Sunflower STR 536 is a high-yielding ultra-early hybrid, characterized by a rapid vegetation period lasting 85-90 days from germination to flowering. The plants reach a height of 100-120 cm and feature a convex head with a diameter of about 24 cm and an upright inclination. This hybrid is characterized by high oil content — up to 52%, making it attractive for the production of oilseed products.
Hybrid STR 536 is distinguished by high resistance to various diseases and stress factors. It possesses resistance to foamy spore wilt, foamy spore blight, rust, powdery mildew, gray and white rot, as well as sunflower nematode and sunflower moth. In addition, the hybrid demonstrates high drought resistance and resistance to lodging and shattering, which contributes to stable yield even in unfavorable weather conditions.
The yield potential of the hybrid reaches up to 40 c/ha, while the average yield over the years of testing reaches 24 c/ha. STR 536 seeds are suitable for sowing on various soil types due to their adaptability and genetic resistance. A high level of genetic modification ensures rapid plant development and stable crop formation, making this hybrid a profitable choice for agricultural production.
