TY JOUR TI ASSESSMENT OF CALLUS-FORMING POTENTIAL OF BUCKWHEAT VARIETIES KW buckwheat (Fagopyrum esculentum) KW callus formation KW in vitro KW growth index KW specific growth rate JO Agrobiotechnologies and digital farming AU Klimova, L.R. AU Imatullina, G.I. AU Kadyrova, F.Z. PY 2025 IS 4 PB Kazan state agrarian University