Trousseau gris G
Name of vine variety in France
Trousseau gris
Origin
This variety corresponds to the gray mutation of Trousseau N.
Synonymy
In France, this variety can officially be called "Chauché gris G" for plant propagating material.
Regulations
In France, Trousseau gris is officially listed in the "Catalogue of vine varieties", since September 2011.
Use
Wine grape variety.
Evolution of area under vines in France
2016
ha 3.2
Description
The description corresponds to Trousseau N, except for the skin color when ripe is, in that case, gray.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 141 236 239 172 188 246 248 233 239
Allel 2 149 236 257 186 188 248 254 247 255
Phenology
Bud burst: 1 days after Chasselas.
Grape maturity: period I, 1 and 1/2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Trousseau gris G is vigorous and must be planted in well exposed terroirs. Short or long pruning are suitable depending on climatic conditions. Care needs to be taken to ensure aerating the center of the vine trunks to create a microclimate favorable for the grape clusters.
Sensitivity to diseases and pests
Trousseau gris G is fairly susceptible to diseases, particularly to grey rot. It can also display susceptibility to mites and wasp attacks.
Technological potential
Grape clusters are small and the berries are moderate size. Trousseau gris G can produce characteristic, aromatic and full-bodied wines. This grape variety has high sugar accumulation potential making it able to produce mistelle type liqueur wines.
Clonal selection in France
There are no existing approved clones for this vine variety at the present time.
Bibliographic references
Description of clones approved in France
Identity and availability Agronomic data Technical data
Clone number Origin Selection Fertility Production level Sugar content Potential color
Year approved Agronomic references Weight of grape clusters Vigor Total acidity Tannic structure
Growing surface area Size of berries Sensitivity to Botrytis Aromatic intensity Oenological aptitudes
1259  Charente  CVC - IFV        
 2017