Skip to content

PHK 42

Active

Zea mays L. Maize · Agricultural · bred by Seifert, Robert P.

also searched as: фк 42

Variety description

10 August 2026

PHK 42 is a specialized genetic material used by breeders in scientific activities. The line is used as one of the parental components or as a tester for creating experimental hybrids and evaluating combining ability.

As an inbred line, PHK 42 does not possess the set of characteristics of a commercial variety, such as target yield indicators or morphological parameters typical for commercial hybrids. The study of this line is focused on analyzing the manifestation of traits in hybrids derived from it.

Sources3
  • Loading…

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.

QM

terminated no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

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.

  • PHK 42 primary HU
  • PHK42 QM, US

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
Seifert, Robert P. 27 Developed the variety
Applicant
Pioneer Hi-Bred International, Inc. 46 Submitted the application to the register
Rights holder
Pioneer Hi-Bred International, Inc. 46 Holds the rights to the variety
Maintainer
Pioneer Hi-Bred International Inc. 46 Responsible for variety maintenance

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 № 8800035
Protection expired
  1. Application filed 15 December 1987
  2. Registered 29 July 1988
  3. Entry closed 29 July 2006

More 1 record protections in other jurisdictions are shown on the map above.

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: Maize

All 37 291 varieties of species

P 9578

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

AT BG HU RO SI SK +1
15 records

P 9074

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT BG DE RO SI SK +1
19 records

Zea mays L. · Maize

PIONEER| Pioneer Hi-Bred Services GmbH

AT BE DE LT SI SK
13 records

PHK 05

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

DE DK
6 records

PHK 29

Protection expired

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

HU
2 records

PHK 74

Active

Zea mays L. · Maize

Seifert, Robert P.

DE HU
5 records

Nearby in the species list Phj50, PHJ8C, PHJ8R, PHJBB, Phjc0, PHJEH1, PHJEK1, PHJR-5, PHK 05, PHK 29, PHK 74, PHK 75, PHK 76, Phk29wx, Phk56wx, PHK5V, PHK75 x PHR 47, Phk76wx, PHKM 5, Phkv1

Discussion: PHK 42

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