IR 181 DMR

The IR 181 DMR sunflower hybrid is a medium-early simple hybrid with a vegetation period ranging from 108 to 115 days. Plants reach a height of 170–190 cm, and the head diameter is 17–22 cm, providing good area for seed formation. The 1000-seed mass is approximately 72 g, indicating the hybrid's large-seed character. The potential yield reaches 4.8–5.2 t/ha, and oil content ranges from 50–53%, making this hybrid attractive for producing high-quality oil.

IR 181 DMR exhibits high resistance to various diseases and stress factors. The hybrid shows resistance to downy mildew (races A–E), false powdery mildew, and also displays high resistance to diseases such as rust, phomopsis, phomosis, gray and white rot, with resistance ratings of 5–7 points. Additionally, the hybrid is resistant to the herbicide Express (Granstar) at a rate of 30 g/ha, which simplifies weed control and enhances the efficiency of agronomic practices.

A distinctive feature of the hybrid is uniform and synchronized flowering, as well as even seed maturation, which helps reduce seed shattering during the ripening period. The recommended planting density varies depending on moisture conditions: in adequately moist zones — 55–60 thousand plants per hectare, in moisture-deficient zones — 50–55 thousand plants per hectare. These characteristics make IR 181 DMR a high-tech and reliable choice for cultivation under various climatic conditions.