Olmo grapes are

wine Wine is an alcoholic drink made from Fermentation in winemaking, fermented fruit. Yeast in winemaking, Yeast consumes the sugar in the fruit and converts it to ethanol and carbon dioxide, releasing heat in the process. Wine is most often made f ...

and table

grape varieties This list of grape varieties includes cultivated grapes, whether used for wine, or eating as a table grape, fresh or dried (raisin, currant, sultana). For a complete list of all grape species, including those unimportant to agriculture, see ''V ...

produced by

University of California, Davis The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University ...

viticulturist Dr. Harold Olmo. Over the course of his nearly 50-year career, Dr. Olmo bred a wide variety of both grapes by means of both crossing varieties from the same species or creating

hybrid grapes Hybrid grapes are grape varieties that are the product of a Hybrid (biology), crossing of two or more ''Vitis'' species. This is in contrast to crossings between grape varieties of the same species, typically ''Vitis vinifera'', the European grape ...

from

cultivars A cultivar is a kind of cultivated plant that people have selected for desired traits and which retains those traits when propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, tissue cult ...

of different ''

Vitis ''Vitis'' (grapevine) is a genus of 81 accepted species of vining plants in the flowering plant family Vitaceae. The genus consists of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, bot ...

'' species. Over 30 new grape varieties were created by Dr. Olmo and introduced to the

California wine California wine production has a rich viticulture history since 1680 when Spanish Jesuit missionaries planted ''Vitis vinifera'' vines native to the Mediterranean region in their established missions to produce wine for religious services. ...

and table grape industries.

Ruby Cabernet

Ruby Cabernet is the most notable and widely planted Olmo grape. It is a cross between the ''

Vitis vinifera ''Vitis vinifera'', the common grape vine, is a species of flowering plant, native to the Mediterranean Basin, Mediterranean region, Central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern ...

'' varieties

Cabernet Sauvignon Cabernet Sauvignon () is one of the world's most widely recognized red wine grape varieties. It is grown in nearly every major wine producing country among a diverse spectrum of climates from Australia and British Columbia, Canada to Lebano ...

and

Carignan Carignan (; also known as Mazuelo, Bovale Grande, Cariñena, Carinyena, Samsó, Carignane, and Carignano) is a red grape variety of Spanish origin that is more commonly found in French wine but is widely planted throughout the western Medite ...

that was first trialed by Dr. Olmo in 1936 before being released in 1948. The grape is primarily used in blending, adding color and tartness, but producers such as E & J Gallo Winery have produced varietal wines from the grape. According to wine expert

Jancis Robinson Jancis Mary Robinson OBE, ComMA, MW (born 22 April 1950) is a British wine critic, journalist and wine writer. She currently writes a weekly column for the ''Financial Times'', and writes for her website JancisRobinson.com, updated daily. She ...

, Ruby Cabernet can have some aromas reminiscent of a young

with the color of a Carignan but it lacks the structure and

body Body may refer to: In science * Physical body, an object in physics that represents a large amount, has mass or takes up space * Body (biology), the physical material of an organism * Body plan, the physical features shared by a group of anim ...

to produce premium wines.Robinson, Jancis ''Vines, Grapes & Wines'' Mitchell Beazley pgs 226-227, 264-265 1986 In California, the variety is widely planted in the Central Valley where it can withstand the hot

continental climate Continental climates often have a significant annual variation in temperature (warm to hot summers and cold winters). They tend to occur in central and eastern parts of the three northern-tier continents (North America, Europe, and Asia), typi ...

of the valley and still produce

harvest Harvesting is the process of collecting plants, animals, or fish (as well as fungi) as food, especially the process of gathering mature crops, and "the harvest" also refers to the collected crops. Reaping is the cutting of grain or pulses fo ...

yields of 6 to 9 tons an acre. Outside of the United States, the variety can also be found in

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...

Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...

and

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...

