TY JOUR TI STRATEGY AND ACHIEVEMENTS IN BUCKWHEAT BREEDING FOR MODERN FARMING UNDER THE CONDITIONS OF THE MIDDLE VOLGA REGION KW selection KW buckwheat KW selection background KW variety. JO Vestnik of Kazan State Agrarian University AU Kadyrova, F.Z. AU Kadyrova, L.R. PY 2018 IS 12 PB Kazan state agrarian University