Kavkaz Calville

Autumn variety selected by the North Caucasus Research Institute of Mountain and Piedmont Horticulture. Obtained by crossing Calville snow-white with Antonovka common. Author: P.P. Kostyk.

Tree strongly vigorous. Crown broad-round, dense. Stem thick with smooth light-brown bark. Skeletal branches of medium thickness, branching at nearly right angles. Predominant type of fruiting structures: ringlets, spear-shaped, short fruiting spurs.

Branches of medium thickness, straight, light-brown, with medium-length internodes. Leaves medium-sized, elongated, long-pointed, green, smooth with coarse venation. Leaf blade convex, curved downward, slightly hairy, with coarse serrated edges. Petiole medium-length, thick and hairy. Petiolules medium-thick, elongated.

Flowers medium-sized, small-cup-shaped, creamy, fragrant. Petals large. Stigmas medium-length, densely hairy, stigmas positioned at the same level as anthers.

Fruits medium-sized (120g), one-dimensional, round-shouldered, with weakly expressed ribbing, regular shape. Fruit surface smooth. Skin delicate, thin, smooth, glossy, main color at harvest time — greenish-white, with a light blush; at full maturity — light-yellow, with faint grayish subcutaneous spots. Fruit stalk medium-length and thin. Calyx persistent, closed. Receptacle small, narrow, poorly developed. Seed chambers half-open, large with small, egg-shaped, dark-brown seeds. Subcalyx tube short, funnel-shaped.

Flesh white with green veins, firm, juicy, sweet-sour with medium aroma. Chemical composition of fruit: sugars — 8.1%, ascorbic acid — 7.8 mg/100g, titratable acids — 0.41%.

Autumn ripening variety. Harvest ripeness occurs at the beginning of September, fruits can be stored until mid-December.

Early-bearing and high-yielding variety. High winter hardiness. Highly resistant to scab, moderately resistant to powdery mildew.

Advantages of the variety: high yield, excellent taste and external commercial appearance, resistance to scab, winter hardiness.

Disadvantages of the variety: fruit drop before harvest.