TY JOUR TI SEED CROPS ROOT STOCK ECONOMIC AND BIOLOGICAL CHARACTERISTICS IN THE ASTRAKHAN REGION CONDITIONS KW rootstock KW variety KW vertical cuttings KW clonal rootstocks KW bole KW survival rate KW variety combination. JO Bulletin of KSAU AU Matveeva, N.I. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University