Detailed description of the polka strawberry variety


Dutch Strawberry Shelf previously held one of the leading positions in the European market. It produces a harvest of large berries with good taste, which are well tolerated during transportation and can be stored for a long time. Today the variety is not as popular in industrial cultivation, but it has not been forgotten by farmers and gardeners.

Origin, description and characteristics of the variety

The original name of Strawberry Polka is Fragaria Polka... The variety was bred by Dutch breeders in 1977, crossing the Unduka and Sivetta varieties.

Despite its foreign origin, strawberries are successfully cultivated in the middle latitudes of Russia, in the Ukrainian and Belarusian countries, as well as in the Baltic countries.

It is readily grown in small and medium-sized production, in the open field and in greenhouse conditions.

Polka bushes are formed by strong shoots and large leaves. These are vigorous plants with a developed root system, which can reach a height of half a meter.

Berries Shelves at the beginning of fruiting weigh up to 50 grams, subsequent fruits are half. The shape of the berries resembles a blunt shortened cone with a scarlet glossy surface.

According to the description, the flesh has a dense texture with an uneven red color. The skin is thin but firm - does not stain the hands when touched.

Berries Shelves have a pleasant aroma and sweet taste with caramel notes. The peduncle is separated from the fruit with effort.

Bushes produce many tendrils, so they need to be cut in a timely manner in order to prevent depletion of the planting and loss of part of the crop.

The shape and color of the berries does not suffer from heat treatment... Therefore, jams and compotes are distinguished by a rich burgundy color. When the fruit is dried, the taste is not only preserved, but becomes more pronounced.

Advantages and disadvantages

To the pluses of the Shelves, gardeners include:

  • frost resistance - strawberries do not suffer from frost, but to survive the winter without losses, you will need shelter;
  • unpretentiousness - does not take a lot of effort when growing;
  • versatility in use - suitable for all types of processing, including industrial;
  • well stored and tolerates transportation without loss;
  • resistance to diseases and pests, prevention is still required.

The disadvantages of the Shelves are:

  • rapid degeneration of bushes - after two years the berry becomes smaller, therefore, plant transplantation to a new place is required;
  • during drought, the taste, weight and quality of the fruit suffer, although the variety is declared drought-resistant;
  • vigorous bushes grow rapidly, so regular pruning is required.

The shelf gives good yields both in open beds and under a film cover. Subject to the rules of agricultural technology, up to one and a half kilograms of berries can be harvested from one square meter.

Agrotechnics Strawberry Shelf

Strawberries The shelf cannot be called demanding, but in order to obtain a high-quality harvest, certain agricultural rules must be observed.

It must be remembered that this variety should be provided with shelter in snowless winters, as well as protect the root system, which is most vulnerable to diseases.

Features of planting and care

A well-lit area should be allocated for planting strawberries.... The preparation of the beds includes digging and removing weeds, as well as enriching the soil with minerals, manure or humus.

Care process for strawberries includes the observance of simple techniques:

  1. The soil should have a slightly acidic reaction.
  2. Plants should be planted from August to September.
  3. The spacing between the bushes should be at least 40 cm.
  4. The first feeding should be done in the spring.
  5. During the fruiting period, strawberries should be fed with potash fertilizers, chicken droppings or wood ash.
  6. Watering strawberries begins in April. Events are held every week until autumn. In the fall, watering should be halved. For watering, it is better to use a drip system.
  7. Irrigation procedures should preferably be carried out in the evening and use warm water.

To obtain a rich and high-quality crop, the Shelf should be watered regularly and abundantly, therefore drip irrigation is the best solution.

When digging a site, 6-7 kilograms of manure and 50 grams of mineral fertilizer should be applied one square meter. The preparation of the beds should be carried out 2 weeks before planting.

The shelf can be planted in spring, but the first fruiting will not occur earlier than in a year.

After harvest plantations should be cleared of damaged and diseased leaves, treated from parasites and diseases, organic and mineral fertilizers should be applied.

In snowless winters, the shelf should be covered with sawdust, spruce or special material.

To obtain an earlier harvest for the winter, film tunnels are built. This method speeds up the ripening of berries by 2-3 weeks.

