Merlot blanc () is a white

French wine French wine is produced throughout all of France in quantities between 50 and 60 million hectolitres per year, or 7–8 billion bottles. France is one of the largest wine producers in the world. French wine traces its history to th ...

grape variety This list of grape varieties includes cultivated grapes, whether used for wine, or eating as a table grape, fresh or dried (raisin, Zante currant, currant, sultana (grape), sultana). For a complete list of all grape species, including those unimp ...

that came from a natural crossing of the

Bordeaux wine Bordeaux wine (; ) is produced in the Bordeaux region of southwest France, around the city of Bordeaux, on the Garonne River. To the north of the city, the Dordogne River joins the Garonne forming the broad estuary called the Gironde; the Gi ...

grape

Merlot Merlot ( ) is a dark-blue-colored wine grape variety that is used as both a blending grape and for varietal wines. The name ''Merlot'' is thought to be a diminutive of , the French name for the blackbird, probably a reference to the color ...

and the

Cognac Cognac ( , also , ) is a variety of brandy named after the Communes of France, commune of Cognac, France. It is produced in the surrounding wine-growing region in the Departments of France, departments of Charente and Charente-Maritime. Cogn ...

grape

Folle blanche Folle blanche (), also known as Picpoule, Gros Plant, and Enrageat blanc, is a wine grape variety from southwest France. It was the traditional grape variety in Cognac and Armagnac production until the 20th century. Folle blanche is an offsprin ...

. The grape is distinct from ''Merlot gris'' which is a pink-skinned

color mutation The propagation of grapevines is an important consideration in commercial viticulture and winemaking. Grapevines, most of which belong to the ''Vitis vinifera ''Vitis vinifera'', the common grape vine, is a species of flowering plant, native t ...

of the red wine grape Merlot and is sometimes used in ''

vin gris Vin gris () is a variant of rosé wine made from red grapes, in particular Pinot noir and Pinot gris. Pinot noir is a black grape, but can also be used to make rosé or white wine. When the grapes are brought to the winery and crushed, the juice ...

'' and

rosé A rosé () is a type of wine that incorporates some of the wine color, color from the grape skins, but not enough to qualify it as a red wine. It may be the oldest known type of wine, as it is the most straightforward to make with the Macerati ...

wines. Plantings of Merlot blanc were first discovered in 1891 but cuttings of the vine have not been widely propagated and the variety is very rare. It is not used to make the

sweet Sweetness is a basic taste most commonly perceived when eating foods rich in sugars. Sweet tastes are generally regarded as pleasurable. In addition to sugars like sucrose, many other chemical compounds are sweet, including aldehydes, ketones, ...

White Zinfandel White Zinfandel is a type of rosé wine made from red Zinfandel grapes that falls between the categories of off-dry and sweet. As it is not made from white grapes, it has a blush color, derived from grapes which are typically used to produce a f ...

-style wine ''White Merlot'' that is made by some

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. ...

producers. Those wines are made from a '' saignee'' of red Merlot wine.

Relationship to other grapes

When Merlot blanc was first discovered, it was thought that the vine was a white-berried color mutation of Merlot in a similar relation to how

Grenache blanc Grenache blanc (; also known as garnatxa blanca in Catalonia) is a variety of white wine grape that is related to the red grape Grenache. It is mostly found in Rhône wine blends and in northeast Spain. Its wines are characterized by high alcohol ...

is a color mutation of

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 ...

and

Pinot blanc Pinot blanc () or Pinot bianco is a white wine grape. It is a point genetic mutation of Pinot noir. Pinot noir is genetically unstable and will occasionally experience a point mutation in which a vine bears all black fruit except for one cane wh ...

is a mutation of

Pinot noir Pinot noir (), also known as Pinot nero, is a red-wine grape variety of the species ''Vitis vinifera''. The name also refers to wines created predominantly from Pinot noir grapes. The name is derived from the French language, French words fo ...

. However,

DNA analysis Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or ...

conducted by the

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

and noted

ampelographers Ampelography ( ἄμπελος, "vine" + γράφος, "writing") is the field of botany concerned with the identification and classification of grapevines, ''Vitis'' spp. Traditionally this has been done by comparing the shape and colour of th ...

such as

Carole Meredith Carole P. Meredith is an American grape geneticist and was a professor at the UC Davis Department of Viticulture and Enology, Department of Viticulture and Enology of University of California, Davis. Career Before she retired in 2003, Meredith ...

confirmed that Merlot blanc was distinct from Merlot (itself the result of a crossing of the Bordeaux grape

Cabernet Franc Cabernet Franc is one of the major black grape varieties worldwide. It is principally grown for blending with Cabernet Sauvignon and Merlot in the Bordeaux (wine), Bordeaux style, but can also be vinified alone, as in the Loire (wine), Loire's C ...

and the

Brittany Brittany ( ) is a peninsula, historical country and cultural area in the north-west of modern France, covering the western part of what was known as Armorica in Roman Gaul. It became an Kingdom of Brittany, independent kingdom and then a Duch ...

