TY JOUR TI INFLUENCE OF BIOTRAN ON THE PRODUCTIVITY AND QUALITY OF SPRING WHEAT GRAIN IN THE MIDDLE VOLGA REGION KW growth regulator KW Azofoska KW spring wheat KW productivity KW grain quality KW Middle Volga region JO Vestnik of Kazan State Agrarian University AU Saydyasheva, G.V. AU Zayceva, K.G. PY 2022 IS 17 PB Kazan state agrarian University