TY JOUR TI COMPARATIVE STUDY OF WINTER CROPS VARIETIES ON ACCUMULATION OF PROLINO IN THE AUTUMN-WINTER PERIOD KW winter crops KW rye KW wheat KW triticale KW varieties KW hybrids KW winter stress KW proline KW Bates method. JO Vestnik of Kazan State Agrarian University AU Gil'mullina, L.F. AU Mannapova, G.S. AU Mannapova, G.S. AU Ilalova, L.V. PY 2018 IS 13 PB Kazan state agrarian University