Rondo grapes

Rondo grapes
The main characteristics of the variety:
  • Authors: Czechoslovakia and Germany
  • Appointment: technical
  • Berry color: black
  • Ripening period: early
  • Frost resistance, ° C: -24
  • Name synonyms: Gm 6494-5
  • Flower type: bisexual
  • Skin: durable
  • Appeared when crossing: Dawn of the North x Saint Laurent
  • Berry shape: rounded
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A huge number of specialists have been working on the development of new grape varieties for many years. This is due to the fact that the fruits of this plant can be used in the preparation of various dishes, to obtain wine or raisins. The Rondo variety is a vigorous plant that is characterized by an early ripening period.

Breeding history

Rondo is considered to be one of the technical grape varieties. It appeared in Czechoslovakia and Germany, originally known as Gm 6494-5.

The cultivation of this grape was originally carried out by Dr. V. Kraus. After short work, he invited Dr. Becker to take up breeding work. Rondo was officially patented in 1997.

Description

A vigorous plant is characterized by the fact that the first berries appear in mid-August. There are several main advantages.

  • Good frost resistance.

  • Early ripening.

  • Resistant to mildew.

  • The leaves are large in size, have a green tint with yellow tints. The vine ripens completely in one season.

Ripening period

The popularity of the variety in question is associated primarily with the early ripening period. The first berries ripen in early August under favorable conditions.

It takes about 130 days from the swelling of the buds to the full ripeness of the berries. In most cases, berries are picked at the end of August.

Bunches

The resulting clusters have a conical shape. The maximum weight of one bunch is not more than 300 g.

It should be borne in mind that the berries dry out very quickly. Therefore, it is necessary to collect the berries in a timely manner, otherwise they will quickly fall off.

Berries

The resulting berries are relatively small, mostly round in shape. The skin is firm, blue in color, with a shimmer.

The berries are very densely located. At the same time, they are not subject to decay, but they fall off if the harvest is not carried out in a timely manner. The berries weigh up to 3 g.

Taste

Attractive taste has become the reason for the spread of this variety. Sugar content up to 21%, acidity 10 g / l.

Many people rate the taste at 4 points. These grapes can be used to make various drinks.

Yield

Fruiting takes place within two or three years. Ripening of the vine is carried out at 6/7 of the length. The yield indicator is average. The optimal load is 3-5 eyes.

The choice of planting material
Experienced gardeners recommend that beginners take cuttings and seedlings from those who made them from their own vine 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

Among the features of cultivation, one can note the need for periodic pruning and fertilization. This is due to the vigor of this plant.

Fertilization should be done during the growing season and after harvest. This is due to the fact that the plant requires a lot of energy to form fruit even before the onset of frost.

Landing

Planting the plant in question should be carried out taking into account all the recommendations.

  • Disembarkation is carried out in spring or autumn.

  • Before performing the work directly, you need to inspect the root system, it must be white and not damaged.

  • The depth of the holes created should be twice the length of the roots of the seedlings.

  • For the grapes in question, a support is required; at the first time after planting, a wooden peg is used.

  • Immediately after planting, you need to pay attention to timely mulching and systematic watering. Grapes do not tolerate drought well.

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

There are no major problems with pollination of this variety. This is due to the presence of flowers of both sexes.

The main requirement for good indoor pollination is to create a slight breeze. For this, windows are covered or fans are installed. Otherwise, the pollen does not move well.

Pruning

You need to prune in the second year after planting. It is recommended to leave only 5 eyes, as otherwise the plant will not have the proper amount of nutrients for the formation of berries.

Preventive pruning is carried out before the immediate onset of cold weather. At this stage, damaged areas and remaining leaves are removed.

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.
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, having chosen the age and ripening period of the grapes, you can use the standards presented in the table in another article.

Frost resistance and the need for shelter

The frost resistance index is average. The vine can withstand frosts down to –24 degrees Celsius. However, prolonged exposure to frost causes the death of the plant.

There is a need for shelter for the winter period. This can be done by removing the vine from the support, after which preventive pruning is performed, the creation of a frame structure and its cover with dry foliage.

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

Diseases and pests

The increased resistance to mildew determines the wide distribution of the variety. However, it is more susceptible to chlorosis.

The plant can be attacked by ticks. It is quite difficult to deal with them, since after the appearance of several individuals, the colony spreads quickly. Moreover, the appearance of new individuals is not associated with the time of the year or the weather.

Storage

As previously noted, harvest should be done immediately after ripening. Berries are stored at temperatures up to 4 degrees Celsius for one week. On the branches, they quickly lose their moisture, shrink and crumble.

The variety in question, because of its taste, is most common among winemakers.

General characteristics
Authors
Czechoslovakia and Germany
Appeared when crossing
Dawn of the North x Saint Laurent
Name synonyms
Gm 6494-5
Appointment
technical
Berries
Berry color
black
Sugar, g / dm³
190-210
Acidity, g / dm³
9-10
Skin
durable
Berry shape
rounded
Berry size
shallow
Growing
Frost resistance, ° C
-24
Flower type
bisexual
The power of growth
vigorous
Mildew resistance, points
3,5
Maturation
Ripening period
early
Reviews
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