Terroir 1996 banner
IVES 9 IVES Conference Series 9 Territoires et zones viticoles. Aspects climatiques, pédologiques, agronomiques. Caractérisation des terroirs viticoles: une étude systémique

Territoires et zones viticoles. Aspects climatiques, pédologiques, agronomiques. Caractérisation des terroirs viticoles: une étude systémique

Abstract

On assiste actuellement à l’émergence d’une demande sociale forte à l’égard de fonctions par ailleurs traditionnelles de l’agriculture, qui concernent la gestion des ressources du milieu, le maintien d’un tissu social rural, la valorisation des territoires ruraux et l’entretien des paysages.
L’intérét suscité amène à préciser comment se pose aujourd’hui à la recherche, la question de la gestion des territoires ruraux. En effet, les impératifs de la production agricole, les phénomènes de déprise et les directives européennes et mondiales relatives à la protection de l’environnement, conduisent à analyser précisément le métier et la fonction d’agriculteur et du vigneron en l’occurrence.
Je pense que les conclusions d’un tel colloque feront non seulement émettre une réflexion, mais surtout apporteront des éléments de réponse, pour une prise en compte réelle de la gestion des territoires (ce qui nécessite bien entendu des méthodologies de délimitation ou de zonage).
La diversité des champs disciplinaires concernés, des méthodologies mises en oeuvre, des partenaires impliqués, montre bien l’ampleur et la complexité d’une réflexion à laquelle souhaitent s’associer les acteurs de développement local, les décideurs, les professionnels de l’agriculture, de la viticulture et des structures de transformation, mais aussi plus largement les consommateurs.
La qualité s’élabore tout au long d’un processus. Ceci sollicite des compétences variées en agronomie, en création variétale, en technologie … Une telle approche de la qualité des produits peut constituer un principe fédérateur puissant, dans un contexte où le pilotage de la consommation par l’aval en fait un élément déterminant de la compétitivité des filières et de leur diversification.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

CHRISTIAN ASSELIN

INRA-URW-Angers
42, rue Georges Morel – 49071 Beaucouzé cedex

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Étude de l’adaptation des cépages Muscat à petits grains et Muscat d’Alexandrie dans l’A.O.C. Muscat de Rivesaltes

L’A.O.C. Muscat de Rivesaltes prévoit l’utilisation de 2 cépages Muscats : le Muscat à petits grains (M.P.G) et le Muscat d’Alexandrie (M.A).

An overview of the impact of clone, environmental factors and viticultural techniques on rotundone concentration in red wines

Rotundone is the main aroma compound responsible for peppery notes in red wine. This positive and very potent molecule has an odor threshold of 8 ng/L in water and 16 ng/L in red wine. It has been detected in several grape varieties with some of the highest concentrations recorded in Syrah, Duras, Tardif and Noiret, an interspecific hybrid grown in the North-East of the USA. If several winemaking practices have been identified to lower rotundone in wine, up to date, no enological solution has proved its efficiency to maximize it. This means that efforts to produce high rotundone wines must be undertaken in vineyards. This work provides practical ways that can be used by winegrowers to modulate rotundone levels in their wines.

EXPLORING THE METABOLIC AND PHENOTYPIC DIVERSITY OF INDIGENOUS YEASTS ISOLATED FROM GREEK WINE

Climate change leads to even more hostile and stressful for the wine microorganism conditions and consequently issues with fermentation rate progression and off-character formation are frequently observed. The objective of the current research was to classify a great collection of yeast isolates from Greek wines based on their technological properties with oenological interest. Towards this direction, fourteen spontaneously fermented wines from different regions of Greece were collected for further yeast typing. The yeast isolates were subjected in molecular analyses and identification at species level.

Effect of abiotic stress and grape variety on amino acid and polyamine composition of red grape berries

Vines are exposed to environmental conditions that cause abiotic stress on the plants (drought, nutrient and mineral deficits, salinity, etc.). Polyamines are growth regulators involved in various physiological processes, as in abiotic plant stress responses. Stressful conditions can modify grape’s composition, and in this work, we have focused on studying the effect of abiotic stress on the composition of polyamines and amino acids in grapes. In addition, the effect of grape variety on these compounds has been studied.

Impact of smoke exposure on the chemical composition of grapes

Vineyard exposure to smoke can lead to grapes and wine which exhibit objectionable smoky and ashy aromas and flavours, more commonly known as ‘smoke taint’ [1, 2]. In the last decade, significant bushfires have occurred around the world, including near wine regions in Australia, Canada, South Africa and the USA, as a consequence of the warmer, drier conditions associated with climate change. Considerable research has subsequently been undertaken to determine the chemical, sensory and physiological consequences of grapevine exposure to smoke. The sensory attributes associated with smoke-tainted wine have been linked to the presence of several smoke-derived volatile phenols, such as guaiacols, syringols and cresols [2].