PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by May Agro Seed Industry and Trade Corporation
also searched as: мс сирена
10 August 2026
The hybrid belongs to the medium-ripening or medium-early group with a vegetation period from 100 to 120 days. Plant height is 160–170 cm. The head has a convex shape and is oriented downwards.
Oil content in seeds reaches 46–52%. The plant possesses resistance to lodging, downy mildew, phomopsis, peronosporosis, and rust. The hybrid is tolerant to five races of broomrape (A–E).
The variety is distinguished by good adaptability to various soil types, including sandy soils, and high stress tolerance to heat and drought. The hybrid does not tolerate overcrowding well; the recommended seeding density is from 50 to 62 thousand plants per hectare depending on the climatic zone.
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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
№ 216690
№ 692/21
№ 56229
Records are sourced from official registry publications. Data sources and legal status
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Nearby in the species list MS 06, MS 2077A, MS-235P, MS-237E, MS 368 A, MS 43A, MS 639 A, MS 82 A, MS Biser CL, MS Oliva CL, MS001A, MS001B, MS04S, MS12S, МS505A, MSE1101, MSE1102, MSE1103, MSE1104, MSE1105