Vides resistentes cultivadas en el Trentino prealpino. Primeros resultados del proyecto VEViR = Resistant vines cultivated in the Trentino pre-Alps. VEViR project first results

The availability of resistant grapevine varieties is of particular importance for viticulture in mountainous areas, with dangerous slopes and anthropized and sensitive areas. The VEViR project (RDP 2014-2020, Province of Trento) foresees the planting of some of these varieties in 3 plots (between 200 and 450 m above sea level), the monitoring of their phenology, the main parameters of vegetation and production, their sensitivity to the main cryptogams and some oenological characteristics. This work includes agronomic data on the white varieties Aromera, Bronner, Helios, Johanniter, Muscaris, Solaris, Souvignier Gris, Res29 and the reds Baron, Cabernet Cantor, Cabernet Carbon, Cabernet Cortis, Cabino, Monarch, Prior and Regent. As regards the oenological aspects of the white varieties, attention has been given to shikimic acid in wine, due to the role of this molecule as a variety marker and the possible impact on the traceability of PGIs for which some resistant varieties have recently been authorized. In this sense, the presence of Solaris within the limits of the law in Pinot Gris wines does not seem to impede the traceability of the latter; similarly the Muscaris in the Yellow Muscat. In red wines, we focussed on the anthocyanins diglucosides. With the exclusion of one, all varieties presented a sum of anthocyanins diglucosides between 270 and 900 mg / L, expressed as malvidin monoglucoside. These levels must be constantly monitored due to the legal limits still in place