TY JOUR TI QUALITY OF GRAINS OF COLLECTIVE SAMPLES OF SOFT WHEAT OF DIFFERENT ECOLOGICAL-GEOGRAPHICAL ORIGIN IN THE STEPPE ZONE OF THE ORENBURG REGION KW wheat KW variety KW grain KW nature KW vitreous content KW protein content KW gluten and its quality. JO Vestnik of Kazan State Agrarian University AU Timoshenkova, T.A. AU Samuilov, F.. PY 2018 IS 13 PB Kazan state agrarian University