TY JOUR TI EVALUATION OF SPRING SOFT WHEAT VARIETIES AND LINES BY GRAIN YIELD AND YIELD STRUCTURE ELEMENTS IN THE CONTRASTING CONDITIONS OF THE SOUTHERN FOREST-STEPPE OF WESTERN SIBERIA KW variety KW line KW spring soft wheat KW yield KW yield structure JO Vestnik of Omsk SAU AU YAKUNINA, N.A. AU POPOLZUKHINA, N.A. AU POPOLZUKHIN, P.V. AU KROTOVA, L.A. PY 2023 IS 51 PB FSBEI HE Omsk SAU