Skip to content

R 502

Active

Zea mays L. subsp. mays (Popcorn Group) Popcorn · Agricultural · bred by CROOKHAM COMPANY

also searched as: р 502

Variety description

10 August 2026

The hybrid forms plants with dark green foliage and a sturdy stalk resistant to lodging. The variety possesses high resistance to Goss's wilt, gray leaf spot, common rust, and northern corn leaf blight.

Kernels are large, dark orange, and of the butterfly type. The expansion ratio is approximately 52 MWVT with an index of 60 kernels per 10 g. The flakes obtained after popping are characterized by high strength, which reduces their breakage during transport and processing.

Sources8
  • Loading…

Countries of admission

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.

QZ

active no record

Also known as

breeder code R502

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.

  • R 502 primary HU, QZ
  • R502 NL

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

Parties

Breeder
Crookham Company Inc. 88 Developed the variety
Applicant
Crookham Company Inc. 88 Submitted the application to the register
Maintainer
HU - CROOKHAM CO. 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

    № 289778

    Registration
    25 February 2022
  • NL Netherlands Active

    № MAS2380

    Application
    31 March 2019
    Registration
    17 December 2020
  • HU Hungary Active

    № 485649

    Application
    4 February 2020
    Registration
    31 March 2022

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

Found an error in the record?

The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.

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: Popcorn

All 204 varieties of species

AP 2504

Active

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

AG Alumni Seed, USA

HU
3 records

AP 4503

Protection expired

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

AG Alumni Seed, USA

HU
3 records

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

Bc Institut, HR

HR
4 records

R 409

Terminated

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

Crookham Company (US)

FR
3 records

R 427

Active

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

Crookham Company (US)

FR HU
3 records

R 997

Active

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

CROOKHAM COMPANY

NL
2 records

Nearby in the species list Poppy, Poppy MicroWave, Poppy Plus, PopSkom, R 265, R 283, R 291, R 292, R 409, R 427, R 997, R327, R400MR, R606, R96566, R97474, Robust 101 MR, Robust 90252, Robust 92204, Robust 92207

Discussion: R 502

0 messages

Growing experience and notes on the entry. Comments are not part of the reference data and are not verified against primary sources.

Comments are open to signed-in readers. Sign in · Sign up