Medium-ripening variety, obtained at the VNIIS named after I.V. Michurin by crossing the varieties Ojebyn and Black Pearl. Authors: T.S. Zvyagina, T.V. Zhidikhina. Included in the State Register of Varieties Approved for Use in the Central Chernozem Region in 2004.
Plant is tall, moderately spreading. Woody shoots are medium and thin, hairless, grayish, with a yellowish tint, apex yellowish-brown. Buds are medium-sized, elongated-oval, sit on a short stem, slightly deviated from the shoot, leaf scar shape is rounded-triangular.
Leaf is five-lobed, large, green, leathery, wrinkled, matte, blade is positioned downward, concave along the midrib, leaf margin curled downward. Lobes are pointed, central lobe is larger than lateral ones, sometimes with additional protrusions. Lateral lobes are widely spaced, angle between their midribs is obtuse. Basal lobes are well developed. Leaf base is heart-shaped with a central notch. Teeth are small, blunt, curled, saw-toothed, with a clearly defined white "tip". Petiole is medium length, thick, green.
Flowers are medium-sized, cup-shaped, calyx lobes reddish, free, curved in a bow shape. Inflorescences are medium length (5-7 cm), cylindrical, straight. Axis is thick with a "tanned" appearance, no petiole.
Berries are large (1.4-1.6 g), round, non-uniform, black, with a medium number of egg-shaped seeds, sour-sweet taste (4.6 points), general purpose use. Receptacle is round, medium-sized, closed, pedicel is long and medium. Chemical composition: soluble dry matter — 17.2%, total sugars — 9.8%, titratable acidity — 3.4%, ascorbic acid — 146.0 mg/100 g, P-active substances — 957.0 mg/100 g, pectin substances — 2.1%.
Variety is winter-hardy, early-fruiting, resistant to powdery mildew and leaf spot diseases, suitable for mechanized cultivation, average yield 12.9 t/ha (3.9 kg/plant).
Advantages of the variety: productivity, early fruiting, disease resistance, large berry size.
Disadvantages of the variety: insufficient resistance to bud mite.
