Corylus avellana L. Common hazel · Fruit crops
also searched as: истарски дугулйасти
10 August 2026
The variety is the result of folk selection, traditionally cultivated in the Istria region. The fruits are distinguished by their large size and characteristic elongated shape.
The variety is characterized as high-yielding and disease-resistant. With intensive cultivation methods, full fruiting begins by the fifth year of life.
The plant is self-fertile; however, to increase the reliability and volume of the harvest, it is recommended to plant additional pollinator varieties, which should make up about 5% of the total number of trees.
3 jurisdictions
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.
breeder code Istrska dolgoplodna leska
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ COA007
№ 19543010
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Records are sourced from official registry publications. Data sources and legal status
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Same species
Corylus avellana L. · Common hazel
WEISSMANN (FR)
Corylus avellana L. · Common hazel
Piemonte ASPROCOR S.C.C.A.P.A.
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Nearby in the species list Hvid Lambert, Imperactive Eugenie, Impératrice Eugénie, IMPERIAL_DE_TRABIZONDE, Imperial de Trebizonde, Imperiale de Trapezunt, Impériale de Trebizonde, IMPERIALE DI TREBISONDA, Impertale de Trebizonde, Isajevskij, ISTARSKI_OKRUGLI, Istrianer, Istrische Runde, Istrska debeloplodna, Istrska dolgoplodna leska, Istrska okrogla, Istrska okrogloplodna leska, Ivantejevskij Krasnyj, Iwess Long Seedling, JEAN'S