Gamma

Medium-late maturing variety, developed at the All-Russian Research Institute of Fruit Crop Selection from a cross between the variety 'Exotika' and seedling 762-5-82, a progeny of blackcurrant. Authors: T.P. Ogoltsova, S.D. Knyazev. Included in the State Register of Varieties approved for use in the Central Chernozem region in 2007.

Medium-height, semi-spreading, dense bush. Growing shoots are straight, medium-thickness, matte, slightly hairy, with anthocyanin-colored tips. Woody shoots are medium, gray, hairless, with golden tips. Buds are medium, pinkish, conical, pointed, hairless, alternate, solitary (sometimes two per node), deviated from the shoot, apical non-free, leaf scar shape rounded.

Leaf five-lobed, medium to small size, green, matte, medium-creased, blade straight, with slightly curled edges. Middle lobe is longer than lateral ones, sharp with downward-curled tips and weakly pronounced additional projections. Lateral lobes are short, sharp, upper sides lie on one straight line, lower sides are sloped, angle between veins is straight. Basal lobes are moderately expressed, veins spread out. Base has a small, open notch. Teeth are small, broad, curled. Petioles are long, weakly anthocyanin-colored, hairy.

Flowers are medium, pale, calyx lobes are medium, brightly colored. Inflorescence is medium, dense, axis is medium, hairy.

Berries are medium (1.1 g), round, one-dimensional, black, shiny, medium skin density, dry detachment, medium seed content. Calyx is medium, closed, pedicel is medium, brown-green. Taste is sour-sweet (4.3 points), with aroma. Berries are versatile. Chemical composition: dry matter - 13.1%, sugar sum - 8.8%, titratable acidity - 2.7%, ascorbic acid - 169.7 mg/100 g, anthocyanins - 104.4 mg/100 g, leucoanthocyanins - 204.9 mg/100 g, catechins - 200.7 mg/100 g, sum of P-active substances - 510.0 mg/100 g.

Cold-resistant, early-bearing, self-fertile (64%), immune to powdery mildew and rust, resistant to bud mite, but susceptible to anthracnose and septoria, suitable for mechanized harvest, average yield 8.3 t/ha (1.2 kg/plant).

Advantages of the variety: immunity to powdery mildew and rust, resistance to bud mite, consistently high yield.

Disadvantages of the variety: susceptibility to anthracnose and septoria.