Charente Charente (; Saintongese: ''Chérente''; ) is a department in the administrative region of Nouvelle-Aquitaine, southwestern France. It is named after the river Charente, the most important and longest river in the department, and also the r ...

grape Magdeleine Noire des Charentes) but rather was an offspring of Merlot. Inheritance analysis of 55

genetic marker A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species. It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that can ...

s spread out over 9 chromosomes, showed that Merlot blanc was the result of a crossing of Merlot with the Cognac/

Armagnac Armagnac (, ) is a distinctive kind of brandy produced in the Armagnac (region), Armagnac region in Gascony, southwest France. It is distilled from wine usually made from a blend of grapes including Baco 22A, Colombard, Folle blanche and Ugni ...

grape Folle blanche. Merlot Equinox

Wine regions

Even though plantings of Merlot blanc are scarce, the grape is still a permitted a variety in the ''

Appellation d'origine contrôlée In France, the ''appellation d'origine contrôlée'' (, ; abbr. AOC ) is a label that identifies an agricultural product whose stages of production and processing are carried out in a defined geographical area – the ''terroir'' – and using ...

'' (AOC) wines of several

Bordeaux wine regions The wine regions of Bordeaux in France are a large number of wine growing areas, differing widely in size and sometimes overlapping, which lie within the overarching wine region of Bordeaux, centred on the city of Bordeaux and covering the whole ...

including the general AOC Bordeaux (but not for wines labeled Bordeaux Supérieur). Here Merlot blanc can be used in up to 30% of the blend along with Semillon (which must make up at least 70% of the blend itself),

Sauvignon blanc Sauvignon blanc () is a green-skinned grape variety that originates from the city of Bordeaux in France. The grape most likely gets its name from the French words ''sauvage'' ("wild") and ''blanc'' ("white") due to its early origins as an ind ...

Muscadelle Muscadelle () is a white wine grape variety. It has a simple aroma of grape juice and raisins like grapes of the Muscat family of grapes, but it is unrelated. DNA analysis has indicated that Muscadelle is a cross between Gouais blanc and an un ...

Colombard Colombard (also known as French Colombard in North America) is a white French wine grape variety that may be the offspring of Chenin blanc and Gouais blanc. This makes the grape the sibling of the Armagnac Meslier-Saint-François and the nearl ...

, Mauzac,

Ondenc Ondenc is a white French wine grape found predominantly in the Gaillac region of southwest France. In the 19th century, it was a popular planting in Bordeaux but fell out of favor following the phylloxera epidemic due to poor yields and sensit ...

and

Ugni blanc Trebbiano is an Italian wine grape, one of the most widely planted grape varieties in the world. It gives good yields, but tends to yield undistinguished wine. It can be fresh and fruity, but does not keep long. Also known as ugni blanc, it ...

. Merlot blanc destined for AOC wine production are limited to

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 no greater than 55 hl/ha (approximately 3.7 tons/acre with the finished wines needing to attain a minimum

alcohol level Alcohol by volume (abbreviated as alc/vol or ABV) is a common measure of the amount of alcohol contained in a given alcoholic beverage. It is defined as the volume the ethanol in the liquid would take if separated from the rest of the solution, ...

of at least 11%. Other Bordeaux AOCs that permit the usage of Merlot blanc in their designated white wines include Bordeaux-Haut-Benauge (maximum harvest yield of 50 hl/ha), Côtes de Bourg (but not the Côtes de Blaye) and Entre-Deux-Mers (which like the Côtes de Bourg limits harvest yield to 60 hl/ha). In all these AOCs Merlot blanc plays a supporting role to Semillon, Sauvignon blanc and Muscadelle.

Synonyms

Over the years Merlot blanc has been known under a variety of synonyms including: Merlau blanc, Merlaut blanc and Merlot bianco.

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 ...

(VIVC)
Merlot blanc
'' Accessed: April 18th, 2013

References

{{Reflist White wine grape varieties