Transplanting strawberries The shelf should be carried out in spring or autumn... And when grown in greenhouses, the procedure can be carried out in winter.

Planting strawberries in spring:

Reproduction methods

Polka strawberries are propagated by rooting aerial shoots (antennae) and dividing the bush (horns).

Rooting antennae

Mother plants must be at least 1-2 years old, have no signs of diseases and pests, as well as give stable yields of large berries.

In the spring, peduncles from such bushes are completely removed and leave no more than five strong antennae. On each tendril, 3 sockets are grown and planted in a permanent place.

The process of growing and rooting outlets is as follows:

  • young rosettes are pressed tightly to the ground, without taking them away from the mother bush. To facilitate the process of the subsequent transplant, you can bury a plastic cup filled with soil under each outlet;
  • by the end of July, young plants will root well and grow strong roots. At this time, the strawberries can be transplanted to a permanent place, carefully separating them from the mother bushes.

By winter, strawberries will have time to build up a good green mass, which will serve as additional insulation.

Dividing the bush

For this method, healthy three-year-old bushes are chosen:

  • the procedure is carried out at the beginning of spring or after harvest;
  • all peduncles are removed from the bush;
  • the plants are carefully dug up and cleaned of dried leaves and excess soil;
  • to facilitate the process of dividing, the roots can be placed in water, where they are cleaned and straightened;
  • the bushes are divided into several parts with a sharp, sterile knife. A rosette should remain on each piece. The lower part of the roots is trimmed;
  • the plants are placed in a manganese solution to disinfect the sections;
  • in spring, independent bushes are planted on prepared beds and covered with foil for better rooting. During the autumn division, the fragments are cleaned of most of the leaves and old roots, after which they are placed in the refrigerator until spring.

When the plants grow in the garden in spring, ready-made seedlings can be planted in a permanent place.

Diseases and pests

The shelf has strong immunity to most diseases, but often suffers from diseases of the root system and is affected by verticillium.

Gray rot

Damages plants in high humidity conditions and can destroy up to 80% of plantings. The disease manifests itself with putrid mold spots on the berries.

The leaves are covered with fast-growing spots of gray-brown color. All parts of the plant dry out quickly and the strawberries die.

As a preventive measure:

  • the rules of crop rotation should be observed;
  • keep plantings clean;
  • remove dry leaves in a timely manner;
  • mulch the aisles before fruiting;
  • before the growing season, treat the plantation with a solution of Bordeaux liquid;
  • after harvesting, spray with an insecticide solution.

When infected planting should be cleaned of damaged plants and treated planting with special chemicals. Transplant healthy bushes if necessary.

Verticillosis

The disease causes a fungus, affecting the vascular system of plants, which leads to wilting and death of the plant.

The first signs of the disease appear on the external state of the bush. It has an unhealthy appearance and stops growing. Later, the leaves begin to fall to the ground and the plant looks lethargic.

And if the foliage acquires a yellowish color with a pink tint, then it is no longer possible to save the strawberries.

Prevention of the disease is the destruction of weeds on plantations and the treatment of the soil with insecticides, as well as compliance with the rules of agricultural technology.

When infected, strawberry plantations are treated with fungicidal preparations, after removing heavily infected bushes.

The shelf is practically not damaged by parasites, but gardeners recommend monthly preventive treatments.

The shelf does not shine with an abundance of crops, but also does not require special maintenance... It is quite predictable - it will not burn out in the summer heat, and will survive the winter cold with minimal preparation.

Also, the Polka gives stable yields of berries with high indicators of taste and quality.


Strawberry variety Polka (Polka)

The shelf is a non-renovated medium-ripening strawberry variety. It was bred by Dutch breeders in 1977 by crossing the Induka and Sivetta varieties. Differs in good taste and excellent presentation of berries, high drought resistance and unpretentious care. Strawberries are suitable for cultivation in Central Russia, Ukraine and Belarus, popular in the Baltic countries.

