Medium-ripening variety, obtained at Yakutsk Research Institute of Agriculture by crossing the 'Rubin' variety with selected forms of blackcurrant (R. sib. Wolf. x R. procumbens Pall.). Authors: M.A. Chertkova, L.P. Gotovtseva. Included in the State Register of Varieties Approved for Use in the East Siberian Region in 1999.
Medium-height, strongly spreading bush with medium density. Stems of medium thickness, hairy, yellowish-brown. Buds of medium size, solitary, conical, pressed, weakly pigmented with anthocyanins, hairy. Apical bud free. Leaf scar shape rounded.
Leaf five-lobed, medium size, green, matte, wrinkled, blade concave, margin toothed. Lobes pointed, with elongated, narrow tips; central lobe triangular, slightly longer than lateral ones. Angle between veins of lateral lobes nearly right. Basal lobes moderately expressed, spread out. Leaf base triangular, notch of medium depth and width, open. Teeth small, with clearly defined 'tip'. Petiole of medium length and thickness, hairy, weakly pigmented with anthocyanins in upper and lower parts, positioned at 450 angle to stem.
Flowers medium-sized, cup-shaped, calyx lobes pink, loosely arranged. Inflorescences of medium length, berry arrangement medium density, axis thickness and hairiness medium.
Berries large (1.1 g), oval-round, nearly black, dry detachment, medium number of seeds (29-76), medium skin, sweet taste with aroma, universal use. Calyx large, closed, pedicel medium length and thickness, green, with anthocyanin pigmentation, weakly hairy. Chemical composition: dry matter - 10.9-15.4%, total sugars - 4.0-7.3%, titratable acidity - 3.0-3.2%, ascorbic acid 216.2-326.6 mg/100 g.
Highly winter-hardy, high-yielding (average - 4.2 t/ha, maximum - 7.5 t/ha), medium resistance to diseases and pests, weak drought tolerance.
Advantages of the variety: high winter hardiness, high berry quality. Disadvantages of the variety: weak resistance to powdery mildew.
