Cot N
Name of the variety in France
Cot
Origin
This variety is originally from the south west of France. Based on genetic analysis carried out in Montpellier, it would be the result of the crossbreeding between Magdeleine noire des Charentes and Prunelard.
Synonyms
In France, this variety can officially be called "Malbec" regarding plant propogating material. In the European Union, Cot is officially called by other names: Malbec (Spain, Czech Republic), Malbech (Italy) and Malbek (Austria).
Legal information
In France, Cot is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogues of other Member States of the European Union: Austria, Bulgaria, Czech Republic, Italy and Spain.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1968 1979 1988 2000 2008 2018
ha 10752 9765 4801 5279 6166 6676 7625
Descriptive elements
The identification is based on:
- the tip of the young shoot, with a high density of prostate hairs,
- the green young leaves with bronze spots,
- the adult leaves, entire or with three lobes, with a U or V-shaped open petiole sinus, small teeth, long compared to their width at the base with straight sides, a revolute leaf blade, undulate between the veins near the petiole sinus, and on the lower side of the leaves, a low to medium density of prostate hairs,
- the round-shaped berries
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 225 239 186 188 246 238 233 239
Allel 2 149 236 262 188 202 260 248 267 251
Phenology
Bud burst: 4 days after Chasselas.
Grape maturity: mid-season, 2 weeks and a half after Chasselas
Suitability for cultivation and agronomic production
This vigorous variety is sensitive to coulure, but clonal selection has greatly reduced this defect. Plant vigor should be managed by high density plantations and by using low-productive rootstock. This variety is fairly sensitive to winter frosts during the first years after plantation. Following spring frosts, the shoots from secondary buds are not very fertile. At maturity, there is sometimes the risk of berry shedding.
Susceptibility to diseases and pests
Cot does not seem particularly sensitive to fungal diseases except perhaps to phomopsis. It is also senstive to vine leafhoppers.
Technological potentiality
The bunches and berries are medium in size. With a well-managed production, this early variety can produce quite colored, aromatic and tannic wines with good ageing capacity. Rosé wine-making also gives good results. Generally speaking, sufficient maturity of grapes must be reached to avoid herbaceous and vegetal aromas of Cot to be too present, which can sometimes be hard and bitter.
Clonal selection in France
The eighteen certified Cot clones carry the numbers 42, 46, 180, 279, 353, 419, 592, 593, 594, 595, 596, 597, 598, 1061, 1127, 1128, 1288 and 1289. Two conservatories of approximately 220 clones were planted in the French department of Lot in 1993 and in 2003. An other conservatory of thirty or so clones was planted in the French department of Gironde between 2011 and 2012.
Bibliographic references
- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi, France.
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.
- Traité général de viticulture, Ampélographie. P. Viala and V. Vermorel, 1901-1909, Ed. Masson, Paris, France.
Description of clones certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
42 Lot ENTAV 1971 Sud-Ouest 0.54 ha medium medium medium medium representative wines of the variety clone sometimes a little irregular
46 Lot ENTAV 1971 Sud-Ouest 0.96 ha high medium to high medium medium to high representative wines of the variety
180 Gironde ENTAV 1973 Bordelais
Sud-Ouest
1.59 ha low low to medium medium medium medium medium medium representative wines of the variety clone appreciated for its agronomic characteristics
279 Gironde ENTAV 1973 Gironde Clone not widely distributed.
353 Gironde ENTAV 1975 Gironde Clone not widely distributed.
419 Gironde ENTAV 1976 Gironde Clone not widely distributed.
592 Gironde INRA 1978 Clone not widely distributed.
593 Gironde INRA 1978 Clone not widely distributed.
594 Lot ENTAV 1978 Sud-Ouest 2.38 ha medium medium medium medium to high medium to high medium representative wines of the variety clone appreciated for its agronomic characteristics and the quality of the wines obtained
595 Lot ENTAV 1978 Sud-Ouest 4.29 ha medium medium medium medium to high medium to high medium to high typical, fine and harmonious wines clone appreciated for its agronomic characteristics and the quality of the wines obtained
596 Lot ENTAV 1978 Sud-Ouest 3.19 ha medium medium medium medium to high medium to high medium representative wines of the variety clone appreciated for its agronomic characteristics and the quality of the wines obtained
597 Gironde INRA 1978 Clone not widely distributed.
598 Lot ENTAV 1978 Sud-Ouest 4.66 ha medium medium medium medium to high medium to high medium representative wines of the variety clone appreciated for its agronomic characteristics and the quality of the wines obtained
1061 Gironde CA 33 - ENTAV 2001 Bordelais medium low to medium low medium to high medium to high medium medium structured wines clone appreciated for its agronomic characteristics and the quality of the wines obtained En savoir plus
1127 Lot CA 46 - IFV 2009 Sud-Ouest medium low to medium low medium high high medium high high supple, fruity, balanced and colored wines Moderate level of production and wines appreciated for their organoleptic characteristics.
1128 Lot CA 46 - IFV 2009 Sud-Ouest low low low medium high high low to medium high high typical, structured and colored wines that last in the mouth Moderate level of production and wines appreciated for their organoleptic characteristics.
1288 Argentine Pépinières Mercier - IFV 2018
1289 Gironde Pépinières Mercier - IFV 2018