Early-maturing variety, developed at the All-Russian Research Institute for Fruit Crop Selection and the Siberian Institute of Horticulture named after M.A. Lisavensky through cross-pollination of the 'Seyanets Golubki' variety using a pollen mixture from seedlings obtained from open pollination of the 'Bredtorp' variety. Authors: T.P. Ogoltsova, Z.S. Zotova, L.V. Bayanova, S.D. Kniazhev. Included in the State Register of Varieties approved for use in the Northwestern and Volga-Vyatka regions in 2004.
Low-growing, medium-spreading, moderately dense bush. Growing shoots are green, shiny, hairless. Woody shoots are medium-length, straight, hairless, weakly shiny, gray-brown, with a brown tip. Buds are medium-sized, oval-rounded with blunt tips, pink, arranged parallel to the shoot, sometimes the tip slightly deviates, sessile or on a very short stem. Terminal bud is free or non-free; leaf scar shape is round or round-triangular.
Leaf is five-lobed, medium-sized, green, weakly shiny, wrinkled, slightly puckered, with a bronze tinge (closer to the tip). Deep, sharp indentations between lobes. Central lobe is larger than side lobes, with additional projections, wide, triangular, with a sharp 'tip', slightly bent downward. Side lobes are short, sharp, narrow, angle between their veins is obtuse or straight, upper sides of side lobes are raised upward or lie on a straight line, lower sides are strongly angled. Basal lobes are weakly expressed, veins are raised and directed toward the petiole or spread out. Leaf base has a deep open or closed notch. Teeth are large, blunt, petiole is medium-sized, colored at the base.
Flowers are medium-sized, pale, sepals are medium-sized with pale coloration, curled upward.
Berries are large (2.2 g), round-oval, nearly black, skin is thin, sweet (4.7 points), delicate flavor, universal use. Receptacle is half-open, peduncle is medium, brown-green. Chemical composition: soluble dry matter — 12.1%, total sugars — 9.3%, titratable acidity — 2.1%, ascorbic acid — 193.6 mg/100 g, anthocyanins — 103.8 mg/100 g, leucoanthocyanins — 190.1 mg/100 g, catechins — 221.6 mg/100 g, total P-active substances — 515.5 mg/100 g.
Winter-hardy, early-fruiting, self-fertile (71%), resistant to powdery mildew and bud mite, average yield 9.0 t/ha (1.4 kg/plant), predominantly ring-shaped fruiting.
Advantages of the variety: large berry size, high flavor quality of berries, resistance to powdery mildew and bud mite, early ripening.
Disadvantages of the variety: low stature, branches bend significantly under heavy fruit load, berries become soft and drop when overripe, requires high agro-ecological conditions and regular renewal of old branches.
