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Exp258

Active

Zea mays L. Maize · Agricultural · bred by Monsatno Technology LLC (USA)

also searched as: експ258

Variety description

10 August 2026

Exp258 is a traditional non-GMO hybrid that is genetically close to certain genetically modified lines, such as SmartStax. It is used exclusively in agrobiological research as an isoline for studying the effects of insecticidal proteins on organisms and ecosystems.

This material does not have a description of agronomic characteristics, such as maturity group, height, or disease resistance, as it is not intended for commercial cultivation. In variety registers, it is listed as official test material for comparison with commercial hybrids.

Sources4
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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.

QM

application terminated no record

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

Parties

Breeder
Monsatno Technology LLC (USA) 2 Developed the variety
Applicant
MONSANTO TECHNOLOGY LLC. 9 024 Submitted the application to the register
Maintainer
Monsanto Company 2 758 Responsible for variety maintenance

Admission to trade

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

  • IT Italy Terminated

    № 008603_A 008603

    Application
    15 December 2001
    Registration
    18 December 2003
    Terminated
    19 February 2015
  • BG Bulgaria Application submitted

    № 1721/31

    Application
    24 February 2006

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

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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

EXP244

Terminated

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

EXP253

Terminated

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

EXP258B

Withdrawn

Zea mays L. · Maize

MONSANTO TECHNOLOGY

IT
1 record

Nearby in the species list Exp 285, EXP151, EXP151HLBZ, EXP162, EXP163B, EXP163C, EXP165, EXP20-05, EXP244, EXP253, EXP258B, EXP260, EXP261A, EXP262SQGZ, EXP3-514, EXP656, EXP730, EXP740HLBZ, EXP99-112, EXP99-13

Discussion: Exp258

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