Touriga Nacional is a variety of red

wine grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ...

, considered by many to be

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

's finest. Despite the low yields from its small grapes, it plays a big part in the blends used for

ports A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as H ...

, and is increasingly being used for table

wine Wine is an alcoholic drink typically made from fermented grapes. Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide, releasing heat in the process. Different varieties of grapes and strains of yeasts are m ...

in the

Douro The Douro (, , ; es, Duero ; la, Durius) is the highest-flow river of the Iberian Peninsula. It rises near Duruelo de la Sierra in Soria Province, central Spain, meanders south briefly then flows generally west through the north-west part o ...

and Dão. Touriga Nacional provides structure and body to wine, with high tannins and concentrated flavors of black fruit. Jancis Robinson has compared its relationship with Touriga Francesa to the partnership between Cabernet Sauvignon and Cabernet Franc, the former providing structure, the latter filling out the bouquet.J. Robinson ''Vines, Grapes & Wines'' pg 216 Mitchell Beazley 1986

Viticulture

The vine is very vigorous, and good results depend on keeping it in check. In the Douro it is grown in searing heat in steep

schist Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes ...

y vineyards that are more rock than soil. The alternative name of Mortágua pays tribute to these harsh conditions. It is usually trained under one of the Guyot systems, and needs severe pruning to keep it under control. In contrast, the vine produces just a few bunches of blue-black grapes which vary in size from 'small' to 'tiny'. Thus yields are among the lowest of any commercial grape variety. In recent years, scientists have been working on

cloning Cloning is the process of producing individual organisms with identical or virtually identical DNA, either by natural or artificial means. In nature, some organisms produce clones through asexual reproduction. In the field of biotechnology, c ...

the Touriga Nacional to produce vines that are able to

pollinate Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind. Pollinating agents can be animals such as insects, birds, a ...

better with the goal of increasing yields by 15% and sugar content by 10%.T. Stevenson ''"The Sotheby's Wine Encyclopedia"'' pg 335 Dorling Kindersley 2005

Wine regions

In the late 1990s there were 2,760 hectares of Touriga Nacional in Portugal. Its poor yields mean that it represents a tiny part of the wine production in the Douro, but it plays a major part in the blends of the best

port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as H ...

s. Traditionally a lot of US wine was fortified, and many of the producers of such 'port' have experimented with using Portuguese grapes as a way to improve their product. 553 tons of Touriga were crushed in 2006, up 26% on the previous year.Great article on the new Californian 'ports'

Wines

The tiny berries of Touriga Nacional have a high skin to pulp ratio which heightens the amount of extract in the wines. The grapes can produce intense, very aromatic wines with high

tannin Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' (from Anglo-Norman ''tanner'' ...

content.

Synonyms

Bical Tinto, Mortágua, Mortágua Preto, Preto Mortágua, Touriga, Touriga Fina, Tourigao, Tourigo Antigo, Tourigo do Dão, and Turiga.

References

External links