TY JOUR TI Estimation of the degree of stability of grape varieties in arid conditions of the Astrakhan region KW grapes KW drought resistance KW water content of leaves KW water holding capacity KW turghorescence KW water deficiency. JO Agrarian Bulletin of the AU Polukhina, E.V. AU Vlasenko, M.V. AU Petrov, N.Y. PY 2019 IS 189 PB Ural State Agrarian University