Alberello, Italian term for free-standing, bush-style vines trained according to the gobelet system and used extensively in southern Italy. Probably imported by ancient Greeks.
Bill Nesto MW & Frances Di Savino, Chianti Classico, the Search for Tuscany’s Noblest Wine, (University of California Press, 2016).
David Gleave, ‘The Wines of Italy‘ (Salamander Books, London, 1989), p12.
Nicolas Belfrage MW, From Brunello to Zibibbo—The Wines of Tuscany, Central and Southern Italy (2nd edition, London, 2003), p460.
Oxford Companion to Wine 4th edition ed. Jancis Robinson MW and Julia Harding MW (Oxford University Press, 2015), p10.