TY JOUR TI ANALYSIS PROTEINS IN SOYBEAN FOR TRYPTOPHAN CONTENT KW tryptophan KW soybean KW Amur varieties KW protein KW amino acid index JO Bulletin of KSAU AU Nizkiy, S.. AU Kodirova, G.A. AU Kubankova, G.V. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University