Trifoliate orange and Carrizo citrange are two rootstocks with different zinc (Zn) absorption potential.Newhall navel oranges (N)/Carrizo citrange orange (C,Citrus sinensis Osb.×Poncirus trifoliata Raf.) grafted seedlings (N/C) and N/C inarched with trifoliate orange (P.trifoliata (L.) Raf.,N/Ct) cultivated in Zn deficient condition for 12 months before treatments,and then resupplied with 0.001 mg/L (deficient,control) and 0.05 mg/L (Zn resupply,adequate) Zn in sand culture for 5 months were used to study the effects of Zn resupply on the growth and Zn nutrient absorption of Zn deficient Newhall navel orange inarched with trifoliate orange.The results showed that the dry weight of new leaves and scion stems of inarched plants was higher than that of noninarched plants either with Zn resupply or Zn deficient treatment.The Zn concentration and content of leaves were not higher in the inarched plants compared with the noninarched plants under Zn deficient condition.However,the Zn concentration of the old leaves and roots of inarched plants was significantly higher than that of the noninarched plants,and the Zn accumulation of new leaves of inarched plants was significantly higher than that of noninarched plants under Zn resupply condition.Zn resupply significantly increased the Zn concentration and content of inarched plants,and significantly increased the Zn content of noninarched plants.The potassium concentration in new leaves of inarched plants was significantly higher than that of the noninarched plants,and the calcium concentration in the roots of the original rootstock was significantly higher than that of the noninarched plants under Zn deficient condition.The potassium concentration of the new leaves was not significantly different between inarched plants and noninarched plants under Zn resupply condition.The calcium concentration of the new leaves of inarched plants was significantly lower than that of noninarched plants,but there was no significant difference in the calcium concentration of the original rootstocks between inarched plants and noninarched plants.Zn resupply significantly reduced the boron concentration in the new leaves and roots of the plants.