Kneja 581

Active

Zea mays L. Maize · Agricultural · bred by Nataliya Petrovska

also searched as: кнейа 581

Variety description

10 August 2026

The maize hybrid Kneja 581 was developed at the Maize Research Institute in the city of Kneja. The plant belongs to the FAO 500–600 maturity group.

The variety possesses high productivity and resistance to adverse climatic conditions. Its designation for commercial use is confirmed by its inclusion in the Official Variety List.

Sources5

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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.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

active no record

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

Parties

Breeder: Nataliya Petrovska 3 Developed the variety
Applicant: Maize Research Institute - Kneja (BG) 333 Submitted the application to the register
Maintainer: Maize Research Institute - Kneja (BG) 333 Responsible for variety maintenance

Admission to trade

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

BG Bulgaria Active

№ 5523/1123.2022

Application

16 March 2022

Registration

29 February 2024

Registry	Number	Application	Registration	Terminated	Status
BG Bulgaria	5523/1123.2022	16 March 2022	29 February 2024	—	Active

Plant breeders' rights

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

Bulgaria № 1247 P1

Active

Application filed 29 January 2025
Registered 16 July 2025
Entry closed 16 July 2050

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

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Breeder

Nataliya Petrovska

breeder code Kneja 581

All 3 varieties of company

Registry records

Total records: 2
Jurisdictions shown: 2
First registration: 2024

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

PR 39 G 12

Active

Zea mays L. · Maize

PIONEER| Pioneer Hi-Bred Services GmbH

AT BE DE LT SI SK

13 records

Kneja 579

Withdrawn

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

1 record

Kneja 580

Application submitted

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

1 record

Kneja 582

Active

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

1 record

Nearby in the species list Kneja 571, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 572, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 573, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 574, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 575, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 576, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 577, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 578, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 579, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 580, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 582, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 583, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 584, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 585, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 586, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 587, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 588, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 590, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 594, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Kneja 595

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