The red grape variety comes from Italy, Synonyms are Brunetta, Nerét, Nerét Gros, Neretto, Neretto di San Giorgio and Neretto Nero. Despite apparently suggesting synonyms or morphological No similarities with the varieties Neret di Saint-Vincent. Neretto Duro. Neretto Gentile or Neretto Nostrano be confused. According to 2004 DNA analysis she’s probably from an intersection Nebbiolo x unknown (extinct) variety emerged). A suspected relationship to Sciaccarello ( mammolo ) is according to the biologist Dr. José Vouillamoz doubtful. The variety is after the municipality of Bairo in the province of Torino Piedmont named. It is there in the DOC wines Canavese and Pinerolese authorized. The acreage in 2010 was 34 hectares with a strongly falling trend (Kym Anderson ).
Source : Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images : MIPAAF - National Vine Certification Service