The plant is of medium height, vigorous, looks very compact. Whiskers are abundant; in the heat, the number of whiskers decreases. The leaves are large, medium-wrinkled, bright green in color. A feature of the variety is that the leaf has four or five lobes. By the way, this varietal trait was passed on to the descendant of our heroine - Sonata (Polka x Elsanta). Strawberry flowers are white. Peduncles are located at the level of leaves, under the weight of the fruit they are laid on the ground.

The berries are conical in shape, sometimes with a flattened tip. The skin is bright red, shiny, at the stage of full maturity it acquires a dark brownish tint. Fruits, as they ripen, are evenly colored, starting from the sepal. The pulp is light red in color, dense, juicy, without voids, with a pleasant aroma. Berries of the Shelf have an excellent taste, it is predominantly sweet, but there is also a slight appropriate sourness. There are also notes of caramel in the taste palette.

Strawberries are versatile in use, especially good fresh, suitable for any kind of processing, and suitable for freezing. Due to the dense structure of the pulp, the berries of this variety perfectly tolerate transportation, do not wrinkle and do not flow, while maintaining an excellent appearance. It is worth mentioning that the Shelf is famous for its uniformity of fruit shapes, which makes it especially attractive to buyers in the market. But it should also be said that the fruiting of our heroine is unstable, and after the first harvest, the berries begin to shrink, so there is no question of evenness of fruits by weight.

The average weight of berries is about 30 grams, during the first harvest the indicator fluctuates at the level of 35-40 grams, the largest specimens weigh 50-60 grams, with subsequent harvests the weight gradually decreases, reaching 20 grams or less. It is worth saying that many gardeners are unhappy with the size of the berries of this variety, their weight often does not correspond to the declared one. However, the weight of the fruits is influenced by agricultural technology, as well as the age of the plants and the weather conditions of the season.

Strawberries ripen on average, around mid-June, but they can start bearing fruit earlier or later, depending on the growing region and weather conditions. The yield at Polka is average, one might even say very low - about 350-400 grams of fruit per bush, about 1.2-1.3 kg per square meter. Some sources state that the yield of strawberries can reach 2 kg per plant, but this information is very controversial and most likely incorrect. It should be understood that the variety was bred for a long time, moreover, it is not repaired, therefore it cannot compete with the modern "giants" of the strawberry market. And the yield of 2 kg per bush is already a very serious indicator, which not every "giant" can produce. In addition, according to the reviews of gardeners, our heroine is revered for her other characteristics, and the amount of harvest is not her dignity.

Plants are resistant to fungal diseases, including powdery mildew, and are also rarely affected by pests. Strawberries are moderately resistant to root system diseases. It is still highly desirable to carry out all the necessary preventive measures. Polka's winter hardiness is average; in regions with frosty winters with little snow, it requires good shelter. By the way, gardeners note that the variety is quite "tenacious" and is capable of recovering from various weather disasters, including after freezing in winter. What our heroine can bravely boast of is drought resistance and heat resistance. Even in the driest and hottest seasons, the variety feels very comfortable. However, it should be said that in such conditions the taste of the berries will deteriorate noticeably - it will become excessively sour. Also, voids can form inside the berries, and the fruits themselves will be smaller. To avoid these incidents, it is enough to simply provide the plants with regular abundant watering.

In agricultural technology, the Regiment is quite simple, but it has some peculiarities. And often gardeners refuse it, simply not being able to pick up a "key" for it. Consider the main nuances of growing and care in the list below.

  • Strawberries react extremely negatively to thickening, so the bushes should be planted at a distance of at least 30-35 cm from each other.
  • Planting is carried out in August, optimally at the end of July, if the weather permits - young, newly planted plants do not tolerate heat well, as well as cold.
  • The variety can be grown both outdoors and indoors. At the same time, under the shelters, the Regiment will begin to bear fruit a little earlier.
  • Strawberries are hygrophilous, do not skimp on watering. Just do not overdo it - excessive waterlogging of the soil threatens to increase the risk of infection of plants with fungal diseases, moreover, the berries can rot.
  • It is highly advisable to use mulch, as the fruits often lie on the ground, as a result of which they can begin to rot.

