TY JOUR TI ASSESSMENT OF THE SIBERIAN COLLECTION OF SPRING WHEAT ON RESISTANCE TO STEM RUST IN THE SOUTHERN FOREST-STEPPE OF WESTERN SIBERIA KW spring wheat KW raw material KW stem rust race Ug99 KW Sr-genes. JO Vestnik of Kazan State Agrarian University AU Pototskaya , I.. AU Shamanin, V.. AU Klevakina, M.. PY 2016 IS 11 PB Kazan state agrarian University