Terroir 2010 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2010 9 Historic and future climate variability and climate change: effects on vocation, stress and new vine areas (T2010) 9 Effect of vine nitrogen status on grape and wine quality: Terroir study in the Vaud vineyard (Switzerland)

Effect of vine nitrogen status on grape and wine quality: Terroir study in the Vaud vineyard (Switzerland)

Abstract

This study was conducted on soil-climate-plant relations (terroir) and their impact on grape composition and wine quality in the canton of Vaud by Agroscope Changins-Wädenswil ACW. An assessment of the vine nitrogen status on different terroirs was made by means of chlorophyll index, leaf nitrogen content and yeast assimilable nitrogen. Vine nitrogen status was observed to be highly related to soil type. Vines on the soil type “bottom moraines” showed lower vigour, smaller berries and a lower nitrogen status. Sensory analysis discriminated wines from different soil types. Vine nitrogen status through yeast assimilable nitrogen turned out to be strongly correlated with wine positive sensory descriptors and negatively correlated to wine astringency. In our study, the main environmental factors influencing vine development and wine quality was the soil type via its effect on vine nitrogen level. Our results confirm the role on nitrogen supply in grape and wine quality and underline nitrogen as a key factor in understanding the terroir effect.

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

J-S Reynard, V. Zufferey, F. Murisier

Agroscope Changins-Wädenswil ACW, CH-1260 NYON, Switzerland

Contact the author

Keywords

Soil component of terroir, vine nitrogen status, ecophysiology, grape and wine quality

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

EXTRACTIBLE COMPOUNDS FROM MICROAGGLOMERATED CORK STOPPERS

After bottling, the wine continues to evolve during storage. The choice of the stopper is an important factor in this evolution. In addition to the oxygen permeability of the closure, the migration of stopper compounds into the wine can also have an impact on the wine organoleptic properties. Many studies have shown that transfers of volatile compounds from the stoppers into the wine can happen depending on the type of closure used (1). Moreover, when cork-made stoppers are used, the migration of phenolic compounds from the stopper into the wine can also occur (2, 3).

The effect of organic, biodynamic and conventional production processes on the intrinsic and perceived quality of a typical wine

AIM: The aim of this study was to evaluate the impact of the organic, biodynamic and conventional production processes on the typicality of the Chianti DOCG wine and the relation with the environmental impact in terms of CO2 production

THE EFFECT OF DIFFERENT TERROIRS ON AROMA COMPOUNDS OF ‘KALECIK KARASI’ WINES

Kalecik Karası is a domestic grape variety of Turkey, originating from Kalecik district, 80 km from Ankara. Although there is no definite evidence, it is known that it was used in wine production by many civilizations that lived in the Anatolian region, especially the Hittites. Compared to other black wine grapes, it stands out with its low tannin content, rich fruity aroma and complex structure. In good vintages, red fruits such as strawberries, cherries and raspberries stand out in the aroma profile. Although its structure is elegant, it has the potential to age and develop similar to the ‘Pinot Noir’ wine of the Burgundy region. This offers a complex aroma structure including red flowers, earth and ripe fruits.

Bilan de l’impact des pratiques viticoles sur la qualité biologique des sols

Dans le cadre de TerclimPro 2025, Laure Gontier a présenté un article IVES Technical Reviews. Retrouvez la présentation ci-dessous ainsi que l’article associé : https://ives-technicalreviews.eu/article/view/8481

Phenology, thermal requirements and maturation of the SR 0.501-17 wine grape hybrid cultivated in contrasting climate

The use of hybrids in viticulture is one of the alternatives for sustainable production in hot and rainy regions during grapevine maturation. This sustainable production concerns the reduction of pesticide use, adaptation to climate and control of vine decline. The SR 0.501-17 wine grape hybrid, developed in the grapevine program of the Agronomic Institute of Campinas (IAC), is characterized by producing white grapes with small spherical berries with seeds. The agronomic characterization of this hybrid, especially in different climatic conditions, as well as the evaluation of its performance in winemaking are necessary. The objective of this work was to characterize the duration and thermal requirements of the different phenological stages and the influence of rainfall on the physicochemical characteristics of the must in two contrasting climate regions of the State of São Paulo.