TY JOUR TI IMPACT OF MORPHOLOGICAL CHARACTERS ON PRODUCTIVITY OF SPRING BARLEY VARIETIES IN THE STEPPE ZONES OF ORENBURG URAL REGION KW spring barley KW variety KW morphological characters KW productivity. JO Vestnik of Kazan State Agrarian University AU Timoshenkova, T.A. AU Samuilov, F.. PY 2016 IS 11 PB Kazan state agrarian University