The white grape variety comes from Spain. Synonyms are Tortozon ( France ); Alva ( Portugal ); Alligator, Alvarelhão Branco, Coma, Malvasía, Tardana, Tortozón ( Spain ). In spite of apparently indicative synonyms, it may not be of the variety Touriga Branca (Alvarelhão Branco) can be confused. The variety was already called Tortozón by the Spanish writer in 1513 Gabriel Alonso de Herrera (1470-1539) mentioned in the work "Obra de Agricultura". According to success in 201 DNA analysis is from a presumably natural cross between Rojal Tinta x Heptakilo ( Axina de Tres Bias ) were created (but this is based on only 20 DNA markers; see under molecular Genetics ). A crossing Planta Nova x To lift (Gibi) gave the variety alarije,
The late-ripening vine (as indicated by the synonym Tardana) has particularly thick-skinned berries. It produces fresh white wines with peach and lemon aromas. It is also called table grape used. The variety in Spain is mainly 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 it occupies in the areas 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 shown (cym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012