All predawn (7:00-7:30 am) and midday (11:00-11:30 am) Ψw measurements were made with water potential measurement system. Values of LWC were determined as: LWC=100 (FM−DM)/ FM; Where FM is leaf fresh mass andDM is leaf dry mass. Dry mass was determined after drying the leaf samples at 80 °C for 24 h. Values of LWC was expressed as relative water content (RWC) by determining FM, DM and saturated mass (SM); [RWC = (FM−DM)/ (SM−DM)]. The SM was determined in rehydrated leaves by immersing the petiole in distilled water in a beaker sealed with parafilm. Full rehydration was achieved with 5 h in complete darkness at room temperature.