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Kneja 509

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Zea mays L. Maize · Agricultural · bred by P. Hristova, K. Hristov, S. Zaneva, Ts. Takova

also searched as: кнейа 509

Variety description

10 August 2026

The hybrid belongs to the FAO 500 maturity group and is intended for cultivation as a grain crop. In scientific literature, it is characterized as a mutant hybrid obtained through the application of mutation breeding methods.

During studies, the hybrid was used as a standard for evaluating drought tolerance and response to excessive manganese content in the environment. Analyses of nitrogen, crude protein, and biomass content in the produce were also conducted, and the degree of seedling infection by fungal diseases was studied under laboratory conditions.

Sources8
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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.

QM

active no record

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

Parties

Breeder
P. Hristova, K. Hristov, S. Zaneva, Ts. Takova 2 Developed the variety
Applicant
Maize Research Institute - Kneja (BG) 333 Submitted the application to the register
Rights holder
Maize Research Institute - Kneja (BG) 333 Holds the rights to the variety
Maintainer
Institute of Corn 20 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

    № 3141/308

    Application
    28 April 2000
    Registration
    28 April 2000

Plant breeders' rights

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

Bulgaria № 95289
Terminated
  1. Application filed 9 October 1991
  2. Registered 28 April 2000
  3. Entry closed 28 April 2025

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

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Nearby in the species list Kneja 485, Kneja 486, Kneja 487, Kneja 488, Kneja 489, Kneja 490, Kneja 491, Kneja 492, Kneja 493, Kneja 494, Kneja 511, Kneja 511A, Kneja 512, Kneja 515, Kneja 517, Kneja 530, Kneja 545, Kneja 546, Kneja 547, Kneja 548

Discussion: Kneja 509

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