  • The variety does not need an increased amount of fertilizers, but nevertheless, regular high-quality feeding has a positive effect on the yield of the variety and the taste of the berries. Organic matter is introduced before planting strawberries and until flowering, then preference is given to mineral complexes, and special attention should be paid to them. The fact is that with a lack of micro- and macroelements in the soil, the palatability of the fruits can deteriorate significantly - the berries will become too sour and dry. Foliar feeding takes place.
  • A feature, and at the same time a disadvantage of the Shelf, is the rapid loss of varietal traits. So, the variety reaches the peak of its productivity in the first year of fruiting, the next year the yield decreases slightly, and in the third year it is completely nonexistent. Thus, it is advisable to grow our heroine only in a one- or two-year culture, and then renew the planting.Many gardeners, who neglect the rejuvenation of the plantation, complain about too low yields and outright trifles instead of normal berries on the bushes. Well, the problem has a very understandable cause.

Let's briefly summarize. Over the long years of its existence, this strawberry has managed to acquire a large number of positive reviews. However, we can safely say that at the moment the variety is considered obsolete. Productivity - not up to modern taste standards - breeders have bred specimens and tastier drought resistance - is not so important in the conditions of automated cultivation technology. But despite all this, not only gardeners, but also farmers continue to use the Shelf. Although it does not differ in stability, it does not require abundant feeding and painstaking care. Although its berries are not gigantic, there are quite a few of them on the bush, which ensures a satisfactory yield. Of course, for commercial purposes, it is better to look at a different variety, more productive and reliable. And for herself and her family, our heroine is quite suitable.


Features of the Polka variety

Polka strawberries are zoned for cultivation in the Baltic countries, Belarus, Ukraine, and the middle latitudes of Russia. The culture can grow in colder areas, but with the organization of a winter shelter.

The main nuance is the caramel flavor.

View creation history

The Polka strawberry variety was bred by breeders from the Netherlands in 1977, through the symbiosis of the Unduka x Sivetta varieties. Berry is over 40 years old, but it continues to gain popularity.

Bush and berries

Strawberry bushes are compact, not spreading, emerald leaves, with denticles at the edges. The plant forms a large number of peduncles, whitish inflorescences grow on them. There are practically no barren flowers, all ovaries are transformed into fruits.

The berries are scarlet, and at the stage of technical ripeness, they become burgundy. They are similar in shape to a blunt, shortened cone. They have a thin skin, but strong, when interacting with the hand, it does not stain. Pulp without voids, coral red, light in the center. Each specimen weighs about 50 grams. A lot of antennae are formed, but it is advisable to cut them off.

The variety is mid-season, the first harvest ripens by mid-June. Intense fruiting lasts up to 5 weeks.

Productivity and application of fruits

With proper care, favorable weather, about 1.5 kg of berries are harvested from the bush. When processed, they do not lose their shape, color. Compotes are prepared from them, frozen, consumed fresh. Jams and compotes become burgundy, fragrant. You can also make them strawberries Shelf jelly, candied fruits, jams. Some gardeners even dry the fruits, while their taste is not lost, but becomes even more expressive.


Landing features

The summer resident's joy is a fairly tall variety, it will require a spacious one, open to the sun's rays, but well protected from the winds. It is important that the land goes down easily, since the described culture loves moisture, but does not tolerate waterlogging. Strawberries feel best in the area where cereals and legumes grew last season.

Such strawberries prefer sod soil with an acidity level in the range of 5-6 pH. Before planting seedlings, the soil is fertilized with compost, or bird droppings. To loosen the soil before planting seedlings, the Joy of the Summer Resident, mulching with peat or humus is used.

Germinating seeds

The seeds of the variety can be germinated for seedlings in record time - even in early February, if there is enough light. The standard deadline is the first days of March. Strawberries are usually planted under glass or film, in plastic cups, to a depth of 2 cm. The distance between the seeds is 2.5-3 cm. The planting will take 12-14 light hours - in cloudy weather, the sprouts are illuminated with phytolamps.

Seedlings need full watering only from the moment the first leaf appears. Before germination - only daily spraying from a spray bottle. After "pecking" - once a week, after the leaf of the variety has blossomed - every 3 days. After the appearance of 2 pairs of leaves, strawberries are fed with a liquid mineral mixture with phosphorus and magnesium.

