TY JOUR TI COMPARATIVE EVALUATION OF SPRING BARLEY VARIETIES BY QUANTITY AND QUALITY OF PROTEIN KW spring barley KW variety KW protein KW high molecular weight protein KW yield JO Vestnik of Kazan State Agrarian University AU Ganieva, I.S. AU Blokhin, V.. AU Serzhanov, I.. PY 2019 IS 14 PB Kazan state agrarian University