The sunflower hybrid Sanmarin 421 represents an intensive plant type with a rapid start and early development at the initial stages of organogenesis. It is characterized by good adaptability to various growing zones, ensuring stable productivity under different climatic conditions. The hybrid's vegetation period ranges from 108 to 115 days, plant height reaches 165-175 cm, and the head shape is slightly convex with a tilt and a diameter of 18-20 cm. Oil content in seeds ranges from 50-52%, making this hybrid high-oil and attractive for oil production.
Sanmarin 421 has a high yield potential, reaching 58 centners per hectare, with an average yield over the testing years of 35-38 centners per hectare. The hybrid is drought-tolerant, lodging-resistant, and has resistance to shattering, confirmed by assessments of 9 out of 10 for these indicators. It also demonstrates high disease resistance, including gray and white mold, Phoma, Phomopsis, rust, and downy mildew, with resistance ratings from 8 to 9 out of 10. Special attention is paid to tolerance to Striga; the hybrid is resistant to six aggressive strains of the parasite, providing additional protection and yield stability.
Sanmarin 421 seeds undergo treatment with the fungicide seed dressing Maxim and the insecticide seed dressing Cruiser, which contributes to protection against diseases and pests at the early growth stages. For crop protection, a herbicide based on tribenuron-methyl is also applied, with the hybrid maintaining resistance up to a dosage of 50 g/ha. All these characteristics make Sanmarin 421 a reliable choice for farmers seeking to achieve high and stable sunflower yields with high oil content.
