White Kokur grape

White Kokur grape
The main characteristics of the variety:
  • Authors: Ukraine
  • Appointment: universal
  • Berry color: yellowish green
  • Taste: simple
  • With bones: Yes
  • Ripening period: late
  • Ripening period, days: 160-170
  • Frost resistance, ° C: -18
  • Name synonyms: White long, Bigas Kokur, Long, Kokur de Zante
  • Bunch weight, g: 160-200
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The Kokur white variety is a local or, in other words, "aboriginal" variety of the Crimean grapes. Late in maturity, not resistant to frost, has an average immunity to fungal diseases, and has a high yield. Used for desserts, making strong and table wines, as well as champagne and cognac.

Other names White long, Bigas Kokur, Kokur de Zante.

Breeding history

According to the version of the Russian scientist P.P. Kepner, White Kokur was brought to the Crimea by the Greeks from the island of Corfu in the XII-XIV centuries.

Geography of distribution

It is grown in the southeast and southwest of Crimea; it is also widespread in the Don River basin.

Description

The bushes are tall, the leaves are large and curly, deeply dissected, five-lobed can be seven- and nine-lobed, funnel-shaped. The leaf plate is smooth, light green, with slight pubescence in the lower part. Green shoots are distinguished by intensive growth, reach a length of 2.5 meters, strongly thicken the plant. Inflorescences of medium size, moderate density, with two developed upper branches. Ripening of shoots is high.

Ripening period

From budding to ripening of berries, 160-170 days pass, a little more under unfavorable conditions. Harvested from early August to early September.

Bunches

The grapes have small clusters weighing 160-200 g, with good care it reaches 350 g. Conical, sometimes cylindrical, with strongly developed blades, not very dense.

Berries

Fruits are large, oval, yellow-green, when overripe they become light amber in color with a slight waxy bloom. The skin is thin, the pulp is very juicy, loose - melting with a special aroma. Contains 2-3 small seeds. Peas are insignificant.

Taste

Pleasant harmonious grape, the optimal combination of sweetness and acidity. Contains 22-24% sugar, acids - 7-8 g / l.

Yield

Characterized as tall but inconsistent. On average 3-4 kg per bush.

The choice of planting material
Experienced gardeners recommend that beginners take cuttings and seedlings from those who made them from their vines and are professionally engaged in the production of such material.
You can evaluate the quality by cutting off a small amount of bark. When growing a bush from a cuttings and observing the rules of agricultural technology, survival rate is about 90%, the high quality of the plant is practically guaranteed. It is possible to control the development of grapes at all stages.
Subject to the rules of agricultural technology, survival rate is about 100%. The seedlings must be healthy. Pay attention to the absence of blisters, growths, or other signs of disease.

Growing features

It can suffer from spring frosts, therefore it is recommended not to remove the shelter early, making holes for ventilation. In climates with recurrent frosts, it is better to cover at night. It tolerates a lack of moisture well.

The vines must be tied up, as they break off easily.

Can be grown in a greenhouse, the height of the structure is at least 2 m.

Landing

It is necessary to plant in autumn, in October, before the onset of cold weather, or in spring, from early April to mid-May. The variety prefers elevated, light and warm places, in the lowlands it is strongly affected by fungal diseases. They are planted from the south or west side of buildings, or a structure is erected to protect it from the wind. Grows well on rocky and sandy, sandy loam soils. The close location of groundwater oppresses the plant.

An interval of 2.5 meters is made between the seedlings. They dig a hole 80 cm deep and wide, put drainage on the bottom, pour a mound - a mixture of peat, humus and sand (1: 1: 1), add ammonium nitrate and potash fertilizers, pour 2 liters of water. After half an hour, a bush is placed on the hill, covered with a mixture of peat and sand, watered abundantly, mulched. When planting seedlings in a row, dig a trench.

Landing features
In order for the vine to give a signal harvest after 3 years, it is necessary to take into account many factors - from the type of soil on the site to the nearby plants.

