Tomato Irina

Hybrid tomato Irina - universal, suitable for planting in open ground or in greenhouses with a film cover. It is successfully cultivated in the conditions of a personal subsidiary farm, can be grown for commercial purposes, since it has good commercial qualities, does not wrinkle during transportation. And also found under the name Irina F1.

A tomato hybrid was obtained in 2001 by the breeder Yu.I. Panchev from NITSSA, the author of more than 110 original forms of solanaceous plants. The application for admission was filed in 1999.

A powerful bush has strong stems 100-120 cm high. The hybrid's tendency to shoot and leafiness is above average. Leaves are green, not too large. The hybrid is determinant, it is not required to control its growth.

Fruits weighing 110-120 g are classified as large. Skin coloration before maturity has a light green tint. In a ripe fruit, it is red, the tomato itself is flat-round. Tomatoes are collected in bunches of 5-6 pieces. Under the skin there is a dense pulp containing up to 5.5% dry matter.

The tomato has a bright rich taste, ripe fruits receive high tasting ratings when eaten fresh.

The fruits are harvested from July 1 to August 20. The tomato is mid-season, ripening is limited to a period of 93-95 days.

The harvesting volumes are up to 9 kg / sq. m. In a film greenhouse, these figures can be much higher.

The breeder advises sending the seeds to the ground on March 10-20. In this case, the plant will have about 60 days to grow and develop. The bushes are transferred to a permanent place after the beginning of flowering, from about 10 to 20 May.

The optimal arrangement of plants in the garden or in the greenhouse according to the scheme 70x60 cm.

Tall shoots must be tied up. Formation is carried out in 1 or more stems. Since the hybrid is of the intensive type, it needs good care for successful and abundant fruiting. The growing season can be extended by moving the growth point from the central to the lateral shoot. Formation into 1 stem will result in an earlier harvest.

Sowing for seedlings is carried out in a substrate of 6 parts of sod land, 3 humus and 1 sand, mixed with superphosphate, ammonium nitrate, potassium sulfate.The seeds are pre-soaked for 10-12 hours in a weak 1% manganese solution. To prevent rot of the root system or stems, it will be useful to water the seedlings with a solution of 15 ml of "Previkur" in a bucket of water with a break between treatments in 28-42 days. The seeds are covered with peat mulch and foil.

Seedlings need watering in the morning. First from a spray bottle, then a watering can. The pick is carried out after the appearance of 2 true leaves.

Growing a hybrid of tomatoes Irina is carried out according to the standard scheme, but taking into account individual characteristics. He needs sunshine in large quantities. This should be taken into account when choosing a planting site in the open field. With greenhouse cultivation, it is imperative to normalize the air humidity in the range of 50-60%. This factor is most significant during the period of flowering and the formation of ovaries on the bush.

The choice of soil for planting is recommended to be made in favor of sandy loam and light loamy. It is recommended to saturate soils poor in composition with humus and nutrients. In the fall, phosphorus and potassium are laid in the preparing ridge. In the spring, during the formation of furrows, nitrogen fertilizers are applied. It is better to take complex solutions with phosphorus, immediately presented in liquid form.

Then nitrogen fertilization is repeated after 14 days, at the stage of formation of the first brush, with the beginning of flowering. Then a water-soluble complex with potassium is given with the same frequency. Foliar dressing will be needed already during the period of browning of the fruit.

It is important to monitor the thickening of the plantings. Abundant foliage blocks out sunlight, preventing tomatoes from ripening on time. Excess branches are thinned out at the same time as the stepsons are removed. Plants do not need frequent watering, but moisture should be supplied to the roots in sufficient quantities. It will be necessary to maintain an interval of 3-7 days using a sprinkler or drip irrigation technique.

To get a bountiful harvest, you need to weed and loosen the soil every week. After that, a layer of natural mulch is renewed in the beds. Sawdust, clean straw, or peat will do. When transplanting into the ground, it is imperative to tie it to a trellis or individual stakes of sufficient height.

Irina is a tomato with high resistance to late blight. And also the hybrid has immunity against the main complex of diseases typical for nightshade crops. Practically does not get sick with fusarium and verticellosis, TMV.But the hybrid is vulnerable to cladosporiosis - fungal brown spot. It is necessary to fight the disease with the help of fungicidal preparations. A solution of copper sulfate or colloidal sulfur, as well as ready-made preparations "NeoTek" or "Bravo" are suitable.

As preventive measures, regular ventilation of the greenhouse, preliminary spraying of the soil with chemical fungicides can be used. It is important that the lower leaves are high above the ground, not touching it. For prophylaxis purposes, tomato bushes can be sprayed with the fungicide Fitosporin-M every 14 days.

Pests do not actively attack greenhouse plants. But it is worth taking care of the appearance of Colorado potato beetle larvae, spider mites or caterpillars of whitefly butterflies on tomatoes. Here insecticides "Iskra", "Aktara" and the like are used.

The hybrid is cold-resistant. It tolerates late frosts well even without shelter. Outdoors, it is recommended to use agrofibre or mesh as a substitute for mulch.

Many residents of the southern regions of the country have experience in growing a hybrid of Irina tomatoes. It is praised for its productivity, high yield even in the open field. It is noted that the fruits ripen quite early, during the entire growing season they do not show signs of disease. The taste properties of tomatoes are highly appreciated both fresh and when canned or processed.

The disadvantage of the hybrid is called its demanding care. Without the correct implementation of agrotechnical measures, one cannot count on bountiful harvests.