Viticulture: 2020

28 October 2020

How to measure and manage the soil effect in terroir expression

Terroir relates the taste of wine to the place where it was produced. It involves the influence of climate, soil, cultivar and viticultural practices. Huge progression has been achieved over the past years in the understanding of how the soil ...
Cornelis van Leeuwen, Jean-Philippe Roby, Laure de Rességuier
30 September 2020

Berry primary and secondary metabolites in response to sunlight and temperature in the grapevine fruit zone

The chemical composition of berries at harvest, which will affect wine styles, is determined by complex physiological processes occurring from set through the fruit’s lifetime to maturity, and this is closely ...
Alain Deloire, Suzy Rogiers, Guillaume Antalick, Anne Pellegrino
18 September 2020

Leveraging the grapevine drought response to increase vineyard sustainability

Climate change will likely increase the risk of drought because of increased temperatures and changing rainfall patterns, and growers are already struggling to adapt. This is apparent in the increased use of irrigation in traditionally ...
Silvina Dayer, Mark Gowdy, Cornelis van Leeuwen, Gregory A. Gambetta
7 September 2020

Key facts about rotundone and practical ways to pepper your wine with this fascinating aroma compound

In 2008, the sesquiterpene rotundone was identified as the main contributor to the aroma of black pepper in wine. Since then, this potent aroma compound has been detected in several grape varieties. In most cases, rotundone is positively ...
Olivier Geffroy, Didier Kleiber, Alban Jacques
12 August 2020

Does water deficit negatively impact wine grape yield over the long term?

Like many other woody perennial crops, grapevine reproductive development occurs over a two-year cycle. Given that water deficits are commonplace in viticulture, especially for red wine grape production, this raises questions about how water ...
Alexander D. Levin, Alain Deloire, Gregory A. Gambetta
6 August 2020

Downy mildew is able to carry out its sexual cycle on resistant grape varieties

Previous studies have shown that new resistant grape cultivars limit epidemics caused by asexual reproduction of downy mildew. However, until now, there was a lack of knowledge on the sexual phase of the pathogen. This study demonstrates that ...
Lionel Delbac, Laurent Delière, Christophe Schneider, François Delmotte
1 July 2020

Forcing vine regrowth: a new technique to delay grape ripening until a cooler period

One of the most important climate change-related effects on wine grapes is the advance in harvest period. A strategy to counteract this effect consists in postponing berry ripening until the conditions are cooler. A technique for forcing vine ...
Fernando Martínez de Toda
24 June 2020

Strategies for adapting vineyards to a changing climate. (Re)-Learning from Mediterranean viticulture

Mediterranean areas face high temperatures, heat waves, and episodes of drought. These episodes are becoming more frequent in non-Mediterranean areas due to climate change. This paper will address viticultural practices used by Mediterranean ...
Luis Gonzaga Santesteban
10 June 2020

A few words on grapevine leaf water potential

The majority of vineyards are grown under limiting water supply, with consequences on grapevine physiology, berry growth and composition/quality versus wine styles. Assessing vine water status is crucial to understand vine function and to ...
Alain Deloire, Anne Pellegrino, Suzy Rogiers
5 June 2020

Apex-Vigne: A mobile application to facilitate the monitoring of growth and estimate the water status of the viticulture plots

The observation of apex growth is a simple method that was introduced to monitor the existence of hydric constraints in the vineyard (Rodriguez Lovelle et al., 2009; De Toda et al., 2010). Based on the direct observation in ...
Léo Pichon, Guilhem Brunel, Jean-Christophe Payan, Bruno Tisseyre
13 May 2020

Grapevine Latent Bud Dormancy and Shoot Development

Grapevine development comprises different phenological stages from bud break to berry maturation which are mainly temperature and water dependent. Pre bud break, there is a crucial stage called dormancy which can be divided in two periods: ...
Anne Pellegrino, Suzy Rogiers, Alain Deloire
23 April 2020

Beware the brown marmorated stink bug!

The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål, 1855) is a hemipteran insect in the Pentatomidae family native to eastern Asia. This extremely polyphagous species is spreading rapidly worldwide. It is responsible for ...
Jean-Claude Streito, Marguerite Chartois, Éric Pierre, Jean-Pierre Rossi
27 March 2020

Water as a critical issue for viticulture in southern Europe: sustainability vs competiveness

Water is a vulnerable resource in the Mediterranean region, but irrigation demands have been increasing to mitigate effects of environmental stress. Sustainable wine production involves the precise use of water in the vineyard and winery. ...
Joaquim Miguel Costa, Margarida Vaz, José Mariano Escalona, Ricardo Egipto, Carlos Manuel Lopes, Hipolito Medrano, Maria Manuela Chaves
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