Pollination

The flowers are bisexual, they pollinate themselves; with additional pollination, the yield increases up to 50%. Use the pollen of the appropriate pollinator varieties. Can be a good pollinator for other grape varieties.

Pruning

Long pruning is recommended, since the most fruitful shoots are located above 4 knots. To obtain a regular harvest, cut into 5-6 eyes. It is advised to form on a 2-3-sleeve system. Often grown on arched structures. In the first year after planting, do not prune.

Pruning is one of the main grape care procedures. Depending on the purpose of pruning and the type of plant, the appropriate type of formation is selected.

Watering

The first watering is carried out after removing the winter insulation. 1 bush requires 40 liters of water. The second time is watered a week before flowering, the next - after the flowers have fallen off. Do not watered during the ripening period. The last irrigation is done 7 days before the shelter for the winter.

Irrigation schemes
In order for the berries to be large and juicy, it is necessary to organize full watering and feeding. All standards must be adjusted for weather conditions and the rate of evaporation of the liquid.
With a frequent watering scheme, it is recommended to moisturize once every two weeks (that is, twice a month during flowering and the appearance of berries) so that the earth is saturated 50 cm deep so that the plant does not switch to superficial (dew) roots. This amount can be reduced by mulching the crop with straw.
With a rare irrigation scheme, choosing the age and ripening period of the grapes, you can use the standards presented in the table in another article.

Top dressing

The first is carried out in the spring after removing winter insulation with dry nitrogen fertilizers, potassium and superphosphate. They are introduced into a specially dug groove, which is then sprinkled. Before flowering for 7-10 days, they are fed with a solution of manure or manure with potassium-phosphate additives.

Foliar top dressing with the preparations "Aquarin", "Kemira", "Novofert" is obligatory.

Frost resistance and the need for shelter

The variety is not winter-hardy, but the lashes covered for the winter do not freeze. Young vines are also closed in regions with a warm climate. The lashes are laid on boards, covered with spunbond or agrospan. In colder areas - still spruce branches and sprinkle with soil.

Shelter for the winter is a very important step for the preservation of many grape varieties after wintering.

Diseases and pests

Strongly affected by powdery mildew, gray rot, mildew. Recommended spraying with Bordeaux liquid, fungicides. Medium resistance to pests - leaf roll. For prevention, they are treated with insecticides.

Storage

Berries with intact waxy bloom are stored for up to 2 months in a cool, dry place. The bunches can be transported in small wooden boxes when stacked in a compact, even manner.

General characteristics
Authors
Ukraine
Name synonyms
White long, Bigas Kokur, Long, Kokur de Zante
Appointment
universal
Yield
100-170 c / ha
Yield
high-yielding
Bunches
Bunch shape
conical, sometimes cylindrical-conical
Density of the bunch
medium density
Bunch weight, g
160-200
Berries
Berry color
yellowish green
With bones
Yes
Number of seeds, pcs.
2-3
Taste
simple
Sugar, g / dm³
210-240
Acidity, g / dm³
7,6-8,5
Skin
medium density, covered with light spring
Pulp
juicy
Berry shape
aligned, oval or ovoid
Berry size, mm
length 18-19, width 13-14
Berry size
large
Growing
Frost resistance, ° C
-18
Flower type
bisexual
The power of growth
vigorous
Landing scheme
requires increased distance between bushes in rows
Percentage of fruitful shoots
55-80
Fruiting rate
1,2-1,3
The number of inflorescences on the shoot
1,2-1,6
Number of bunches per escape
1,2-1,3
Resistance to fungal diseases
unstable
Mildew resistance, points
4 points (susceptibility)
Resistance to powdery mildew, points
4 points (susceptibility)
Resistance to gray rot, points
3 points (tolerance)
Maturation
Ripening period, days
160-170
The sum of active temperatures from the beginning of budding to technological maturity, ° C
3300
Ripening period
late
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