Rubired

Rubired is a hybrid of the ''vinifera'' variety Tinto Cão and Alicante Ganzin, which itself is a hybrid of '' Vitis rupestris'' Armon Rupestris Ganzin No. 4 and the ''vinifera'' crossing

Alicante Bouschet Alicante Bouschet or Alicante Henri Bouschet is a wine grape variety that has been widely cultivated since 1866. It is a cross of Petit Bouschet (itself a cross of the very old variety Teinturier du Cher and Aramon) and Grenache. Like Ruby Cabernet, it was bred to produce significant yields in hot climates, and in the California Central Valley it regularly yields 8 to 10 tons per acre. However, Rubired is a ''

teinturier Teinturier grapes () are grapes whose flesh and juice are red in colour due to anthocyanin pigments accumulating within the pulp of the grape berry itself. In non-teinturier red grapes, anthocyanin pigments are confined to the outer skin tissue ...

'' variety with pigmented, instead of clear, juice. Most red wine grapes have clear juice, the red color of wines coming from extraction of pigment from the grape skins. Rubired was originally intended for producing

fortified A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Lat ...

port-style wines, and since the late 20th century, producers in Australia have included it in some port-style blends. Its intensely dark color is often useful in blending to intensify the color of other red wines, but it can also be used to create

varietal A varietal wine is a wine made primarily from a single named grape variety, and which typically displays the name of that variety on the wine label.The American Heritage Dictionary of the English Language, Fourth Edition, 2000.winepros.com.au. ...

wines.

Emerald Riesling

Emerald Riesling is a white wine grape crossing between the ''vinifera'' varieties

Riesling Riesling ( , ) is a white grape variety that originated in the Rhine region. Riesling is an aromatic grape variety displaying flowery, almost perfumed, aromas as well as high acidity. It is used to make dry, semi-sweet, sweet, and sparkling ...

and Muscadelle. Trials on the variety began in 1936 and the variety was released in 1948 at the same time as Ruby Cabernet. Unlike many of the cool-climate Riesling crossings produced in

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

at facilities like Geisenheim Grape Breeding Institute, the Emerald Riesling was bred for warm climates like the

San Joaquin Valley The San Joaquin Valley ( ; Spanish language in California, Spanish: ''Valle de San Joaquín'') is the southern half of California's Central Valley (California), Central Valley. Famed as a major breadbasket, the San Joaquin Valley is an importa ...

of California where today more than half of all Emerald Riesling plantings are found. Outside of California, there are limited plantings in South Africa. It is also used quite extensively in Israel, where big wineries use it to produce light, and aromatic - usually off-dry - wines. It comprises roughly 2.6% of the total grape production in Israel, totaling (in 2012) 1,408 tons.
Israel Wine Board, 2012 According to wine expert Jancis Robinson, Emerald Riesling produces an aromatic, high acid (wine), acid wine that does not quite have the flavor definition more commonly associated with Riesling or its cool climate crossings. In cooler climate areas where it has been planted, such as the Monterey AVA, it can share some traits with Riesling but with a distinctly fuller body. Emerald Riesling is also known under the synonyms California 1139 E 29, Emerald Rizling, and Riesling Izumrudnii.Emerald Riesling

Vitis International Variety Catalogue The Vitis International Variety Catalogue (VIVC) is a database of various species and varieties/cultivars of grapevine, the genus ''Vitis''. VIVC is administered by the Geilweilerhof Institute for Grape Breeding (''Institut für Rebenzüchtung G ...

, accessed 2010-07-15

Other wine grapes

*Carnelian is a crossing of the ''Vitis vinifera'' Carignan and a separate ''vinifera'' crossing between Cabernet Sauvignon and

Grenache Grenache (; ) or Garnacha () is one of the most widely planted red wine grape varieties in the world. Niels Lillelund: ''Rhône-Vinene'' p. 25, JP Bøger – JP/Politikens Forlagshus A/S, 2004. . It ripens late, so it needs hot, dry condi ...

