Search results for "Viticulture"
showing 10 items of 121 documents
Approche historique du processus de délimitation des AOC vinicoles françaises. Contribution à la compréhension des principes et de l’application d’un…
2010
National audience
La naissance du système des AOC : étude de la mise en place du Comité National des Appellations d'Origine (1935-1938)
2011
National audience
Bibliometric analysis of publications by South African viticulture and oenology research centres
2012
We analysed the production, impact factor of, and scientific collaboration involved in viticulture and oenology articles associated with South African research centres published in international journals during the period 1990–2009. The articles under scrutiny were obtained from the Science Citation Index database, accessed via the Web of Knowledge platform. The search strategy employed specific viticulture and oenology terms and was restricted to the field ‘topic’. The results showed that 406 articles were published during the review period, with the most number of publications being in the South African Journal of Enology and Viticulture (n = 34), American Journal of Enology and Vit…
Grapevine row orientation mediated temporal and cumulative microclimatic effects on grape berry temperature and composition
2021
Abstract Ambient radiation and temperature are global drivers of grapevine growth, grape yield and composition, and wine quality. Knowledge of the implications of vineyard row orientation/microclimate is required for decision-making in current and future macro- and mesoclimates. Temporal and cumulative microclimatic changes, induced by vine row orientation (NS; EW; NE-SW; NW-SE) of vertically trellised Shiraz grapevines, on berry pulp temperature and composition at different ripeness levels were investigated. Berries dynamically gained heat energy relative to: ambient climate/weather; direct canopy wall/bunch irradiance; and berry skin colour development. Berries exposed to direct solar rad…
Sustainable viticulure in Brazil's context : a proposition
2015
The thesis involves the proposition of a framework for the sustainability of viticulture in Brazil using a territorial approach built from two exploratory studies in Brazilian wine regions of Campanha Gaúcha and Vale do São Francisco based on preliminary studies. Those studies involved technical visits in three countries (France, Italy and Spain) and frameworks’ observations in another five (South Africa, Australia, New Zealand, USA and Chile). The framework proposed is called BaccuS. It is structured on a matrix basis, with an axis corresponding to dimensions and other to guidelines, both in ascending order of complexity and development. There are eighteen topics that represent areas to ac…
Climate change impacts on phytosanitary risk evolution in north-eastern France vineyards : observations and modeling : The case of powdery mildew
2021
From now on, agriculture must adapt and anticipate climate change, whose impact has already been observed on the biology of crops and their production. Beyond plants, this climate change also impacts pathogen development and therefore host/pathogen interactions. Thus, building adaptation strategies requires considering not only the crops but also the organisms with which they interact.The objective of this thesis is to characterize the impact of climate change on the phytosanitary risk related to grapevine powdery mildew (Erysiphe necator) in the wine regions of Burgundy and Champagne. More particularly, it questions two central aspects related to the epidemic risk: the grapevine sensitive …
La revendication d'un terroir viticole : la Côte-de-Beaune à la fin du XVIIIe siècle
2011
International audience; L'habitude d'associer précisément le vin à son lieu de production, à son « climat », opération définissant à l'heure actuelle le terroir viticole bourguignon, apparut au cours du xviii e siècle. L'histoire de la règlementation commerciale du « vin de Beaune » depuis le Moyen Âge laisse entrevoir quelques raisons profondes de ce processus essentiel de formalisation d'un terroir, lequel traduit l'évolution des contraintes socio-économiques, entre droits collectifs et libéralisation du commerce. Le lieu en effet, inutile aux yeux des législateurs dans la définition du vin tant que les modalités de règlements purent se limiter au cadre strict dessiné par les privilèges d…
Effervescence et tranquillité autour de la transmission de l’entreprise agricole en général et viti-vinicole en particulier
2019
Titre original dans le colloque : "Les formes juridiques de l’exploitation face à l’enjeu de transmission"ISBN : 978-2-7110-3469-7; International audience; Les organisateurs de ce colloque, pluridisciplinaire, ont souhaité, en guise d’ouverture, brosser à grands traits les principaux enjeux que soulève, sous l’angle du droit français, la transmission d’une exploitation viticole. Une définition préalable des termes du sujet – notions juridiques d’activités viti-vinicoles, d’entreprise viti-vinicoles, de transmission – constitue, à cet égard, un préambule indispensable.
The impact of soil erosion on soil fertility and vine vigor. A multidisciplinary approach based on field, laboratory and remote sensing approaches
2018
Soil erosion processes in vineyards, beyond surface runoff and sediment transport, have a strong effect on soil organic carbon (SOC) loss and redistribution along the slope. Variation in SOC across the landscape can determine differences in soil fertility and vine vigor. The goal of this research was to analyze the interactions among vines vigor, sediment delivery and SOC in a sloping vineyard located in Sicily. Six pedons were studied along the slope by digging 6 pits up to 60 cm depth. Soil was sampled every 10 cm and SOC, water extractable organic carbon (WEOC) and specific ultraviolet absorbance (SUVA) were analyzed. Erosion rates, detachment and deposition areas were measured by the po…
Use of Sentinel-2 Satellite for Spatially Variable Rate Fertiliser Management in a Sicilian Vineyard
2022
Satellites can be used for producing maps of within-field crop and soil parameters and, consequentially, spatially variable rate crop input application maps. The plant vegetative vigour index (i.e., Normalised Difference Vegetation Index—NDVI) and the leaf water content index (i.e., Normalised Difference Water Index—NDWI) maps were used to study—through both time and space—the phenological phases of two plots, with Syrah and Nero d’Avola grapevine varieties, in a Sicilian vineyard farm, located in Naro (Agrigento, Sicily, Italy). The aim of this work is to produce spatially variable rate nitrogen fertiliser maps to be applied in the two vineyard plots under stu…