TY JOUR TI PRIMARY GENOTIPIC SELECTION FOR IMPROVEMENT OF HARD WHEAT STABILITY AND RESPONSE IN YIELD KW wheat KW yield KW variety KW stability KW response JO Bulletin Samara State Agricultural Academy AU Malchikov, P.N. AU Myasnikova, M.G. AU Chaheeva, T.V. PY 2020 IS 5 PB Samara State Agricultural Academy