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De couston

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Vitis vinifera L. Common grape vine · Fruit crops · bred by FONTAINE-TRANCHANT Maurice (FR)

also searched as: де коустон

Variety description

10 August 2026

The variety is a natural seedling discovered in the Ardèche department in the early 1970s. Genetic analysis confirmed its origin from an intraspecific cross between Grenache and Aubun.

The plant is characterized by vigorous growth and a tendency to form suckers. Clusters are medium-sized and conical in shape; berries are black-blue with medium to low yield. The variety has low susceptibility to powdery mildew and gray mold, but is sensitive to esca and has poor drought tolerance.

Wine grape variety requiring short pruning and the use of a trellis. The variety is included in the official French catalog but has very limited distribution.

Sources2
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Countries of admission

1 jurisdiction

Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.

active no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder
FONTAINE-TRANCHANT Maurice (FR) 2 Developed the variety
Applicant
FONTAINE-TRANCHANT Maurice (FR) 2 Submitted the application to the register
Maintainer
Institut Francais de la Vigne et du Vin (FR) 580 Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

  • FR France Active

    № 1028391

    Application
    20 October 2008
    Registration
    1 January 2010

Records are sourced from official registry publications. Data sources and legal status

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

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Nearby in the species list Danam, Danery, Danlas, Danubius, Danuta, Darius, Datal, Dattier de Beyrouth, Daunia N, Dawn Seedless, Deckrot, Defensor, Delhro, DERECHERO, Dertum B, Devín, Diamant, Diamante, DIANA, Dievcie hrozno

Discussion: De couston

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