TY JOUR TI ADAPTIVE POTENTIAL OF THE INITIAL MATERIAL IN THE SELECTION OF SOFT SPRING WHEAT KW spring soft wheat (Triticum aestivum L) KW source material KW productivity KW agroclimatic conditions KW varieties KW ecological plasticity KW stability KW homeostaticity JO Vestnik of Kazan State Agrarian University AU Mal'ceva, L.T. AU Filippova, E.A. AU Bannikova, N.Y. PY 2020 IS 15 PB Kazan state agrarian University