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Romsun 52

Terminated

Helianthus annuus L. Sunflower · Agricultural · bred by AC.CIENCIAS AGRICOLAS

also searched as: ромсун 52

Variety description

10 August 2026

The hybrid was created at the Research Institute for Cereals and Industrial Crops in Fundulea. Its appearance in the early 1970s marked the beginning of the hybrid sunflower era in global agriculture.

During trials in the late 1960s and early 1970s, the hybrid demonstrated a seed yield of over 3 t/ha and a high oil content. Distinguishing features of the variety included higher lodging resistance compared to other varieties and hybrids of that period.

Sources6
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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.

terminated no record

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

Parties

Breeder
AC.CIENCIAS AGRICOLAS 9 Developed the variety
Applicant
AC.CIENCIAS AGRICOLAS 9 Submitted the application to the register
Rights holder
AC.CIENCIAS AGRICOLAS 9 Holds the rights to the variety

Admission to trade

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

  • SK Slovak Republic Terminated

    № 1095

    Application
    15 October 1974
    Registration
    1 January 1977
    Terminated
    31 December 1989
  • ES Spain Terminated

    № 19820095

    Application
    1 February 1982
    Registration
    1 January 1984
    Terminated
    1 January 1984

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

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

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Nearby in the species list Rom, Romanella, Romans, Romantyk, ROMERO, Romil, Romina, Romsum HS 301, Romsum HS 52, Romsum HS 90, Romsun HS 90, Romy, Rona, Rondo, Ronsar, Roquette, RORf69, RORf69 SU, ROS1001, ROSALEN

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