TY JOUR TI A VARIETY IN THE SPRING WHEAT PROTECTION SYSTEM FROM LEAFY DISEASES KW spring wheat KW cultivar KW powdery mildew KW stem rust KW leaf brown rust KW dark brown leaf spot JO Vestnik of Kazan State Agrarian University AU Ashadullin, D.F. AU Ashadullin, D.F. AU Vasilova, N.Z. AU Husainova, I.I. AU Tazutdinova, M.R. PY 2019 IS 14 PB Kazan state agrarian University