. It was created in 1972 to combine the genetic traits that allow Carignan and Grenache to produce well in warm climates with some of flavor and wine characteristics of Cabernet Sauvignon. *Centurian (also known as Centurion) is a ''vinifera'' crossing between Carignan and a separate crossing of Cabernet Sauvignon and Grenache. The grape was developed by Dr Olmo in 1975 matching the same grape varieties used to produce the Carnelian grape a few years earlier. Today it is mostly planted in the Central Valley of California.J. Robinson ''Jancis Robinson's Guide to Wine Grapes'' pg 46 Oxford University Press 1996 *

Flora Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. The corresponding term for animals is ''fauna'', and for f ...

is a crossing of two ''vinifera'' varieties, Semillon and

Gewürztraminer Gewürztraminer () is an aromatic wine grape variety, used in white wines, and which performs best in cooler climates. In English, it is sometimes referred to colloquially as Gewürz ( ; although this is never the case in German, because mean ...

, that was created in 1938 by Dr. Olmo at the California Agricultural Experiment Station.J. Robinson ''Jancis Robinson's Wine Course'' Third Edition pg 109 Abbeville Press 2003 A separate red Flora hybrid exist but it is not related in any way to the Olmo Flora. *

Royalty Royalty may refer to: * the mystique/prestige bestowed upon monarchs ** one or more monarchs, such as kings, queens, emperors, empresses, princes, princesses, etc. *** royal family, the immediate family of a king or queen-regnant, and sometimes h ...

is a crossing of the ''Vitis vinifera'' Trousseau gris variety from the

Jura wine Jura wine is French wine produced in the Jura '' département''. Located between Burgundy and Switzerland, this cool climate wine region produces wines with some similarity to Burgundy and Swiss wine. Jura wines are distinctive and unusual wi ...

region of

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

and the teinturier grape Alicante Ganzin that, itself, is a hybrid of a '' Vitis rupestris'' variety and the ''Vitis vinifera'' grape Aramon.J. Robinson ''Vines Grapes & Wines'' pg 226 Mitchell Beazley 1986 The variety was first developed in 1938 but wasn't released for commercial use until 1958 when it was released with Rubired.J. Robinson ''Jancis Robinson's Guide to Wine Grapes'' pg 161 Oxford University Press 1996 *Symphony is a crossing of the ''vinifera'' varieties

Muscat of Alexandria Muscat of Alexandria is a white wine grape that is a member of the Muscat family of ''Vitis vinifera''. It is considered an "ancient vine", and wine experts believe it is one of the oldest genetically unmodified vines still in existence.J. Robi ...

and Grenache gris. that Dr. Olmo first began developing in 1948. It took over 30 years to complete crossing trials and produce a viable cultivar. Symphony was finally completed and introduced commercially in 1981 and

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...

ed in 1983. The grape makes a white wine with a slight spiciness with

tree fruit A fruit tree is a tree which bears fruit that is consumed or used by animals and humans. All trees that are flowering plants produce fruit, which are the ripened ovaries of flowers containing one or more seeds. In horticultural usage, the term ...

aromas of

citrus ''Citrus'' is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes. ''Citrus'' is nativ ...

apricot An apricot (, ) is a fruit, or the tree that bears the fruit, of several species in the genus ''Prunus''. Usually an apricot is from the species '' P. armeniaca'', but the fruits of the other species in ''Prunus'' sect. ''Armeniaca'' are also ...

and

peach The peach (''Prunus persica'') is a deciduous tree first domesticated and Agriculture, cultivated in China. It bears edible juicy fruits with various characteristics, most called peaches and the glossy-skinned, non-fuzzy varieties called necta ...

. It is primarily a blending grape but can be made into a

wine.

References

{{American wine Hybrid grape varieties

Ruby Cabernet

Rubired

Emerald Riesling

Other wine grapes

See also

References