PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by NORTHRUP KING
also searched as: тордилло
10 August 2026
The plant is classified as a tall hybrid. Seeds have a striped hull, and their oil content is characterized as low. Studies note that the oil content level of this hybrid is less sensitive to changes in solar radiation intensity during the seed filling period.
The optimal sowing density for the hybrid is determined to be the standard planting scheme of 70 x 30 cm, corresponding to 47,620 plants per hectare. The main purpose of the variety in agronomic literature is related to the study of the influence of external factors on yield formation and seed quality.
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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 19890505
Records are sourced from official registry publications. Data sources and legal status
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Nearby in the species list TONSOL, Tonus, Top 75, Topaz, Topdor, Topflor, TOPSOL, Topsun, TORCAL, Torcaz, Toreador CL, Torero, Torero PR, Torino, Tornado, Tornasol, Toro, Toro SU, Toronto, TORP3886