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Today, gardeners can create a real rainbow on the site from currant varieties with different berry colors. There are plants with black, yellow, white, red berries. The range of plants is quite wide, but not all gardeners are familiar with the description and characteristics of plants.
Currant varieties Jonker Van Tets – the owner of red berries. According to experts, red-fruited varieties contain many useful substances. The features of the plant, the rules of reproduction, cultivation and care will be discussed in the article.
Description
The description of the Jonker Van Tets currant variety was given by Dutch breeders as early as 1941. At first, the plant began to be grown in Western Europe; it was brought to Our Country in 1992. The variety is intended for cultivation in regions with a temperate climate.
Bush
The development of the redcurrant bush Jonker is intensive. Overgrown a lot, and the shoots are upright. The stems of young shoots of a pinkish hue without pubescence. Older shoots can be identified by their light beige color. The shoots are flexible, so they do not break.
A large leaf blade with five lobes of dark green color. Blades in the form of pointed triangles of different lengths. Each leaf has serrated edges. Leaf blades are held on thick petioles.
Flowers
The kidneys are small, held on a short stalk, shaped like an egg. The flowers emerging from the buds are large, open like saucers. Greenish sepals tightly pressed to each other. The petals are large, obliquely triangular.
The currant of this variety produces brushes of different lengths, on each of which about 10 berries are formed. They sit on a green petiole of medium thickness.
Currant variety Jonker Van Tets is distinguished by large round or pear-shaped fruits, which can be clearly seen in the photo. The berries have a dense skin of bright red color. There are few seeds inside, within five pieces. The berries taste sweet and sour, they are good for fresh consumption and processing.
Red fruits contain:
- dry matter – 13,3%;
- various sugars – 6,2%;
- ascorbic acid – 31,3 mg / 100 g.
Advantages of the variety
Despite the fact that today there are a huge number of new varieties of red currant, from Jonker Van Tets, according to gardeners, no one wants to refuse. The point is not only in taste, but also in the great benefits of red berries. They contain a lot of minerals, vitamins of groups A, C, P, tannins and pectin substances.
The old variety of currant has a lot of advantages:
- High and stable yield from year to year. One adult bush of the Jonker variety produces up to 6,5 kilograms of berries. When grown on an industrial scale and in compliance with agricultural standards, 16,5 tons are harvested per hectare.
- The self-pollination of the variety is high. But if other varieties of red currant grow with Jonker Van Tets, the berries become larger. Harvest begins to be harvested in the second year after planting the bushes.
- This variety of red currant has good transportability. The berries are easily torn off when harvested, do not get wet and do not flow in the future.
- Jonker currant is frost-resistant, but despite this, in winter, the root system must be well covered with compost.
- The variety of Dutch breeders is unpretentious in care,
- The plant is resistant to powdery mildew, anthracnose and bud mites.
In nature, there are no ideal plants; the Jonker Van Tets currant variety also has some disadvantages. In particular, due to early flowering, the bushes may suffer from spring frosts, which leads to the fall of the ovaries.
Cultivation and care
When the red currant variety Jonker began to be grown in Our Country, suitable regions were chosen: North-Western, Volga-Vyatka, Central Black Earth. According to the description, the plant feels good in a temperate zone. Frost in winter or drought in summer, currant endures steadfastly. In spring, when the air temperature fluctuates from minus to plus parameters, the surface around the bushes is mulched.
Site Selection
For redcurrant varieties Jonker Van Tets choose a sunny place on the site. When planted in the shade, the berries do not have time to collect sugar, they will turn out to be very sour. The yield is also declining. A good place would be along fences or next to buildings. Plants are difficult to tolerate north winds.
Take into account when planting the height of groundwater. Redcurrant also does not like when the water stagnates. If the site is in a lowland, the seats are made on a hill, and a thick drainage cushion is laid on the bottom of the pit. Then soil is poured into which humus or compost, wood ash are added.
The soil for Jonker Van Tets currants should be slightly acidic. The best option is loam and sandy soils.
Planting of seedlings
Before starting work, seedlings are inspected for damage and disease. If there are signs of disease, it is better to refuse planting material. Seedlings are placed in water so that the root system is saturated with water.
In order for the plant to adapt faster after planting, the shoot is cut off by 2/3, and the leaves are also shortened. The seedling is placed in the hole at an angle of 45 degrees and watered abundantly. Then sprinkled with earth. The soil is trampled down
How to plant red currants:
Watering
The redcurrant of the Jonker Van Tets variety is described as a drought-resistant plant. Water it in the absence of rain 2-3 times a week. A bucket of water is poured under one bush.
In July and August, the amount of water is increased. During this period, fruits ripen on the bushes and flower buds are laid for fruiting in the next season. If there is not enough moisture, then not only the current, but also the future crop can be under-harvested.
Additional fertilizing
For successful fruiting and a bountiful harvest, Jonker redcurrants are fed in the spring. At this time, the plants are fed with organic matter. Plants respond well to horse manure or humus. Be sure to add wood ash (100 grams per bush), which is then sealed up when loosening into the ground.
Today, many gardeners refuse mineral fertilizers. But if they are used, then such a nutrient mixture is added under each currant bush:
- double superphosphate – 70-80 grams;
- potassium sulfate – 30-40 grams.
Trimming
To obtain a stable harvest, redcurrant bushes of the Jonker Van Tets variety must be formed. If pruning is carried out correctly, then this will not only increase the yield, but also help the plant cope with diseases and pests.
Pruning features:
- The bushes are cut for the first time at the time of planting. Branches are cut by 2/3. Thanks to this procedure, the plant begins to bush, expels side shoots.
- In the spring, pruning is carried out early, until the buds begin to swell. Remove frost-damaged or broken branches, and also cut the tops of the shoots by 5-6 centimeters.
- In autumn, after harvesting, cut out old branches that have been fruiting for more than 4-5 years. Shoots with damage and disease are subject to removal. You need to cut the branches near the ground so that there are no stumps, as in the photo below.
- Redcurrant Jonker, according to the description and reviews of gardeners, grows strongly over the summer. That is why it is necessary to cut out excess growth so as not to weaken the bush.
With the correct formation of an adult bush, it should have about 15-20 shoots of different ages. Only healthy and strong branches are left for replacement. Experienced gardeners recommend rejuvenating the Jonker variety every year by removing the oldest shoots.
Cut shoots that are not damaged by diseases and pests can be used to propagate currants.
Diseases and pests
According to the description and numerous reviews of gardeners growing the Jonker Van Tets raspberry variety, the berry bush is resistant to many crop diseases. But without preventive treatments is still not enough. This will help minimize the damage to the bushes by anthracnose and bud mites:
- From anthracnose, plants are sprayed with fungicides and antifungal drugs, Bordeaux mixture or copper sulphate. Any drugs are diluted in accordance with the instructions.
- With regards to the kidney mite, in order to destroy it in early spring, until the soil has thawed, the bushes are watered with boiling water. You can treat currants with Fufanon before bud break. Spraying with colloidal sulfur gives a good effect. 150 grams is enough for a ten-liter bucket.
To combat powdery mildew, aphids and caterpillars, you can use a folk remedy – an infusion of onion peel.
Tips for spring processing currant bushes:
