TY JOUR TI AGRO-ECOLOGICAL ASPECTS OF PUCCINIA DISPERSA ERIKS. AND PUCCINIA GRAMINIS PERS. DEVELOPMENT IN THE CROPS OF RYE IN THE KIROV REGION KW winter rye KW variety KW selection stages KW brown and stem rust KW climatic factors KW immunological characteristic KW correlation analysis JO Vestnik of Kazan State Agrarian University AU Schekleina, L.M. AU Sheshegova, T.K. PY 2019 IS 14 PB Kazan state agrarian University