TY JOUR TI ECOLOGICAL PLASTICITY OF SPRING BARLEY VARIETIES IN THE REPUBLIC OF TATARSTAN KW spring barley KW variety KW ecological plasticity. JO Vestnik of Kazan State Agrarian University AU Nizhegorodtseva , L.. AU Turnin , S.. AU Karimova , L.. AU Safin, R.. PY 2015 IS 10 PB Kazan state agrarian University