Early-ripening variety, developed at the Yakut Agricultural Research Institute by crossing blackcurrant dikuscha (R. dikuscha Fisch.) and blackcurrant pro-cumbens (R. pro-cumbens Pall.). Authors: M.A. Chertkova, L.P. Gotovtseva. Included in the State Register of Varieties Approved for Use in the East Siberian Region in 1989.
Medium-height, medium-spreading, medium-density bush. Medium-thickness, hairy, yellowish-brown stems. Medium-sized, solitary, conical, pressed buds, strongly colored with anthocyanins, hairy, leaf scar shape wedge-shaped.
Five-lobed, large, green, slightly glossy, medium-thick, slightly wrinkled leaf with main veins folded. Lobes pointed, central lobe slightly longer than lateral ones, acute angle between lateral lobe veins. Basal lobes moderately expressed, spreading. Base heart-shaped, medium-wide, open notch. Teeth medium, sharp. Petiole medium length, thin, hairy, anthocyanin-colored at base, positioned at 45° angle to stem.
Large, broad flowers, calyx lobes pale pink at edges, loosely arranged. Inflorescences long (9-14 cm), straight, berries densely arranged, medium thickness and hairiness of axis, short pedicels.
Berries medium (0.9 g), round, black, waxy coating, weakly detachable, sweet and delicate flavor, versatile use. Thin skin, seed count 21-36. Calyx short, closed, pedicel short, green, without hairs. Chemical composition: dry matter 14.8%, total sugars 8.9%, titratable acidity 3.2%, ascorbic acid 99.8 mg/100 g.
Cold-resistant, productive (average 16.7 t/ha, maximum 46.7 t/ha), medium drought tolerance, medium resistance to diseases and pests, affected by powdery mildew and bud moth.
Advantages: early fruiting, early ripening, productive, cold-resistant, self-fertile.
Disadvantages: strongly affected by bud moth and powdery mildew.
