Chatus N
Name of the variety in France
Chatus
Origin
This variety can be found in the south of the Massif Central, in the Alpes (Dauphiné, Savoie) and in northern Italy (Piedmont region).
Synonyms
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
Legal information
In France, Chatus is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogue of Italy.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1988 2000 2008 2018
ha 60 18 23 57 63
Descriptive elements
The identification is based on:
- the tip of the young shoot with a high density of prostate hairs,
- the young leaves with bronze spots,
- the pentagonal adult leaves, with three or five lobes, upper lateral sinuses with occasionally a tooth inside, a closed V-shaped petiole sinus with parallel or overlapping lobes, medium teeth with straight sides, a twisted, slightly revolute, blistered and goffered leaf blade, and on the lower side of the leaves, a low to medium density of erect and prostate hairs, 
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 176 188 252 238 216 239
Allel 2 135 225 249 191 194 252 240 235 271
Phenology
Bud burst: 5 days after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
Chatus is a fairly fertile variety with an erect bearing. It can be managed by short or long pruning. The vigor of this variety is such that it can be planted in fairly poor and dry soils. Chatus appears well adapted to acid soils.
Susceptibility to diseases and pests
Chatus is a little susceptible to downy and powdery mildew.
Technological potentiality
The bunches are medium to large in size and the berries are small. Chatus produces very colored, fairly acidic and above all very tannic wines.
Clonal selection in France
The two certified Chatus clones carry the numbers 1046 and 1285. A conservatory of 60 or so clones was planted in 2001 in the French department of Ardèche, following surveys carried out in the south of the Massif Central and in Italy.
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.
- Registro nazionale delle varieta di vite. Ministère de l’agriculture italien [web site, visited in 2020].
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
1046 Ardèche ENTAV 1998 Rhône-Alpes 0.25 ha low low medium medium
1285 Ardèche IFV 2018