Terroir 1996 banner
IVES 9 IVES Conference Series 9 Adaptation et expression de l’encépagement et mode de conduite en différents terroirs de la région du Douro/vin de Porto

Adaptation et expression de l’encépagement et mode de conduite en différents terroirs de la région du Douro/vin de Porto

Abstract

Ce travail a pour objet l’analyse des résultats agronomiques obtenus sur trois unités expérimentales du Centre d’Etudes Vitivinicoles du Douro (CEVDouro), localisées dans des écosystèmes différenciés de la Région du Douro/Vin de Porto, à différentes altitudes (130, 330 et 520 mètres) et à des expositions diversifiées (SE, N et W).

Sur deux de ces unités expérimentales on a évalué le comportement du cépage Touriga Francesa sur huit porte-greffes, à partir des enregistrements obtenus au cours de dix années d’observations. La troisième unité d’expérimentation à servi à l’étude du comportement préliminaire (phase de formation), sur un seul porte-greffe (11 OR) et sur six différentes modalités de conduite (trois hauteurs de plan de végétation et deux hauteurs de formation).

Les résultats des expériences montrent une forte influence de l’altitude, aussi bien que de l’exposition, dans les niveaux de sucre.
Cet exposé tente de faire une analyse globale en présentant la méthode de zonage suivie depuis 1948 dans la Région du Douro/Vin de Porto (Método de Pontuação Moreira da Fonseca), l’importance relative et l’amplitude de variation des facteurs pris en compte dans cette méthode, pour le classement des 100 mille parcelles de vigne qui composent la région.

DOI:

Publication date: March 25, 2022

Type: Poster

Issue: Terroir 1996

Authors

M. SOUSA (1), R. CASTRO (2)

(1) Centro de Estudos Vitivinícolas do Douro, 5050 Régua, Portugal
(2) Instituto Superior de Agronomia, Tapada da Ajuda, 1399 Lisboa Codex, Portugal

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Assessing the Effectiveness of Electrodialysis in Controlling Brettanomyces Growth in Wine

Brettanomyces yeast can negatively impact the quality and stability of wines, posing a significant challenge to winemakers. [1] This study aims to develop novel management practices to limit Brettanomyces impact on wines by evaluating the effectiveness of electrodialysis (ED) technology in removing magnesium (Mg2+) from wine to prevent the development of Brettanomyces yeast. The ED technique utilizes charged membranes to extract ions from the wine, and it is considered an alternative to cold stabilization that requires less energy. [2]

Investigation on harvesting period choices for correct interpretation of experimental results

Happens too often in scientific papers to find the same harvesting period of a cultivar, although the used treatment influence a maturity curve of investigated thesis.
This inevitably leads to wrong conclusions when comparing the treatment effects, since obtained on maturity stages more or less far from those technologically correct.

Effect of vineyard nitrogen management on Souviginer gris wine sensory quality and aromatic compounds

Fungus-Resistant Grape (FRG) varieties represent a promising approach to address the challenges of climate change and sustainability in viticulture.

Analytical and Chemometric Investigation of Phenolic Content of South African Red Wines

Phenolic compounds have been the focus of a lot of research in recent years for their important contribution to sensory characteristics of wine, their beneficial health effects, as well as the possibility they offer of characterising wines. In this contribution, a method is developed that allows the direct injection of wine samples followed by liquid

EFFECT OF WHOLE BUNCH VINIFICATION ON THE ABUNDANCE OF A SWEETENING COMPOUND

In classic red wine-making process, grapes are usually destemmed between harvest and the filling of the vat. However, some winemakers choose to let all or a part of the stems in contact with the juice during vatting, this is called whole bunch vinification. For instance, this practice is traditionally used in some French wine regions, notably in Burgundy, Beaujolais and the Rhone Valley. The choice to keep this part of the grape is likely to affect the sensory properties of wine, as its gustatory perception1,2.