The effectiveness of the use of microbiological preparations when interacting with seed stocks of the genus Prunus L.

An important element of increasing the efficiency of production of high-quality planting material of fruit crops according to the criteria of environmental management, resource conservation and productivity is the use of adaptive, technological rootstocks, as well as microbiological preparations that are environmentally friendly and multifunctional. They stimulate plant growth by changing their hormonal status, act as fungicides, as bio protectors, forcing the plant turn into its defense mechanisms, as bio fertilizers that promote the absorption of atmospheric nitrogen by plants, hard-to-reach forms of phosphorus, a number of trace elements, have an anti-stress effect, etc. To control the process of obtaining seedlings of the highest quality category, it is necessary to study the living system “plant-microbiological preparation-environment”. As a result of this research, it was found that the high temperature background in combination with severe drought, observed during the years of research, adversely affected both the development of rootstocks in the first field of the nursery, and the effect of microbiological preparations. When developing resource-saving elements in technology - the selection of genotypes and microbiological preparations for growing rootstocks, bypassing the school of seedlings, form 3-106 was highlighted, when using the preparation Pseudobacterin-2. Found a regularity - a positive interaction in the conditions of the Ust-Labinsk district of OLL “Experimental Nursery (EN) named after K.A. Timiryazev” seedlings of rootstocks for sweet cherry and cherry, of different origin, and the preparation Pseudobacterin-2. In conditions of high temperatures in the spring-summer period, the isolated preparation increased the germination capacity and the yield of high-quality planting material