Description and characteristics of the Korinka Russian grape variety, advantages and disadvantages, cultivation

Recommendations for growing Korinka Russian grapes apply to areas of the Central Black Earth region. It is in the section for this part of the country that it can be found in the State Register of Fruit Trees. The variety is characterized by high levels of winter hardiness, disease resistance, and early fruiting. A team of professional breeders worked on its breeding.

Breeding history

Korinka Russian, stenospermocarpy variety - seedless. He was bred by Lena Timofeevna Shtin and Ivan Maksimovich Fillipenko. This married couple who worked at the TsGL them. I.V. Michurina (in the Tambov region), is the author of 8 grape varieties, but only 4 of them are adapted for the Central Black Earth District. The grape variety Korinka Russkaya was based on the vines of Dawn of the North and Kishmish Cherny.

Advantages and disadvantages of the type

From the parent shoots the variety took the following advantages:

• high crop ripening rate;
• sweet taste, not overloaded with additional notes;
• consistently high yield ≈ 80 c/ha;
• transportability;
• consumer versatility;
• the berries do not shrink under any weather conditions;
• frost resistance.

The negative aspects of the vineyard include the height of the bushes, which makes harvesting somewhat difficult.

External data

The description of grapes consists of several factors - height of shoots, size of berries, taste, ripening time, transportability of the crop, plant resistance to frost and disease.

Bush and leaves

The bushes of Korinka Russkaya have a non-standard height for grapes; they reach 3 m. The lower tier of the bush consists of shoots 2.1 m long. The vine is light brown in color. The root system is branched and powerful.

This variety can be recognized by its large wrinkled leaves that do not have a deep dissection; the pubescence on them more closely resembles a sparse cobweb.

The color is green, but the veins have a yellowish tint. The bush is strong, strong, spreading and self-fertile; during the flowering period, bisexual flowers bloom on its shoots.

Yield and taste of berries

The productivity of the Korinka Russian variety is stable and annual. On average, up to 800 kg of sweet berries can be collected from each hectare. The average weight of a bunch is 250 g, its shape is conical, the structure is medium loose, which contributes to better ripening - above 80%. The sugar content of the total mass fraction of juice is 20-22%, acid - 5 g/l.

Tasters found this proportion to be the best. Consumers like this variety of berries for its thin skin, juicy, sweet pulp.

Technical characteristics of the variety

Korinka Russian belongs to the table varieties, but the round berries are not large - from 8 to 10 mm in length, the color is yellow, the sides of the berries, caressed by the sun's rays, acquire a pinkish blush.

Immunity to diseases

When grown in the Central Black Earth region, the variety has high immunity to common grape diseases. With proper care, absence of waterlogging of the soil and in other regions, this variety can be protected from all types of diseases by preventive treatments of bushes and soil. When growing Corinka Russkaya in cold areas, the main pathogens of grape diseases die in severe frosts.

Frost resistance

In regions where the drop in air temperature does not exceed 26-28 °C, Korinka Russkaya winters comfortably. In areas with harsher climates, this grape variety is grown as a cover crop.

In what areas can it be grown?

Central Russia, the Baltic states and other regions of temperate continental climate are suitable for growing Korinka Russian grapes in open ground. The only peculiarity is the additional insulation of plants in preparation for the winter period.In the Northwestern region, the harvest will take place at the beginning of September, which is almost a month and a half later than this period in the Krasnodar Territory.

Growing in central Russia has one advantage - berries left on the bushes until fully ripened acquire a honey taste and aroma.

Features of agricultural technology

The vine is reminiscent of bindweed, which needs support in order to strive upward, rather than creep along the ground. It is recommended to plant Korinka Russian grapes on a trellis. This will not only decorate the area, but will also give the sun's rays access to more berries. The quality and weight of the harvest will only improve.

Soil moisture

The soil is moistened 4 times per season:

1. before the leaves bloom;
2. at the initial stage of flowering;
3. during the period of formation and swelling of berries;
4. Before the onset of frost, the soil is moistened for the last time.

Attention! 4-5 weeks before harvest, watering of the vineyards stops.

Mulching

The soil is insulated with sawdust, straw, hay, and peat after water-recharging irrigation, which simplifies the wintering of the plant. It is first necessary to remove fallen leaves from the area, in which the pathogen can overwinter, and cover the area adjacent to the bush with a 10-centimeter insulating layer. It will create a greenhouse effect. In dry areas, mulching is also carried out in the summer to prevent moisture evaporation and protect the area from weeds.

Trimming

Planned autumn pruning is to plan for next year's harvest. There should be no more than 10 eyes left on each vine. The bush is able to provide nutrients to 40 buds. In the spring, adjustments are made; only one bunch of grapes is left on each vine.

Top dressing

Organic matter is added to the grape bushes in the fall over a period of 2-3 years. Minerals are added to the soil in the spring before flowering, at the time of ovary formation, at the stage of intensive growth of bunches. To obtain a larger bunch, treatments are carried out with Gibberellin.

Protection from diseases and pests

Prevention, timely removal and burning of affected leaves and shoots, spraying with Bordeaux mixture, removing fallen leaves, mulching and draining the area, applying mineral root and foliar fertilizers is the best protection for the plant from insect pests and fungal infections.

Fruiting and harvest period

From the opening of the buds to the ripening of the berries, 110-115 days pass. In the southern regions, on the sun-exposed eastern slopes, the berries are ready for consumption in the last ten days of July. In the open ground of the Moscow region and the Leningrad region, you can taste ripe berries only in late August - early September.

Where to use grapes

The quality and taste of Korinka Russkaya berries are similar to raisins; accordingly, they are perfect for consumption fresh and dried. Compotes can be prepared from grapes and fresh berries.