- Authors: Horal Jiri, Klapste Petr
- Year of approval: 1997
- Ripening terms: mid-season
- Bulb weight, g: 40-93
- The form: rounded
- Dry scales: yellow
- Coloring juicy scales: white
- Density: dense
- Taste: semi-sharp
- Disease and pest resistance: resistant to major diseases
This onion variety is in great demand among gardeners. It allows you to get a good harvest. At the same time, the species is considered unpretentious in care, resistant to infections and harmful insects, to cold climates.
Description of the variety
Olina is a mid-season onion. Compared to other species, it tolerates the winter season much easier, it is better stored. Also, this bow does not shoot. The variety is highly ripe. Olina was created as a result of Czech selection. The species was approved for use back in 1997.
Characteristics of the appearance of plants and bulbs
The fruits are round. Each bulb is medium in size. The average weight of vegetables is from 40 to 93 grams. The color of the dry scaly layer is yellow. The juicy scales are white. Ripe onions are quite dense.
This variety is medium-nesting. Moreover, in one such nest there are 2 or 3 bulbs. The fruit contains useful ascorbic acid, vitamins, pectins, organic acids and sugars. All bulbs are aligned, keeping quality is high. They are distinguished by their high transportability, they can be transported even over very long distances.
The aboveground part of such a culture has a rich light green color. Her leaves are tubular. A light waxy coating can be seen on their surface.
Purpose and taste
Ripe onions have a semi-sharp taste, pleasant. Olin is a universal variety. Ripe bulbs can be eaten fresh. They are also often used in the preparation of various dishes, blanks.
You can use not only the bulbs themselves, but also the aerial part of the plant. It is also consumed raw. Greens are taken for the preparation of various salads. This species is grown both for personal consumption and for sale.
Maturation
The Olin onion variety is considered mid-season. When growing a plant from seed material, from the moment of germination to the moment of mass lodging of the feather, an average of 67-96 days pass, when grown from seedlings - 60-87 days.
Yield
Olina boasts a high yield. When grown from seeds in the Central Region, you can collect from 67 to 149 centners per hectare. When growing vegetables from sevka in the Middle Volga region, they collect from 268 to 310 centners per hectare of land. It is important to note that the yield can be increased by growing the vegetable with sevkom.
Growing regions
Olin onion mainly grows in the Volga region and in the Central region.
Growing and caring
Olin is recommended for breeding in an annual culture from seeds and a two-year culture from seedlings. The cultivar will grow best in fertile soil with neutral acidity. It should not be clogged with plant debris. Otherwise, the development of the bulbs will be greatly slowed down.
Do not plant this type of onion on clay and sandy soils, on soils with a high nitrogen content. Otherwise, the harvest will be very poor. Remember that the cultivar prefers well-lit, elevated areas on the plot. The culture is very demanding on sunlight, but at the same time it is difficult to tolerate heat. Just like other varieties, Olin will need regular watering.
In addition, the plant needs to be fed. Urea, potassium salt, phosphorus compounds are used as fertilizers. Remember that this onion does not react well to nitrogen.
Since the onion is an unpretentious and cold-resistant plant, it can be planted both in spring and autumn. It is necessary to properly prepare the planting material, competently prepare the garden bed and determine the timing of planting.
The bow is not as unpretentious as it seems. For good growth, you need fertile soil, quality care and nutritious fertilizers. Without top dressing, the bulbs will grow small, and the greens will not be lush. At different stages, it should be fed with different substances. The vegetable needs organic and mineral feeding. A good result for fertilizing onions is the use of folk remedies.
Disease and pest resistance
Olin onions are considered to be quite resistant to major diseases. But it can still be affected by powdery mildew. In this case, yellow spots are formed on the leaves. Over time, a white-gray bloom forms on the aerial part, the plant stops developing and dies without proper treatment. To get rid of powdery mildew, you can carry out treatment with chemicals ("Thanos", "Topaz", "Fitosporin", "Artserid").
Also, this onion is sometimes affected by root rot. In this case, yellow spots of different sizes also appear on the leaves. Copper sulfate is used to combat fungal diseases (2 tablespoons per 20 liters of water). It can be combined with laundry soap for a more effective result.
Onion fly often settles on plants. The insect lays the larvae on the leaves. They eat into the vegetation itself, thus slowing down its development. To destroy the pest, mulching is carried out, and then treatment with a chemical preparation (Fitoverm).
Such onions can also be damaged by nematodes. In appearance, they resemble small worms that actively feed on plant juices. The appearance of thrips on the culture leads to the fact that the scaly surface on the bulbs becomes wrinkled, and the aboveground part turns yellow. To combat these parasites, ready-made chemical preparations are also used.
Despite the fact that the onion is a very useful plant, capable of repelling and killing many microbes and bacteria, it itself is often damaged and suffers from various misfortunes. Diseases and pests of onions can significantly reduce the yield. It is necessary to correctly determine the presence of this or that disease and take appropriate measures in time.
Review overview
Most gardeners spoke positively about Olin's onion. Separately, it was noted that this variety has a high yield, excellent germination.
Also, many have noticed that ripe bulbs have a pleasant juicy pulp, excellent taste. They are stored for a long time (6 months). The fruits are large and even, their appearance is attractive. Some said that the Olina variety develops and ripens very quickly (no more than three months).