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PR 56

Withdrawn

Helianthus annuus L. Sunflower · Agricultural · bred by INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

also searched as: пр 56

Variety description

10 August 2026

The PR-56/8 line was obtained as a result of crossing cultivated sunflower Helianthus annuus with the wild species Aster speciosa. This material is not a commercial variety or hybrid for mass production and is used exclusively in breeding programs.

The main purpose of the line is the development of new sunflower forms with high resistance to diseases, in particular to broomrape and downy mildew. Research shows 100% resistance of the line to the specified pathogens and an oil content in seeds at the level of 49.56%.

Sources4
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Countries of admission

1 jurisdiction

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.

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

Parties

Breeder
Institut National de la Recherche Agronomique (FR) 1 883 Developed the variety
Applicant
Agri Obtentions SA (FR) Submitted the application to the register
Rights holder
Agri Obtentions SA (FR) Holds the rights to the variety

Plant breeders' rights

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

France № 6634
Active
  1. Application filed 10 February 1987
  2. Registered
  3. Entry closed 3 March 1992

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

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Nearby in the species list Postolianskyi, Postup, Potter CLP, Potuzhnyi, POWERSUN, PP 01, PP 02, PP 03, PP 04, PP 05, PR 62 A 91, PR 63 A 86, PR 63 A 90, PR 63 G 40, PR 63 G 50, PR 63 K 83, PR 6338, PR 63A51, PR 64 A 15, PR 64 A 63

Discussion: PR 56

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