SUPPORTING YOUNG GRAPE SEEDLINGS
I got a grape seedling.
When planting, he took root well, for the winter I insulated him, and in the spring the buds did not open. I poured a bush with a growth regulator, a green shoot has grown from below. Again in the winter the bush was well insulated, and again in the spring the same story with the buds was repeated. What could be the reason for the failures?
I. Semushkina Republic of Tatarstan
The first is hardening and rotting vines and kidneys under a winter film or similar shelter in the early spring. Many growers forget to make vents in a shelter for ventilation, or even remove it with the onset of warm days.
Other reasons may be related to the composition of the soil, improper planting, incorrect agricultural technology. But the most common cause of failure is the non-ripening of the vine. It is especially difficult to grow the shoot to a ripe state in the first year after landing on a permanent place.
In the southern zones of traditional viticulture, starting from the Rostov, Volgograd regions and to the south, vines mature better than in the more northern regions. This is due to the earlier spring, temperature stress (this term should be understood as the number of days with temperatures above 28 ° C), the amount of heat, etc. The better the shoots ripen, the easier they tolerate the winter period.
Famous winegrowers T.I. Kalmykova, L.N. Gordeeva, A.M. Negrul argue on the basis of experiments on photoperiodism (that is, the reaction of plants to the ratio of light and dark periods in the daily cycle) that in the conditions of a long day, the growing season increases, and long and poorly ripened shoots are formed. Short days shorten the growing season, the efficiency of photosynthesis increases, the ripening of berries is accelerated, the percentage of sugar in them increases and acidity decreases.
That's why when choosing varieties for your garden, you should give preference to varieties with well-ripening vines.
For example, vines of the following varieties and hybrid forms ripen well even in extreme years: Don Agate, Russian Purple, Early Russian, Russian Korinka (seedless), Muromets, Pineapple, Zarif, Sustainable Muscat, Augustovsky, Lyubava, Victoria, Church Bells, Delight, Original, The vine of the world, The vine of Vavilov, Cosmonaut, Timur, Space, Kodryanka.
The vine of wine (technical) varieties is less whimsical in the sense of aging. These varieties themselves can be divided into 3 groups.
The first group - withstanding frosts up to 25 °, they require light shelter for the winter (Honey, Stepnyak and DR) ..
The second group - frost resistance minus 27-30 °, it is enough to lay them on the ground for the winter and pin them, but not to cover. Such varieties can be called conditionally covering: Festival, Moscow Sustainable, Flower, Pifos, Slava, Kazachka, Donchak, Golden Muscat, Northern Cabernet.
Wine varieties that are resistant to frosts up to 35 ° can also not be covered, and in the southern regions they can be left wintering on the trellis altogether: Northern Shcholistik, Marinovsky, Taizhny, Taiga emerald, Slavyanskiy, Sharova Riddle, Bruskam.
We also recommend reading: How to grow and plant seedlings of grapes in spring
GRAPES IN WINTER - VIDEO
© Author: L. ROMANOVA, agronomist
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