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Old November 30, 2012   #30
maf
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Robot translated text from Andrey's link (http://sadoved.com/3798-saraevskie-t...-nasledie.html :
Quote:
Sarajevo tomatoes: a remarkable legacy


Spring frosts in many areas there are up to June, and often early planted tomato seedlings die. Help avoid this kind of Orenburg breeder Paul Sarajevo, which for decades led the work on breeding tomatoes for resistance to cold.
The main thing - the wind and moisture
Cold-resistant varieties can be planted seedlings much earlier than usual and, respectively, before a crop. And the use of film shelters accelerates ripening and significantly increases productivity. However, speaking of Sarajevo resistance varieties to frost, you should know that this is only possible at low humidity (dry air) and windless weather.
For a long time scientists advised growers evening and night watering as effective against frost. Similar recommendations are found in the literature and now, but this is false. Everyone knows that a man in wet clothes is much colder, especially in windy conditions.
Evaporation causes cooling fluid, and along with it - the cooling of the body. Hypothermia can be even at zero temperature, if increased humidity. Wet surface gives four times more heat than dry.
Gardeners necessarily consider when early spring transplanting two main factors: humidity and wind.
After planting, water the seedlings need a time, and not to do this until there is no danger of frost.
In the period after transplanting until it settle down, the plants decreased resistance to cold, so the seedlings should be planted with minimal damage to the root system (eg pots) that the period of survival was minimal. When growing seedlings should be periodically from the moment of its emergence exposure nighttime freezing temperatures, ranging from a few minutes hardening and increasing it to a few hours. When planting in the ground need to protect seedlings from wind any available material.
Most hardy varieties
Spiridonovskaya. Undersized, standard, precocious. The fruits are small, up to 60 g, red, suitable for canning. From germination to early maturation under favorable conditions, is 80-90 days. Resistance to low temperatures was confirmed by the Institute of Biology, Karelian Branch of the RAS. When tested in young seedlings survived four frozen to -14 °.
Orenburzhets. Undersized, standard. Red fruits, weighing 80-100 g, good taste, universal purpose. Endured three consecutive freeze: -5 °, -7 °, -10 °.
Kemerovets. Undersized. Pink fruits weighing up to 100 g, high commodity and taste, universal purpose. Withstood freezing -7 °, -10 °, -13 °.
0-33. Srednerosloe. The fruits are large, up to 200 g, flat-round, red. Beginning maturity - Mid-July, the yield per bush - more than 6 kg. When tested survived two freezing and one -9 ° -7 °.
Stepniak 50. Srednerosloe. Red fruits, weighing 30-50 g, rounded, smooth, multi-purpose. Is resistant to temperature variations. Went through five freezing to -10 °.
I-3. Average height, very early, in good years the fruits ripen in late June. High-yielding. Fruits are flat-round, red, weighing 100-200 g when tested went through five frost from -6 ° to -11
Siberian. Srednerosloe. Fruits are flat-round, red, large, fleshy, high taste. Variety is very crop. When tested withstood seven frozen to -10 °.
Lemon. Tall, late-maturing. The fruit shape and color to its name, weighing 70-80 g, hang huge brushes, very harvest. The fruits are fleshy, well-kept, suitable for canning. Through three freeze to -10 °.
M-16. Tall, late-maturing. Fruits are very beautiful shape, good presentation. Weighing 200-300 g, fleshy, good taste, well kept. Tests: one frost -3 °, two - on -10 °.
Tomato F1RR. Fruits bright red, flat-round, multi-chamber. The pulp is fleshy and juicy, with a high sugar content, has amazing taste. With proper care and rationing of the ovaries in the brush can grow fruits record up to 2 kg! The plant is vigorous, indeterminate. Fruits ripen 130-140 days. Juice of them get a very thick, well and quickly boil down to the consistency of a paste, and one fruit salad can be prepared for the whole family.
MA Litvinov, p. Novoaleksandrovka Orenburg region.
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