Flax-dolguntsev, also known as a technical crop, is a medium-maturing flax variety with code 7853080, intended for obtaining high-quality fiber and seeds. The plant is characterized by a medium stem length, a blue-violet corolla in the bud stage, which turns blue upon full development, as well as a small capsule without fringed false septum. Seeds of brown color have a mass of 4.1-5.1 grams per 1000 pieces. Flax straw yield varies by region, reaching from 35.1 to 49.8 centners per hectare, while seed yield is 6.0-6.8 centners per hectare. The crop is distinguished by high resistance to lodging and diseases, including Fusarium wilt and rust, ensuring crop stability and reliability. Flax-dolguntsev is a valuable source of two types of products — fiber and seeds, making it in demand in various industries. Total fiber content reaches 27.1%, with a maximum value of 31.4%, while long fiber yield is 20.4%. Fiber physical characteristics include linear density of 2.64 tex, breaking load of 12 kgf, and flexibility of 61 mm, indicating high material quality. These indicators make flax-dolguntsev attractive for the textile industry and other application areas requiring strong and flexible fiber. Successful cultivation of flax-dolguntsev requires a scientifically sound approach, taking into account the crop's requirements for temperature regimes, moisture, light, and soil conditions. Cultivation technology includes seed preparation, fertilization, sowing, crop care, disease and weed control, as well as timely harvest collection. Compliance with these agricultural techniques allows increasing productivity and quality of flax products, making the crop profitable and resistant to adverse factors.