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Aim. To evaluate changes in the physiological and biochemical parameters of Galega orientalis plants by the influence of artificial inoculation by phytopathogenic microorganisms, that have been isolated from various sources: strains of phytoplasmas – Acholeplasma laidlawii var granulum 118, isolated from wheat and Acholeplasma laidlawii 101 and 178, isolated from tomato and bacterial strain – P. syringae pv. atrofaciens D13, which have been isolated from wheat.Methods. Microbiological methods – cultivation in the liquid nutrient medium, isolation of phytopathogenic microorganisms from plant material and artificial inoculation of experimental plants (subepidermal injection); biochemical – for the purpose of determination of photosynthetic pigments – chlorophylls a and b and carotenoids and activity of antioxidant enzymes catalase and peroxidase; photochemical – method of chlorophyll a fluorescence inducing to determine the photochemical activity of leaves; biometric – to determine the area of the root system and the number of nodules on the roots; statistical.Results of research. In field experiments on the crops of the Fodder Galega under the conditions of artificial infection with strains of phytopathogenic microorganisms of different taxonomic groups – A. laidlawii var. granulum 118 and P. syringae pv. atrofaciens D13 (both isolated from wheat) and strains – A. laidlawii 101 and 178, isolated from tomatoes, the following changes were observed in the physiological and biochemical parameters of Galega orientalis plants: reduction of chlorophyll a and b content with increasing carotenoid content and inhibition of quantitative efficiency of PSII, especially in mixed A. laidlawii var. granulum 118 and P. syringae pv. atrofaciens D13, which was accompanied by a decrease in the area of the root system and the number of nodules on the roots of the plants. It was found, that the highest total activity of tissue Galega orientalis oxidase reductases – catalase and peroxidase

Aim of research. To evaluate changes in the spring wheat rhizosphere microbiocenosis at the pre-sowing treatment by citrates of biogenic metals, created based on nanotechnologies and inoculation of the consortium of root microorganisms in soil at the effect of these arrangements on the enzymatic activity of leaf tissues and productivity of wheat plants. Methods. Microbiological methods – inoculation on solid nutritive mediums for determining the content of main groups of soil microorganisms in the rhizosphere of plants; biochemical – for determining the activity of antioxidant enzymes of catalase and peroxidase; biometric – for determining the mass of 1000 seeds and seed productivity on experimental areas; statistical.Results of research. Field experiments of crops of spring wheat Pecheryanka demonstrate that at the pre-sowing treatment of seeds by 1%-solutions of biologically active substances in the content of composite fields of citrates of nanoparticles of Ag+Cu and Co+Cu+Zn+Fe+Mn+Mo+Mg (Avatar-1) and ions I-Se and introduction of the consortium of soil-useful microorganisms (biopreparation BP Extrakon), there were observed changes of ratios of main microbial groups in the composition of soil microbiocenocis: aerobic nitrogen-fixers, actinomycetes, fungal microflora, oligotrophic bacteria, that in some way correlated with the seed productivity.Conclusions. 1. It has been established, that the ratio of microbial groups, especially the percent of groups of aerobic nitrogen-fixers increased in the wheat rhizosphere relating to the control in the following succession – in the earing phase: BP Extrakon˃Extrakon+I-Se, and in the milk ripeness phase – in the following succession: BP Extrakon+I-Se˃BP Extrakon˃Avatar-1˃Ag-Cu. Actinomycetes prevailed on the variant with the pre-sowing treatment by I-Se, and the fungal microflora – in the milk ripeness phase. 2. The activity of catalase ad peroxidase in leaf tissues at the pre-sowing treatment by biologically active su