The 20th GiESCO International Meeting is held in Mendoza (Argentina), November 5-10, 2017.
Assessing and mapping the spatial variability of vine water status within vineyards constitute a major challenge. An effective sampling system, capable of providing a large amount of accurate observations, is needed to define accurate irrigation decision-making.
The effect of fruit zone leaf removal and harvest maturity level was studied in a commercial Cabernet-Sauvignon vineyard in the Maule Valley (Chile) during three growing seasons from 2013/2014 to 2015/2016.
The impact of different canopy systems and viticultural management practices on fruit exposure have been widely investigated, and the potential impact of microclimate on fruit composition is well recognised.
In the last years, consumers are increasingly demanding for healthy foods. Table grapes are considered an important source of bioactive compounds and therefore their availability in the market should last as long as possible while preserving the phenolic quality.
Volatile aroma compounds in grapes are found either as free and as glycoconjugated molecule. Glycosylated aroma precursors belong mainly to four compounds families: non terpenic alcohols, phenols, terpenes and norisoprenoids.
This paper performs the characterization of the winegrowers of the major wine regions of Bolivia, -Central Valley of Tarija and the Canyon of Cintis- starting by identifying key features and technical differences in both study areas, then building typologies of the main viticultural systems and at the end assessing their sustainability.
This work is part of the INTA-COVIAR project Analysis of the social capital of the vine growers of the Northern Oasis of Mendoza: impact on the territory and spatial planning. One of the goals of this study is to know the perception of the territorial transformations and their impact on viticultural activity, for which the bourdiano social capital approach was used.
Most of reasoning is based on a binary or dualistic exchange. But each relation between two is, either related to another one or a context, or submitted to a regulating feed-back. Therefore it is proposed to systematically reason on a basis of three elements (triptych), as the human brain, place of our thought, is also structured in three encased elements: the ‘proto-reptilian’, ‘paleo-mammalian’, ‘neo-mammalian’ brains (Mc Lean, 2006, in L. Tonielli, 2015). Ten examples are analyzed to show the universality and the interest of a ‘triptych’.
Concerning sustainable Viticultures, the GiESCO notices the current confusion around the notions of:
- ‘integrated’ Viticulture which does not clearly set itself apart of classical so-called ‘reasoned’ Viticulture and involves series of certifications which are distinguishable with difficulty,
- ‘agro-ecological’ Viticulture which adds important elements of sustainability to ‘integrated’ Viticulture, without clarifying really the latter,
- ‘organic’ Viticulture which leans on some unbearable principles such as the opposition between chemical or natural products, with besides a frequent recourse to copper-products,
- ‘biodynamic Viticulture’ which recommends environment-friendly methods, but for very not scientifically verified.
To improve its sustainability, viticulture should increase the provision of ecosystem services to decrease its use of inputs and the resulting environmental impact while maintaining high socio-economic performance. Soil functions in relation with their physical, chemical and biological properties can be regulated by proper soil surface management.