Optimization of in vitro establishment of grapevine varieties for fast micropropagation 

Grapevines have traditionally been grown in semi-arid areas, but viticulture is now compromised by climate change. Therefore, it is necessary to implement environmentally friendly viticulture practices to adapt grapevines to current climatic conditions. In this context, organic mulches offer many benefits, such as reduced soil erosion and increased organic matter, soil water content and crop productivity. However, these practices must not compromise grape and wine quality. Therefore, the objective of this study was to evaluate the effect on wine physicochemical and phenolic composition and sensorial properties of different soil management practices on the vine row. Over four years, five soil treatments were examined in two different vineyards.

The soil plays a pivotal role in the agroecological transition processes, due to its numerous implications in production support, water regulation, air and nutrient supply, and its function of reservoir for the major part of planet biodiversity. Therefore, soil quality and adequate soil management are key levers for an ecologically and economically sustainable viticulture. Gascogn’Innov (2017-2022) is an Operational Group funded by the European Innovation Partnership for Agriculture. As such, it gathered winegrowers from the south-west of France (Gascony), scientists, advisors and technicians, around a project focused on the biological functioning of viticultural soil and the design of better-adapted technical paths for soil protection.

Rosé sparkling wines require special elaboration methods that ensure their quality and color stability during aging in bottle. The objective of this work was to evaluate the effect of the addition of different concentrations of gum arabic and tannin in Brazilian rosé sparkling wines elaborated by the Traditional method (cv. Cabernet Sauvignon) and their impact on the phenolic composition during aging in bottle.

Mycobiota from vine-to-wine is highly diverse and can affect grape quality at harvest as well as wine sensory properties, sometimes leading to off-flavors.

The grapevine is facing significant challenges due to climate change, as rising temperatures impact its physiological traits and disrupt plant phenology.