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Sunflower hybrid SI Lewis exhibits high resistance to downy mildew, including races A-G, as well as to diseases such as false powdery mildew (FPM) and gray mold. It possesses outstanding oil content, often reaching 53-55%, making it attractive for obtaining high oil yields. Due to its high plasticity regarding sowing dates and belonging to an early maturity group, this hybrid allows flexible planning of agronomic operations and avoids the negative effects of July heat, which typically coincides with sunflower flowering.

SI Lewis is characterized by stable yield and high drought resistance, ensuring reliability when grown under various climatic conditions. The drought resistance level is rated at 99, indicating its ability to withstand adverse weather conditions without significant yield losses. Additionally, the hybrid demonstrates high tolerance to Fomopsis and sclerotinia, further reducing disease risks and contributing to seed quality preservation.

This sunflower hybrid is suitable for cultivation in regions with variable climatic conditions due to its adaptability and resistance to major diseases. Early maturity allows avoiding stress factors during flowering, positively impacting yield and product quality. SI Lewis is an optimal choice for farmers aiming to achieve a stable and high oilseed yield with minimal plant protection expenditures.