PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Remy ROUANET
also searched as: лг5582
10 August 2026
The hybrid belongs to the mid-early group with a vegetation period of 106–115 days. Plant height is approximately 155 cm, and the average head diameter is 15.8 cm. Seeds are characterized by large size, the thousand kernel weight is approximately 72 g, and seed oil content reaches 50%. The genetic base includes lines of the Tunka hybrid.
The plant possesses resistance to broomrape races A–G+, new races of downy mildew, as well as high tolerance to drought and cold hardiness. Resistance to phomopsis, phoma, white rot, and other main diseases is rated at 7 points out of 9. Lodging resistance is rated as above average.
Intended for cultivation using classical technology with a sowing density of 45–50 thousand plants/ha under insufficient moisture and up to 55 thousand plants/ha under sufficient moisture. The hybrid is distinguished by high initial growth vigor and is adapted to hot climatic conditions.
4 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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
№ 216415
№ LG5582
№ 014903_A 014903
№ 13039035
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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Nearby in the species list LG5556HO, LG5562, LG5563 CL, LG5565 CL, LG5566 CL, LG5567HO, LG5568, LG5572, LG5577, LG5581, LG5589 CL, LG5591, LG5595, LG5597 CLP, LG56.64 HO, LG56.97 CL, LG5600, LG5603CL, LG5604HO, LG5607 CL