Propagation of grapevinesThe propagation of grapevines is an important consideration in commercial viticulture and winemaking. Grapevines, most of which belong to the Vitis vinifera family, produce one crop of fruit each growing season with a limited life span for individual vines. While some centenarian old vine examples of grape varieties exist, most grapevines are between the ages of 10 and 30 years. As vineyard owners seek to replant their vines, a number of techniques are available which may include planting a new cutting that has been selected by either clonal or mass (massal) selection.
Wine of the United StatesWine has been produced in the United States since the 1500s, with the first widespread production beginning in New Mexico in 1628. Today, wine production is undertaken in all fifty states, with California producing 84 percent of all US wine. The North American continent is home to several native species of grape, including Vitis labrusca, Vitis riparia, Vitis rotundifolia, and Vitis vulpina, but the wine-making industry is based almost entirely on the cultivation of the European Vitis vinifera, which was introduced by European settlers.
South African wineSouth African wine has a history dating back to 1659 with the first bottle being produced in Cape Town by its founder and gouverner Jan van Riebeeck. Access to international markets led to new investment in the South African wine market. Production is concentrated around Cape Town and almost exclusively located within the Western Cape province, with major vineyard and production centres at Constantia, Paarl, Stellenbosch and Worcester.
Old World wineOld World wine refers primarily to wine made in Europe but can also include other regions of the Mediterranean basin with long histories of winemaking such as North Africa and the Near East. The phrase is often used in contrast to "New World wine" which refers primarily to wines from New World wine regions such as the United States, Australia, South America and South Africa. The term "Old World wine" does not refer to a homogeneous style with "Old World wine regions" like Austria, France, Georgia, Italy, Portugal, and Spain each making vastly different styles of wine even within their own borders.
Canopy (grape)In viticulture, the canopy of a grapevine includes the parts of the vine visible aboveground - the trunk, cordon, stems, leaves, flowers, and fruit. The canopy plays a key role in light energy capture via photosynthesis, water use as regulated by transpiration, and microclimate of ripening grapes. Canopy management is an important aspect of viticulture due to its effect on grape yields, quality, vigor, and the prevention of grape diseases. Various viticulture problems, such as uneven grape ripening, sunburn, and frost damage, can be addressed by skillful canopy management.
Irrigation in viticultureIrrigation in viticulture is the process of applying extra water in the cultivation of grapevines. It is considered both controversial and essential to wine production. In the physiology of the grapevine, the amount of available water affects photosynthesis and hence growth, as well as the development of grape berries. While climate and humidity play important roles, a typical grape vine needs 25-35 inches (635-890 millimeters) of water a year, occurring during the spring and summer months of the growing season, to avoid stress.
White wineWhite wine is a wine that is fermented without skin contact. The colour can be straw-yellow, yellow-green, or yellow-gold. It is produced by the alcoholic fermentation of the non-coloured pulp of grapes, which may have a skin of any colour. White wine has existed for at least 4,000 years. The wide variety of white wines comes from the large number of varieties, methods of winemaking, and ratios of residual sugar. White wine is mainly from "white" grapes, which are green or yellow in colour, such as the Chardonnay, Sauvignon blanc and Riesling.
Ripeness in viticultureIn viticulture, ripeness is the completion of the ripening process of wine grapes on the vine which signals the beginning of harvest. What exactly constitutes ripeness will vary depending on what style of wine is being produced (sparkling, still, fortified, rosé, dessert wine, etc.) and what the winemaker and viticulturist personally believe constitutes ripeness. Once the grapes are harvested, the physical and chemical components of the grape which will influence a wine's quality are essentially set so determining the optimal moment of ripeness for harvest may be considered the most crucial decision in winemaking.
Argentine wineArgentina is the fifth largest producer of wine in the world. Argentine wine, as with some aspects of Argentine cuisine, has its roots in Spain. During the Spanish colonization of the Americas, vine cuttings were brought to Santiago del Estero in 1557, and the cultivation of the grape and wine production stretched first to neighboring regions, and then to other parts of the country. Historically, Argentine winemakers were traditionally more interested in quantity than quality with the country consuming 90% of the wine it produces ( per capita according to 2006 figures).
ViticultureViticulture (from the Latin word for vine) or winegrowing (wine growing) is the cultivation and harvesting of grapes. It is a branch of the science of horticulture. While the native territory of Vitis vinifera, the common grape vine, ranges from Western Europe to the Persian shores of the Caspian Sea, the vine has demonstrated high levels of adaptability to new environments, hence viticulture can be found on every continent except Antarctica.