Medern methods of Phylloxera-resistant Rootstock Vine growth and formation

The results of testing modern methods of phylloxera-resistant vine growth and formation, which is considered to be one of the important issues in viticulture, is discussed in the article. Vegetation trials were conducted in 2017-2019 in Georgia, Inner Kakheti, on the South-eastern slope of the Caucasus Mountains, where alluvial soils are found. Phylloxera-resistant hybrid rootstock Berlandieri X Riparia Kober 5BB was selected for the field trials. Growth and formation process of the vine took place in the unusual conditions for phylloxera-resistant vine, using cordon systems. Six variants were tested, low trunk, unilateral and bilateral cordons as well as vertical cordon. The most widespread form in the viticultural region - “head trained form without trunk” - was selected as a control variant. The findings have been analyzed and reviewed according to the years. Conclusions have been drawn from the findings and the best variant for the production of high quality, abundant vine shoots has been selected.