Preparations efficiency based on seaweed in the grafted grape seedlings production

The purpose of the study is to determine the effectiveness of the use of preparations based on seaweeds at different stages of the production of grafted seedlings of grapes of technical varieties. The objects of research are fertilizers based on seaweed Beres and Cultimar, grafted seedlings of grapes of technical varieties Sibir'kovyj, Stanichnyj, Kaberne Sovin'on, Cimlyanskij chernyj. There were 2 experiments: 1 - study of the effectiveness of pre-grafting treatment of the graft components (graft, rootstock, graft + stock) with Cultimar; 2 - study of the effectiveness of foliar application of the solution of the preparatio Beres. It was found that the pre-grafting treatment of the graft components increases the intensity of callus formation of the grafts on the 15th day in comparison with the control by 20.0-40.0%, and the opening of the eyes - by 28.3-45.0 %. The survival rate and yield of seedlings during the pre- grafting application of Cultimar increased by 10.0-23.3 % in Kaberne Sovin'on and by 16.7-25.0 % in Cimlyanskij chernyj. An increase in the yield of seedlings is directly related to an increase in the intensity of growth processes analyzed in the development of an annual shoot, especially its leaf area, which increased to the control by 20.7 % in the Cimlyanskij chernyj variety and by 48.8 % in the Kaberne Sovin'on variety. The application of complex fertilizers by the foliar route had a positive effect on the increase in: maturation (by 45.7-47.5 and 23.5-28.7 %; НСР05 - 9.0 and 10.5), growth diameter (by 0.2- 0.9 and 0.2-1.8 mm; НСР05 - 0.2 and 0.1), leaf area (by 198.0-775.7 and 1200.5-1976.0 cm2; НСР05 -192.9 and 302.7) for varieties Stanichnyj and Sibir'kovyj, respectively. Intensive development of plants provided better, in comparison with the control, survival rate (higher by 5.7-18.6 and 16.6-25.7 %; НСР052.6 and 2.4) and the yield of seedlings (higher by 4, 9-15.8 and 14.2-21.9 %; НСР05 = 3.2 and 1.8) for varieties, respectively.