TY JOUR TI SOURCE MATERIAL OF WINTER SOFT WHEAT SELECTION FOR PRODUCTIVITY AND DWARFNESS IN THE MIDDLE VOLGA FOREST-STEPPE CONDITIONS KW winter soft wheat (Triticum aestivum L.) KW initial material KW variety KW selection KW productivity KW plant height KW low stem JO Vestnik of Kazan State Agrarian University AU Zakharova, N.N. AU Zakharov, N.G. AU Isaychev, V.A. PY 2023 IS 18 PB Kazan state agrarian University