The Rosanna F1 tomato is a hybrid, bred by Russian breeders. The variety has a number of advantages.
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The tomato hybrid "Rosanna F1" is mid-season, determinate, productive, large-fruited. Shows resistance to many tomato diseases. Rosanna F1 tomatoes are grown in open ground. Tomatoes of this variety can be grown all year round in heated greenhouses.
Description of the variety: The height of the bush of this hybrid is up to 0.7-0.8 m. The stem is strong and stable. It is necessary to form a stem as the plant grows into 1-2 trunks, which will increase the yield of the bush. Since the fruits are quite large, it is necessary to tie the trunk to a support. The leaves are light, and when the plant gains growth, they become dark, slightly corrugated.
The plant is tall and spreading, so planting a tomato bush is done using the 50x40 cm technology. Per 1 sq. m plant up to 4 plants. The period from seed germination to fruiting of the plant is 95-105 days. The first tomato will ripen in 90 days!
Resistance of the tomato variety "Rosanna" to diseases:
| № | Type of disease | Degree of stability |
| 1 | Verticillium wilt (Va, Vd) | high |
| 2 | Fusarium wilt (Fol 1–2) | high |
| 3 | Cladosporiosis (Ff) | high |
| 4 | Tomato mosaic virus (ToMV) | high |
| 5 | tomato nematode (Mi, Ma) | high |
Characteristics of the fruit of the Rosanna F1 tomato: medium, pink, round in shape, with slight ribbing of the barrels, fleshy, sugary tomatoes at the break. The skin of these tomatoes is tender but dense. Tomatoes of this variety do not crack in the garden and when transported over long distances.
They have a good delicate taste and pleasant aroma. Used fresh, in soups and salads. Small fruits are preserved in their entirety, and also processed into juice, puree, and sauce. This variety has positive reviews. Commodity quality, as well as taste and transportability are noted.
The clusters of this hybrid form an average of 6 fruits. Their sizes are the same, 150 - 200 grams. The yield of tomato "Rosanna F1" is over 12 kg per 1 sq. m.
How to triple your tomato harvest without chemicals
To improve your harvest without using chemicals, you need to be well prepared for the gardening season. One of the conditions for large harvests is a properly organized garden bed. The beds should be carefully prepared for planting seedlings. Warm beds have worked well: cardboard is placed at the bottom of such a bed. Then a layer of sawdust about 10 cm is loaded on top. Hay or fresh grass is placed on the sawdust in a layer of 30 cm and compacted.
Sifted humus or compost mixed with ash and soil from the site is the top layer of the bed. It should be approximately 20-30 cm, but more is possible. Warm beds only need to be watered. They work great for 3 years without adding any additional fertilizers.
It is better to plant seedlings in a permanent place when the seedlings reach 25-30 cm. It is impossible to allow the seedlings to overgrow and thin out, this will lead to a loss of bush productivity.
For 1 sq. m, it is optimal to plant from 3 to 5 tomato bushes. Thickening of tomato planting also leads to loss of yield.
Watering is carried out only with warm water, since sudden changes in temperature provoke a decrease in plant tone and disease.
