PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Piquemal, Georges
also searched as: 2603
10 August 2026
Line 2603 is an object of scientific research and breeding programs, in particular the work of INRAE. It is classified as a maintainer line of PET1 cytoplasmic male sterility and is used in genetic mapping and the study of physiological mechanisms.
In scientific practice, the line is used as a susceptible control in the study of resistance to broomrape (Orobanche cumana), as well as a model for studying mechanisms of carbon transfer in the host-parasite system and adaptation to low temperatures.
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 2603
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 2 records protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
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
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Nearby in the species list 25UT0012A, 25UT0014A, 25UU0098A, 25UU1022R, 25UU1022SUR, 25UU1427A, 25UU9911A, 25YS0455R, 25YS9553IMR, 26, 2603x1093, 2607, 2607 A, 2607 A PGF14, 2607/A x PGF300, 2613 R, 26MM0116SUA, 26MM0167A, 26MM0167R, 26MM1093ORSUA