🍇 Raboso

Raboso, registered as Raboso Piave, is a black-berried Vitis vinifera wine grape from north-eastern Italy. VIVC (no. 9864) gives Italy as its country of origin and lists 24 synonyms, among them Raboso del Piave, Raboso Nostrano and Friularo. In the Italian National Register of Grape Varieties it is Raboso Piave N., code 203, admitted on 25 May 1970 (Gazzetta Ufficiale no. 149 of 17 June 1970). There Friularo is an official synonym, usable only to designate DO and IGT wines of the province of Padua.

The Register's ampelographic description gives a medium, compact bunch 15-20 cm long with one or two wings, and medium berries with a thick, leathery, strongly pruinose blue-black skin. Budburst is early; ripening and leaf fall are late. Vigour is considerable, so the vine needs long, rich pruning. Resistance to rot is described as very good, while early budburst exposes the vine to spring frost.

A 2020 paper in Scientific Reports cites the parentage Raboso Veronese = Raboso Piave x Marzemina Bianca, which makes Raboso Piave a parent of Raboso Veronese.

The Register lists Raboso Piave in two DOCG, Bagnoli Friularo (Friularo di Bagnoli) and Piave Malanotte (Malanotte del Piave), and in DOC such as Piave, Colli Euganei, Riviera del Brenta and Bagnoli di Sopra. Bagnoli Friularo requires at least 90% Raboso Piave, with up to 10% other red grapes suited to the province of Padua. Piave Malanotte requires at least 70% Raboso Piave and up to 30% Raboso Veronese; 15-30% of the grapes must be dried before pressing, and the wine is aged at least 36 months, of which 12 in wood and 4 in bottle.