Terroir 2008 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2008 9 Global approach and application of terroir studies: product typicity and valorisation 9 Study of the vine performance and the wine composition of Tannat on the terroir of Colonia del Sacramento – Uruguay

Study of the vine performance and the wine composition of Tannat on the terroir of Colonia del Sacramento – Uruguay

Abstract

Grape-growing terroirs were defined according to the method proposed by Falcetti and Asselin (1996) near of Colonia de Sacramento, a city of Uruguay situated on the left of the “Rio de la Plata”. In a second stage, the performance of the plants of Tannat variety implanted in vineyards situated at two UTB, named “Real de Vera” and “Riachuelo”, were analyzed to confirm the suggested delimitation during three years. The studies were realized in three vineyards. The weight of the berries and the pruning weight by plant were determinated. The determination of the leaves water potential was realized after the budburst and the potential exposed leave area was determinated at the veraison. Vinifications of 50 kg of grapes per vineyards were done. The wines were analyzed, determining the classical oenological parameters and the global polyphenolic composition. The index of Ravaz, the ratio SFE p / yield and the water status by plots were determinated. The effect of the year was clearly observed on the total of the vineyards. The yields per plant, the weight of pruning, the potential foliar surface expose and the index of Ravaz presented significant differences between vineyards. The differences between the indicators of physiologic answer, the yields and the wine composition were clearly explained by the characteristics of the soil, the water status and the viticultural practices. The plants submit at stress during the maturation were the most equilibrated.

Download the PDF

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

Gerardo ECHEVERRÍA (1); Milka FERRER (1); Gustavo GONZÁLEZ-NEVES (1,2); Alvaro MONTAÑA (1); Gianfranca CAMUSSI (1); Juan HERNÁNDEZ (3); Rodolfo PEDOCCHI (1)

(1) Universidad de la República (UDELAR) – Facultad de Agronomía – Uruguay
Domicilio: Garzón 780, CP 12400, Montevideo, Uruguay.
(2) I.NA.VI (Instituto Nacional de Vitivinicultura) – Las Piedras, Uruguay
(3) Universidad de la República (UDELAR) – Facultad de Ciencias – Uruguay

Contact the author

Keywords

Tannat, terroir, physiologic response indicators, wine composition, Colonia del Sacramento

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Phloem anatomy traits predict maximum sugar accumulation rates

Heat and water stress can accelerate berry sugar accumulation and lead to excessive sugar-to-acid ratios at harvest, producing bland, overly-alcoholic wines. Selecting grapevines for slower sugar accumulation could help maintain wine quality under future, hotter conditions, but these efforts have been stymied by our limited understanding of the traits determining sugar accumulation rates. Here, we measured traits characterizing the structure and anatomy of the sugar transport system – the phloem – in 16 winegrape cultivars and tested for relationships with sugar accumulation rates and cultivar climate classifications.

Read More

Hplc-ms analysis of carotenoids as potential precursors for 1,1,6-trimethyl-1,2-dihydronaphthalene (TDN) in riesling grapes

In recent years, an undesirable premature “aged” character has been noticed in a growing number of young Riesling wines, associated with extreme weather conditions leading to increased radiation intensity and/ or sun exposure of grapes.

Read More

Sustainability and resilience in the wine sector

Resilience and sustainability are two fundamental concepts in the sustainable development of the wine sector, being closely interconnected.

Read More

Characterization of the thiol aromatic potential of a new resistant grape variety: Floreal

Aims: Due to climate change and the desire to decrease enological inputs (organic farming), the vineyard has to be modified and the selection of new resistant grape varieties as an alternative is researched intensively today. From January 2018, four new grape varieties that are resistant against mildew and odium have been added to the official

Read More

Rootstock regulation of scion phenotypes: the relationship between rootstock parentage and petiole mineral concentration

Grapevine is grown grafted in most of the world largely because of Phylloxera. Rootstocks not only provide tolerance to Phylloxera, but also ensure the supply of water and mineral nutrients to the scion. Rootstocks are an important means of adaptation to environmental conditions if we want to conserve the typical features of the currently used scion genotypes. To aid this adaptation, we can exploit the large diversity of rootstocks used worldwide. To fully explore this existing rootstock diversity, this work benefits from the unique GreffAdapt vineyard, in which four scion genotypes were studied onto 55 commercial rootstocks in three blocks. The aim of this study was to characterise rootstock regulation of scion mineral status and how it relates to scion development.

Read More