The white grape variety comes from Spain. Synonyms are Tortozon ( France ); Alva ( Portugal ); Alligator, Alvarelhão Branco, Coma, Malvasia, Tardana, Tortozón ( Spain ). It is not allowed, despite seemingly suggestive synonyms, with the variety Touriga Branca (Alvarelhão Branco). The variety was already in 1513 as Tortozón by the Spanish writer Gabriel Alonso de Herrera (1470-1539) in the work "Obra de Agricultura" mentioned. According to done in the year 201 DNA analysis is it from a supposedly natural cross between Rojal Tinta x Heptakilo ( Axina de Tres bias ) (but based on only 20 DNA markers, see below molecular Genetics ). A crossing Planta Nova x To lift (Gibi) gave the variety alarije,
The late-ripening vine (as the synonym Tardana suggests) has particularly thick-skinned berries. It produces fresh white wines with peach and lemon flavors. She is also called table grape used. The variety is mainly in Spain in the region Levant in the DO area Requena, as well as the areas La Mancha and Extremadura grown on a total of 1,366 hectares of vineyards. In Portugal she occupies the fields Tras-os-Montes and Ribatejo a total of 29 hectares. In France, it is grown under Tortozon in the Ariège department. In 2010, a total of 1,395 hectares of vineyards were reported (Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012