PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Cvejic Sandra, Jocic Sinisa,
also searched as: бг н 4
10 August 2026
BG N 4 is an inbred line intended for obtaining hybrid progeny. In breeding work, it is often used as a sterile analogue in combinations with fertility restorers. The line is used by specialists to study the genetic variability of traits and the influence of climatic factors on seed production.
The plant possesses genetic resistance to downy mildew (gene Pl6), broomrape races A, B, C, D and E, rust, and sunflower moth. It also shows high tolerance to phomopsis, phoma, and sclerotinia. In hybrid combinations, the line is characterized as medium-early and demonstrates high seed germination rates.
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
№ 12017139
№ 66994
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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.
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Same species
Helianthus annuus L. · Sunflower
Soper, John
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Revol Benoit
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Oliv"ie Ladsus
Helianthus annuus L. · Sunflower
Cvejic Sandra, Jocic Sinisa,
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SINISA JOCIC / SANDRA CVEJIC / MILAN JOCKOVIC
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IWS (BG)
Nearby in the species list Betina, Betty, BF007607, BF009201, BF1069013, BF500135M, BF903313, BG N 1, BG N 2, BG N 3, BG9507, Biankor, Bilbao, Billy, Biloba CLP, Bilto, Bingo, Bioflor, BIOSOL, Biotcvet