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Vitis L. Grapevine · Fruit crops

also searched as: тврдак

Variety description

10 August 2026

The variety is considered indigenous to the Imotski region in Dalmatia, Croatia. It is an industrial variety used for the production of white wines characterized by an intense yellow hue, mild aroma, low acidity, and moderate minerality. The wines are not intended for long-term storage and are recommended for consumption while young.

The variety belongs to the late-maturing group, ripening at the end of September. It is distinguished by high yield, which requires vine load control to obtain quality raw material. It possesses moderate resistance to grape diseases and requires crown formation and regular care, like most varieties of the species Vitis vinifera.

Sources7
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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.

QZ

no record

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

Parties

Maintainer
HR 1 190 Responsible for variety maintenance

Admission to trade

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

  • QZ European Union Active

    № Kujundžuša*HR 1

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

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Same species

Other varieties: Grapevine

All 4 075 varieties of species

RS-9

Active

Vitis L. · Grapevine

UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER

9 records

RS-3

Active

Vitis L. · Grapevine

UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER

9 records

Nearby in the species list Tsymlianskyi chornyi, Tsytronnyi Maharacha, Turán, Turán E.723, Turbiana, Turca Bianca, Turca N., Turchesca, Turchetta N., Turruntes, Ucelut B., Ugni Blanc, Ugni Blanc *, Ugni blanc B, Ulrika, Unirea, Urbanitraube, Urbanka, Uva Bianca, Uva Cão B

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