists regarding the applicability of this method to all the drought conditions and if it is a direct correlation to the water status of the plant.

Read More

Characterization of a Sémillon clonal population: exploring genetic diversity, metabolomic profiles, and phenotypic variations

Sémillon is a cultivated grape variety known for contributing to dry and sweet white wine production. However, only seven approved clones have been officially recognized in France[1]. In this study, we aimed to characterize the genetic diversity and metabolomic profiles of a Sémillon clonal population, shedding light on the potential variations within this important grape variety.

Read More

Cover crop management and termination timing have different effects on the maturation and water potentials of Glera (Vitis vinifera L.) in Friuli-Venezia Giulia

Inter-row soil tillage in vineyards, stimulates vigor and production due to the absence of competition for water and nutrients, however negatively affects organic matter content, soil erosion, and compaction, resulting in reduced fertility. In this study, we investigated the effects of different cover crop management approaches, including cultivation type and termination timing, on the physiological and productive responses of a Glera vineyard.
The experimental trial was conducted in Precenicco (UD) from 2019 to 2021. A commercial mixture for autumn cover cropping was sown in alternating rows, and the sowing pattern was changed each year.

Read More