## 3 Results and Discussion
### Study of the Effectiveness of the Action of CAP and PTS on the Grafts
For samples exposed to PTS solutions with a concentration of 1:5 (20%), the decrease in resistivity was 20%; when using a solution of 1:10 (10%), the decrease was 15% (Figure 12). The use of these types of impact on fresh cuts of scion and rootstock cuttings during winter grafting by the method of improved population shows that the survival rate of the obtained scion-stock combinations of the \"Revna\" sweet cherry variety turned out to be 11% higher than that of the control, which may indicate the effectiveness of these types of treatments during winter vaccinations. The most effective CAP mode was the 15 s exposure mode. The slightly worse results with longer exposures of 30 and 45 s were perhaps due to the processes of oxidation of molecules and cells located on the sections. When dipping the rootstocks and grafts into the PTS solution, the highest concentration of 1:5 (20%) of the activated liquid showed good results. The deciduous part on the treated seedlings was well developed and corresponded to the indicators of the highest category seedlings. For high-quality accretion of the graft components and the formation of a complete nutrient transfer system, it is necessary to ensure the correct and accurate connection of the graft components to each other, as well as the purity and speed of their connection. The use of cold plasma in the technology of winter grafting of stone fruit crops has a positive effect on the quality and speed of grafting and contributes to a better union of  
Figure 12: Specific resistance of plant tissues in the grafting zone. * Indicates a significant difference at 5% level in comparison with the control. scion and rootstock tissues. With exposure to CAP on the cut surfaces of cuttings of plants, it is possible to achieve a positive effect with smoothing of the surface and reducing the degree of surface roughness and to some extent affect a reduction in the number and volume of the air gap between the rootstock and scion. The treatment also promotes the resorption of the insulating layer, which inhibits the process of accretion, because it consists of dead cells and their decomposition products [28]. On the cut surface and at a depth of up to 300 \(\upmu\)m inside the cut, under the influence of CAP and PTS, various processes of multistage biotransformation reactions of xenobiotics occur, accompanied by the development of aberrant post-translational transformations of proteins [29]. In particular, metastable nitrogen species are formed in the CAP, which may contribute to the lignification of the contact zone [30], this being necessary for the formation of a new vascular system [31]. On the cut surface, the ratio of O/C and polar oxygen-containing functional groups increases: CO, OC=O, \(-\)OH, etc. [32], which contributes to a significant increase in surface wettability. These effects significantly improve the adhesive properties of scion and rootstock sections, act as an important factor in the grafting stratification and contribute to leveling the influence of stresses from external environmental factors on the grafted plant. Processing with PTS from the entire set of acting factors is limited by the action of long-lived ROS and RNS. However, as shown in the course of the experiment, by selecting the optimal concentration of PTS, it is possible to achieve a similar efficiency as when processing with CAP.