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The State Register of Breeding Achievements of Our Country includes 400 varieties of onions. In a temperate climate with cold weather characteristic of winter, it is advisable to grow turnips from sets. Domestic vegetable growers consider the Rumba hybrid onion to be the most suitable for planting under winter.
Inference history
The Rumba variety is a product bred by breeders of the British-Dutch company Allium Seeds UK LTD. The company has a narrow specialization: it is engaged in the development of onion hybrids for industrial production and farms. In a short time, the new product gained popularity not only in the UK, but also in many European countries.
In 2014, the Rumba variety was included in the register of breeding achievements of the Federation and recommended for cultivation in the Black Earth Region, the North Caucasus region and more northern regions of the country.
Description of Rumba onion
Rumba belongs to the varieties of onions of medium ripening. Garden culture is a smooth spherical bulbs with a dense golden-red husk. The number of covering scales is from 4 to 6 pieces. Bright green feathers are covered with a bluish glossy coating. On average, the mass of the bulb is 100-225 g, but under favorable conditions it can reach 500 g.
Characteristic onion-sevka Rumba
Like many hybrid varieties, the Rumba onion has a number of features that are the result of targeted selection. Taste, yield, shelf life and versatility of use are considered significant commercial qualities of horticultural crops.
Taste
The flesh of the Rumba onion is white and very juicy. In its raw form, the variety has a pronounced spicy-sweet taste. Like other varieties of onions, Rumba contains a rich complex of vitamins.
Rumba onion yield
The Rumba variety is high-yielding. A crop grown for mass consumption brings 150-300 centners per hectare. In particularly favorable conditions, the yield can reach 500 c/ha.
keeping quality
At the time of harvest, approximately 94% of the heads are ripe. To reach the final maturity, the onion is kept for 3-4 weeks. The harvest cleared from the ground is sorted, choosing damaged and deformed bulbs. Like all yellow types of onions, the Rumba variety is excellently preserved for a long time. Its commercial qualities remain unchanged for nine months. Subject to a comfortable microclimate, the keeping quality of Rumba onions approaches 98%.
The following conditions are considered favorable for preservation:
- temperature from 0 to 3 0WITH;
- darkness of the room;
- lack of a heat source in the immediate vicinity;
- constant ventilation.
When preserving the crop on an individual farm, it is undesirable to keep onions in the vicinity of other vegetables. For long-term storage, the heads should be placed in perforated containers or cardboard boxes. Also effective is the method of storage that has been used for centuries: in hanging nets or linen bags.
Application
Rumba onions are widely used in cooking in the preparation of meat and fish dishes, side dishes, various salads. Housewives add slices to canned blanks for the winter to give a spicy flavor. Exotic recipes for onion jam and onion in wine are popular, where a fragrant vegetable acts as the main ingredient.
Growing regions
The distribution area of the Rumba variety is wide: all areas located in the subtropical, temperate climatic zones. Vegetable culture is recommended for cultivation in the northern regions. When cultivating in places with a cold climate, slight yield losses are observed. Slightly acidic sandy and loamy soils are most suitable for growing Rumba onions.
Advantages and disadvantages
Onion Rumba has excellent taste. The hybrid crop is resistant to cold, which makes it possible to grow it in most regions of the country.
Pros:
- unpretentiousness, care for planting plants is elementary simple;
- high yield;
- lack of propensity to shoot;
- the formation of large, strong heads.
Cons:
- the need for loose nutrient soil, depleted and heavy soil is the reason for crushing the heads;
- susceptibility to infection with peronosporosis, neck rot, mosaic, nematode.
Peculiarities of growing
A significant advantage of the variety is the possibility of its use for both winter and spring planting. At the same time, agricultural technicians warn that onions should not be planted in the same place for more than 3-4 years.
In the first year, onions are sown with seeds. The resulting sowing for the next season is planted to produce onions.
Experienced vegetable growers are advised to focus on the following planting dates:
- southern regions – the end of March or the beginning of April;
- central Our Country – mid-April;
- regions of Siberia and the Urals – the beginning of May.
Winter crops are planted three weeks before frosty weather sets in. In the south, this time coincides with the beginning of November, in other regions it falls on mid-October.
Seeds can be sown directly into the ground or cultivated by seedlings. When preparing planting material, the nigella is treated with a weak solution of potassium permanganate, soaked in Zircon or Epin to stimulate growth. Rumba seeds are germinated in a damp cloth, placed in a warm place.
The dried nigella is laid out in grooves at a distance of 25-30 cm. When planting in open ground, mulching is carried out or the bed is covered with agrofiber. Sevok is treated only with a solution of manganese, the stimulant is not used. Small bulbs are planted to a depth of 5-6 cm at a distance equal to the length of the foot. At the beginning of growth, the Rumba culture needs abundant watering, and subsequent irrigation is organized as needed.
Diseases and pests
Garden plant is resistant to infections and pests. Rumba shows a high level of immunity to rust, fusarium, yellow dwarfism, white rot. Downy mildew (peronosporosis), neck rot, and mosaic are considered dangerous for the variety. Also, onions can suffer from nematodes.
Conclusion
Rumba onion occupies a special place among other hybrid forms. It has a high yield, resistance to diseases and pests. Summer residents, farmers and consumers appreciate the variety for large heads, which retain excellent quality for a long time, and a spicy, spicy-sweet taste.