Transplanting seedlings

Seedlings Joy of the Summer Resident is transferred to the garden in the second half of April, when the soil warms up to 15 °. Before planting, strawberries undergo a procedure for trimming the roots - they should be as long as the width of an adult's palm. 3 days before the transfer, the seedlings are hardened in a cool place. The beds must be cut in advance, sand and peat are poured onto the bottom of each. For good rooting, strawberries need enriched soil.

Plants of this variety are planted with a maximum density of 4 bushes per 1 m². The ideal distance between plants, at which the strawberry feels comfortable, is 25-30 cm. The permissible row spacing of the Joy of the Summer Resident is 60-65 cm. The rooting process lasts 2 weeks - during this period it is important that the seedlings of the variety do not dry out and do not freeze at night.


Advantages of the variety

Among the undoubted advantages of the "Shelf" should be highlighted:

  • endurance and unpretentious care
  • resistance to diseases of powdery mildew, low susceptibility to gray fruit rot (yield loss less than 2%) and spider mite lesions
  • high productivity
  • excellent commercial and consumer qualities of fruits
  • the universality of their purpose.

Endurance

According to data from foreign sources, the "Shelf" is classified as especially winter hardy varieties suitable for growing outdoors under adverse weather and climatic conditions. Plant resistance to autumn and spring (during flowering) frosts is also noted.

In tests carried out in 2002-2006. Russian specialists at the collection site of the Kokinsky stronghold of VSTISP in the Bryansk region (where winters are often very cold and snowless), the variety proved to be moderately hardy in terms of the degree of freezing.

In regions with frosty (below −15 ... −20 ℃) ​​and snowless winters, strawberry beds require shelter with organic mulch and / or agrotex.

Variety relatively resistant to summer heat and droughts, tolerates shading safely. Based on the results of field tests carried out in 2006-2009. on the irrigated area of ​​the Samara Research Institute of Horticulture and Medicinal Plants "Zhigulevski Sady", during drought "Polka" weakly lays flower stalks and sharply reduces productivity (by 23-65%) compared to other varieties.

One of the most important conditions for obtaining good yields is abundant and regular watering during the flowering period and during fruiting (in dry weather). Experts consider it necessary to use drip irrigation systems.

Features of fruiting

The variety is distinguished by long flowering and extended fruiting. In terms of ripening, it is included in the mid-ripening group: the first harvest ripens closer to mid-June, active fruiting lasts up to 4-5 weeks, but by the end of the harvest, the size of the berries is almost halved (especially with insufficient watering).

On the bush, on average, up to 50 berries ripen, which allows you to collect from 300-500 g to 2 kg from each plant. The highest productivity is typical for young bushes, therefore, for commercial purposes, the variety is grown in a 1-2-year-old culture. It is recommended to update amateur plantings at least every 3 years. In the southern regions, bushes develop more powerful and taller, intensively build up green mass and form a lot of whiskers. Due to this, they thicken and degenerate faster. In the middle lane, the “Polka” strawberry, according to gardeners, does not grow and bear fruit as actively, but gives larger and sweeter berries.

The productivity potential of the variety, according to experts, is estimated at 8-9 points (out of 9).

With the breeding of the variety, problems usually do not arise. Plants give a sufficient number of daughter rosettes to obtain seedlings, methods of germinating from seeds and dividing bushes are practically not used.

Commercial and taste qualities of berries

The variety is considered large-fruited, but only the first fruits differ in the largest size and weight up to 35-40 g. In the process of fruiting, they become smaller and weigh on average about 20 g. Ripe berries are easily separated from the stalks, have a uniform, very attractive appearance due to a uniform dark red color (to burgundy or purple) with a glossy sheen and a neat rounded-conical shape.

The main advantage of the variety is the excellent dessert taste of berries, which earned the highest tasting marks of 4.6-4.9 points (out of 5). Most gardeners refer to it as extremely sweet (even when not fully ripe), with a caramel shade and a rich strawberry aroma. The pulp is juicy and tender, but dense enough, which allows transporting the crop without loss, as well as using it for all types of processing and freezing.


