TY JOUR TI GRAIN QUALITY POTENTIAL OF SPRING WHEAT VARIETIES IN NORTHERN FOREST-STEPPE OF TYUMEN REGION KW strong wheat KW grain nature KW glassiness KW gluten KW flour strength KW baking qualities JO Bulletin of KSAU AU Letyago, Y.A. AU Belkina, R.I. PY 2014 IS PB Krasnoyarsk State Agrarian University