PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
10 August 2026
The hybrid belongs to the intensive type and is intended for cultivation in zones with moderate and sufficient moisture. The vegetation period is 106–115 days, plant height reaches 150–170 cm. Oil content in seeds varies from 48–49% to 51%.
The plant possesses resistance to imidazolinone herbicides, Orobanche cumana races A–E, Phoma, Phomopsis, and Sclerotinia. It is characterized by a strong stem, resistance to lodging, and drought tolerance. In the initial stages of development, it demonstrates moderate growth rates.
The recommended stand density at the time of harvest depends on the moisture level and ranges from 45 to 60 thousand plants per hectare. The hybrid is sensitive to excessive crop thickening.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 299018
Records are sourced from official registry publications. Data sources and legal status
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Nearby in the species list SY Marius, SY Marquis, SY Medina, SY Michigan CLP, SY Molto, SY Morison, SY Mulano AR, SY Neapolis, SY Nebraska, SY Neoma CLP, SY Neostar CLP, SY Nerida AR, SY Nexus CLP, SY Octavio, SY Odessa CLP, SY Olisto, SY Onestar CLP, SY Otello, SY Palacio, SY Paladium