Agrotechnical rules

Strawberry Baby Elephant is really an unpretentious variety. But, as mentioned earlier, she is sensitive to lack of care: the quality and quantity of the crop is noticeably reduced.

In order for the Elephant Strawberry to grow as in the photo, the gardener must make a lot of effort. And you should start with the correct planting of strawberry seedlings.

Landing rules

The place for strawberry beds is chosen sunny and protected from drafts. It is impossible for the site to be in a lowland, since moisture can collect there, and for the Elephant, its excess is destructive.

Good strawberry seedlings have a healthy appearance, dense stems and long, branched roots. Plants with 3-4 true leaves are suitable for planting.

You can plant the Elephant in both spring and autumn - in order to choose the right time, the gardener must take into account the climate in his region. If the winters are not very harsh, snowy and no thaw, it is better to plant strawberry seedlings in the fall. So the Baby Elephant will have more chances to go deep into the ground and put down good roots. When planting in autumn, the first harvest of large berries can be expected already in the next season.

A month before planting, ammonium nitrate, humus, wood ash are introduced into the soil. If the acidity of the soil is elevated, it is necessary to reduce it by adding a little quicklime - Baby elephant does not like soil with a pH of more than six.

Two weeks later, the area under the strawberries is dug onto the bayonet of a shovel, having previously sprinkled superphosphate and potassium chloride over it. Now you can make holes for seedlings, leaving a distance of 20 cm between them. The row spacing should be convenient for the gardener, usually leaving about 80 cm. It remains to water the holes with warm water and plant strawberries, compacting the earth around its roots.

Care steps

You need to care for the Elephant calf variety carefully and regularly. The main steps for caring for strawberry beds should be the following:

  1. Frequent and abundant watering, because the Baby Elephant is very fond of moisture. It must be borne in mind that excess moisture can lead to rotting of strawberries. Therefore, it is recommended to water the bushes with drip systems. Water for irrigation is taken warm, and the time is chosen in the evening.
  2. To reduce the amount of watering, it is necessary to use mulch (straw, humus, peat, sawdust). Mulch will prevent the soil from drying out, prevent weeds and pests from multiplying. It is recommended to remove and burn the mulching layer in autumn, as it can become a source of bacteria and viruses.
  3. Large-fruited strawberries must be fertilized, otherwise the berries will be small and not so tasty. It is necessary to feed the bushes several times per season, while it is recommended to use mineral complexes in the summer, and use organic matter in the autumn-winter period. For the Elephant, top dressing with humus, compost, wood ash, potassium-phosphate complexes is good.
  4. To prevent infection of strawberries with rot and fungal diseases, it is recommended to treat the bushes with Bordeaux liquid or copper oxychloride solution. It is better to fight insects with the help of special chemicals. At the stage of fruit formation, "chemistry" is undesirable, it can be replaced with folk remedies (for example, vegetable oil + wood ash + vinegar + liquid soap).
  5. For the winter, it is better to mulch the elephant bushes with pine needles. This material perfectly protects the roots from freezing, allows air to pass through, allowing strawberries to breathe during thaw periods, and does not contribute to the reproduction of insects and infections.


Diseases

The shelf belongs to varieties with good resistance to common diseases.

The characteristic of the variety states that the plant is practically not damaged by powdery mildew and gray mold.

However, a significant drawback of the Shelf is poor resistance to diseases of the root system and verticillosis.

There are almost no downsides, to some extent it is unethical to focus on them. But I would like to emphasize the small "production costs":

  • the berries of the last collection are two times smaller than the first
  • you need to periodically update the landings, which is very uncomfortable
  • The shelf tolerates heat and drought, but the berries grow small
  • Bushes grow intensively over the summer
  • Swampy, acidic, saline soils are unsuitable for her.
  • The regiment does not always take root in the northern latitudes of Russia (Vologda, Leningrad regions, etc.)


Watch the video: Mis-Tre Orchestra with Walter Ostanek - Strawberry Hill Polka - Polka Varieties


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