Currant Tona

Medium-ripening variety, obtained at Buryat PIAOS (now Buryat NIISS) from crossing varieties Berdchanka and Gorhon. Authors: N.K. Guseva, T.I. Voronina, O.K. Zorkol'tseva. Under state variety testing since 2006.

Strong-growing, moderately spreading bush. Stems medium, straight, with a shortened, compressed apex. One-year stems light-colored, with strong glandular pubescence. Buds medium, conical, light-brown, dense, densely arranged on one-year stems, with acute angle of deviation from the stem.

Leaves large and small, dark green, with weak gloss. Leaf blade slightly shiny, leathery, dense, wrinkled, slightly fleshy, straight. Teeth blunt, short, curled.

Flowers medium, pale-pink. Stamens positioned at the level of the pistil. Fruit cluster long (7-9 cm), axis medium, straight, moderately pubescent.

Berries large (1.5-2.2 g), round, black, medium-shiny, with a slight groove, medium skin, dry detachment, simultaneous ripening, good transportability. Pedicel medium, green, calyx medium, closed. Taste sour-sweet (5 points), aromatic, tender. Berries of universal use. Chemical composition: total sugars — 9.2-10.8%, ascorbic acid — 179.4-236.2 mg/100 g, P-active substances — 238.0436.0 mg/100 g.

Highly winter-hardy, highly self-fertile (64-80%), resistant to bud mite and powdery mildew, easily propagated by hardwood cuttings, layering, green cuttings, average yield 8.0 t/ha, maximum — 12.0 t/ha.

Advantages of the variety: winter-hardy, high-yielding, self-fertile, resistant to bud mite and powdery mildew.