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EFFECT OF PSEUDOMONAS PROTEGENS DA1.2 IN COMBINATION WITH HERBICIDES ON THE HORMONAL SYSTEM AND PRODUCTIVITY OF SOFT SPRING WHEAT IN THE CONDITIONS OF THE TRANS URAL STEPPE ZONE

This article presents data on the effect of a new growth-regulating bacterial strain Pseudomonas protegens DA1.2 on the productivity of soft spring wheat when treated with chyalan and nanomet herbicides under the conditions of the Trans-Ural steppe zone. The introduction of bacteria together with herbicides led to the accumulation of mass and stimulation of shoot growth, as well as maintaining a high relative water content in the leaves. In combinations of bacterial treatments with nanomet, an increased content of ABA and a decrease in the level of IAA in shoots were noted. Together with chistalan, the ABA concentration in the shoots decreased. The ability of bacterial treatments to increase the yield of wheat under conditions of combined stress caused by the action of herbicides and soil drought, due to the positive effect of bacteria on the growth and development of plants, was revealed.