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Wepster

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Corylus avellana L. Common hazel · Fruit crops · bred by Shawn A. Mehlenbacher, David C. Smith, Rebecca L. McCluskey

also searched as: вепстер

Variety description

10 August 2026

Trees of the Wepster variety are characterized by vigorous growth and have a rounded, moderately upright crown shape, suitable for mechanical harvesting. The variety is early, with fruit ripening occurring 7–14 days earlier than the Barcelona variety.

The plant possesses complete resistance to eastern filbert blight (Anisogramma anomala) and high resistance to big bud mite. The variety is self-sterile and requires the planting of pollinators with a matching flowering period.

The fruits are small and round. The kernel is of high quality with a low percentage of defects, is easily blanched, and has a kernel percentage of 44–46%. The variety is intended for the confectionery and chocolate industry.

Sources8
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Countries of admission

2 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.

QZ

active no record

Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

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

Parties

Applicant
Oregon State University 82 Submitted the application to the register
Rights holder
University / State of Oregon acting by and through the State Board of Higher Edu on behalf of Oregon State Holds the rights to the variety

Admission to trade

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

  • UA Ukraine Active

    № 18286008

    Application
    20 December 2018
    Registration
    26 May 2022

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

United States of America № 13998648_2
Active
  1. Application filed 19 November 2013
  2. Registered 13 September 2016
  3. Currently active indefinite in the register

More 5 records protections in other jurisdictions are shown on the map above.

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

Same species

Other varieties: Common hazel

All 431 varieties of species

Corylus avellana L. · Common hazel

Piemonte ASPROCOR S.C.C.A.P.A.

SI UA
7 records

Nearby in the species list Webba, Webba Cenny, Webba KON, Webbova, Webbs Preisnuss, Webbs Price Cob, Webbs price cobb, Weiße Lambertsnuss, Weißhäutige Lambertsnuss, Weißmanns Zellernuss, Witpit Lambertsnoot, Wunder aus Bollweiler, WUNDER AUS BOLLWILLER, Wunder von Bollweiler, Yamhill, Yantarnyi, York, Zell din Guben, Zellernød, ZHADANYI

Discussion: Wepster

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