Probably every gardener at the beginning of the new season asks the question: "Which varieties to plant this year?". This problem is particularly relevant for those who grow tomatoes in closed ground. After all, in fact, the tomato is not adapted for such conditions, and for that there are several reasons, which will be discussed below.
How to choose the best variety of tomatoes for a greenhouse made of polycarbonate, what is the peculiarity of growing tomatoes in greenhouses - this is the article.
What does a tomato need
For normal development, tomatoes of any variety require certain conditions:
- Sufficient sunlight. No polycarbonate greenhouse can provide 100% absorption of light by plants, because the walls of the greenhouse are not completely transparent. Part of the light absorbs the plastic itself, an even larger dose goes away due to the contamination of the polycarbonate. As a result, about half of the natural light remains in the tomatoes.
- A certain level of humidity. Yes, tomatoes love water - these plants need to be watered often and plentifully. But the increased air humidity is detrimental for tomatoes, and in the greenhouse it is about 100%. While tomatoes need only 65-70%. In such conditions, pathogenic microorganisms multiply very quickly, which leads to plant diseases and their death.
- Tomatoes do not like too high temperatures, in such conditions their pollen becomes sterile - the flowers are not pollinated. And in a greenhouse made of polycarbonate, it is often very hot, 30-degree temperature there is the norm.
To grow healthy tomatoes, you need to minimize the factors that harm plants. But in the greenhouse it is almost impossible to do this, so you need to choose special varieties of tomato for the polycarbonate greenhouse.
What grade is suitable for the polycarbonate greenhouse
Considering all the above, it is possible to determine the criteria that a tomato intended for a greenhouse must meet.
- To tolerate high humidity, that is to be tempered against diseases and viruses.
- Do not need a lot of sunlight.
- It is good to tolerate temperature drops that occur during the ventilation of the greenhouse.
- Match the size of the greenhouse. Indeterminantny varieties of tomatoes can be planted in tall greenhouses, and for small greenhouses with a sloping roof, tomatoes with compact bushes are more suitable.
- To be able to develop when forming a bush in one stem, since the limited space inside the greenhouse does not allow for the growth of bulky bushes with many side shoots.
- Have the ability to pollinate.
Many gardeners consider the variety to be one of the best tomatoes for the greenhouse. The plant belongs to the indeterminate, differs in fast terms of ripening - the first fruits can be collected already in 96 days after sowing seeds.
The height of the bushes reaches 2.5 meters, there are many side shoots. Therefore, the tomato must be stepchain, forming a bush and controlling the thickening.
They love "Mikado" and for excellent taste characteristics - this is one of the best-selling varieties of tomatoes. Fruits are painted in pink color, differ in large sizes - the mass of each tomato is 300-600 grams. In the section, the tomato resembles the flesh of a watermelon - the fracture is just as sugary. The pulp tastes sweet too, this variety contains a record amount of sugars.
The yield of this variety - 10-12 kg of tomatoes per meter.
The tomato is considered to be ultra fast, the fruits on the bushes ripen within 80 days. A distinctive feature of the variety is the white color of the fruit in an unripe condition. As they ripen, tomatoes first become orange and then red. Thus, multicolored fruits develop simultaneously on each bush. Such tomatoes look very impressive.
The weight of each tomato, on average, is 200 grams. By the end of the season one bush gives up to 30 tomatoes.
Probably the most fruitful of all varieties of tomatoes for a polycarbonate greenhouse. This tomato is grown for commercial purposes and on individual plots. The height of the bushes can reach 4.5 meters.
The plant can be formed into a tree, than successfully engaged in industrial farms. The crown of tomato tree is about 50 square meters, that is, the greenhouse for growing this variety should be huge.
The variety can bear fruit for 18 months, but for this to be heated in the greenhouse. For the year from each tree collect a record number of tomatoes - about 14 thousand fruits.
Tomatoes are small, oval-shaped, painted red. Formed by clusters, in each of which several dozen fruits. The main purpose of tomatoes - canning. The peel and pulp of tomatoes is dense, the size is small - they are great for salting.
Despite this yield, the variety can not be called capricious: the plant is excellent against diseases, does not require special care (except for tying).
If there is no heated greenhouse on the site, in one season the variety will not grow to the size of a tree. But the height of the bushes will still be impressive, high yields will also remain.
"Tiny Havroshechka F1"
Cluster variety of tomatoes for the greenhouse. The size of the fruit is slightly larger than ordinary cherry tomatoes, but tomatoes also grow in clusters, in each of which many fruits are sown at the same time.
The color of the tomato is red, the shape is round. The fruits are very tasty and sweet, suitable for canning, but very tasty and fresh, in salads and other dishes.
Bushes of this variety are compact, low. And the fruits, on the contrary, are large, the average weight of each is about 200 grams. Tomatoes have the form of a ball, slightly flattened, painted in a rich red color.
