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WILLIAMS_ROJA

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Pyrus communis L. European pear · Fruit crops

also searched as: виллиамс ройа

Variety description

10 August 2026

The variety is a spontaneous bud mutation of the 'Williams' pear. Trees are weak to medium-growing with a pyramidal crown shape. The fruits have a mass of 150–200 g, sometimes up to 270 g, with a bumpy surface and delicate skin, which turns dark maroon upon ripening.

The flesh of the fruit is yellowish-white, juicy, and melting, possessing a distinct muscat flavor. The variety is self-infertile and requires pollinators. The fruits are characterized by firm attachment to the pedicel and are suitable for storage in a refrigerator until November.

Resistance to scab is estimated as medium to high; however, the tree is susceptible to infestation by aphids and pear psylla. The intensity of the red fruit coloration may decrease depending on growing conditions.

Sources4
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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

Also known as

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.

  • WILLIAMS_ROJA primary QZ
  • WILLIAMS ROJA ES, QZ

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.

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

Admission to trade

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

  • ES Spain Active

    № 11650049

    Application
    21 February 1996
    Registration
    26 February 2019

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: European pear

All 2 328 varieties of species

CH 201

Active

Pyrus communis L. · European pear

EST. PRODUCTIVO DE DANILO CHRISTEN

UA
14 records

Pyrus communis L. · European pear

Michael Bede & Wendy May King-Turner (NZ)

FR
12 records

TP 15 41

Active

Pyrus communis L. · European pear

YOSEF BEN DOR

7 records

Pyrus communis L. · European pear

Information not available - Contact NL authorities

NL
1 record

Nearby in the species list WILLIAM'S W 21, William Tardiva, Williams Christ, Williams Christ 4n, Williams Christ P 1469, Williams Christ P 1740, Williams Christ P 415, Williams Christbirne, Williams Duchess, Williams Duchesse, Williams rosu, Williams Rouge, Williamsova, Williamsova čáslavka, Williamsova červená, Williamsova purpurová, Windsor Pear, Windsorbirne, Windsorská, Winter Forellenbirne

Discussion: WILLIAMS_ROJA

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