PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Pioneer Overseas Corporation US (USA)
also searched as: пр 64 а 89
10 August 2026
The hybrid belongs to the intensive type and demonstrates high responsiveness to mineral fertilizers. The plant is characterized by resistance to shattering and broomrape races A–E, as well as tolerance to specific sunflower diseases.
The recommended plant density at the time of harvest is from 48 to 50 thousand plants per hectare in zones with insufficient moisture and from 50 to 60 thousand plants per hectare in zones with sufficient moisture.
8 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Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
breeder code xf4418
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 217351
№ A15179
№ 42123
№ 05017001
№ 010493_A 010493
№ P8148
№ 1410/32
№ 281631
№ 0281631
№ 1002583
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 1 record protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
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Same species
Helianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. · Sunflower
Revol Benoit
Helianthus annuus L. · Sunflower
Oliv"ie Ladsus
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Pioneer Hi-bred International Inc. (USA)
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION US
Nearby in the species list 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, PR 64 G 20, PR 64 H45, PR 64A83, PR 64G43, PR 64H51, PR 64H61, PR 64K20, PR 98-27RN, PR ST 28 B, PR351DMROR