Tastes of fruits are high, they have a sufficiently high content of sugars and nutrients. Tomatoes are suitable for canning and for fresh consumption.
A hybrid with medium tall bushes. The fruits have a round shape and large enough. Tomatoes are very tasty, they can be consumed fresh and in salads. However, on each bush you can find several not so large fruits that will crawl through the jar, so the variety can be used for canning.
The taste of tomatoes is very gentle, pleasant. The flesh is juicy and aromatic.
Very tasty greenhouse hybrid. Mature tomatoes are painted in raspberry color, have a fairly large size. Tastes of tomatoes at a height - it is customary to use it fresh or added to summer salads.
Nutrients and vitamins in the fruit quite a lot. These tomatoes are good for diabetics, children or the elderly, so they are often processed for dietary nutrition.
Tip! Tearing fruit from the bushes should be carefully - their delicate skin and flesh can crack. You should not over-ripen tomato variety "Rosemary".
The plant belongs to the determinant mind, the bushes are quite compact. With each square meter planted with this variety of tomatoes, you can remove about four kilograms of tomato.
Ripening of tomatoes occurs within 120 days, which makes it possible to classify the variety as mid-season. The weight of each fruit is about 500 grams, so the fruits are not suitable for whole-canning, but they are very tasty in salads and snacks.
A strong trait of the variety is resistance to fungal diseases.
Large-fruited variety belonging to the determinant group of tomatoes. Fruit weight can reach a kilogram, but most often there are tomatoes weighing about 300 grams.
The taste of the fruit is very sweet, the fruit is fragrant and juicy. The color of the tomatoes is red-pink, the shape is a flattened ball. The yield of the variety is quite high - up to eight kilograms per square meter.
"King of the Orange"
This variety of tomatoes is indeterminate, tall plants, need to be tied up. Tomatoes ripen by the 135th day after sowing seeds for seedlings.
The color of the tomatoes is bright orange, the shape is elongated, the weight of each fruit is about 600 grams, the taste of the tomatoes is very sweet and juicy.
The hybrid grade selected in Russia especially for cultivation in greenhouses. This tomato belongs to the varietal varieties - the berries are sown in clusters, each of which contains 8 fruits.
Fruits ripen early, can be stored for a long time, are well transported, are not prone to cracking. The plant is opposed to the tobacco mosaic virus and several other diseases dangerous for tomatoes.
Tomato refers to the medium early, the first fruits ripen by the 110th day after planting seeds for seedlings. The plant is indeterminate, the bushes are tall and powerful.
The fruits are interesting primarily for their unusual shape - they are heart-shaped, red, rather large - about 350 grams.
Taste qualities of tomatoes are good, most often, they are used for fresh consumption. The yield of the variety is also quite high - about 9 kilograms per meter of the greenhouse.
Attention! The grade "Budenovka" is selected by domestic scientists especially for cultivation in the closed soil. The weak feature of this tomato is low resistance to viruses and diseases. Therefore, plants should be regularly inspected and processed.
The hybrid variety is considered to be one of the most high-yielding tomatoes for polycarbonate greenhouses - a maximum of 17 kg of tomatoes can be harvested from one square meter.
The variety is determinant, the height of the bush reaches 1.5 meters, the stems are powerful, there are stepchildren. The bush must be formed, it is better to leave one stem, sending it to the growth of the lateral process.
Tomatoes are red, round, medium size. The mass of each tomato is about 100 grams. These tomatoes are convenient to use for canning in general.
Review of tomato "Blagovest F1"Seleznev I.A. 56 years old, the city of AbakanSemena bought this hybrid last season. I needed a tomato for growing on the balcony - bribed the height of the bush and high yields, as well as small round fruits that are perfect for salting. Seed germination is very good, the plant itself is strong, not prone to disease. For the entire season, only calcium deficiency was observed, which manifested itself in top rot. The first tomatoes ripened in early September, moreover, that the seedlings sowed the seeds in mid-April. Tomatoes ripen in bunches, their mass is from 40 to 70 grams, the taste is very good. On the whole, I am satisfied with the variety, but it is better to grow Blagovest in a greenhouse - it’s close on a five-meter bush on the balcony.
Rules for growing tomatoes in closed ground
Knowing about the features of varieties intended for greenhouses, you can derive some rules for the care of such plants:
- disinfect the soil and wash the greenhouse before each new season;
- regularly ventilate the greenhouse, not allowing too high temperature and humidity inside it;
- buy self-pollinated varieties of tomatoes or be able to pollinate flowers with their own hands, because there are no bees in the greenhouse;
- regularly inspect the leaves and fruits for infection with rot or other disease;
- plucking tomatoes slightly before their full ripening - this will accelerate the growth of the next fruit.
These simple tips and reviews of experienced gardeners will help each novice to decide on the best grade of tomato for his greenhouse, and for an experienced farmer to find a new, unique sort of tomato.