Salinity Effects on Growth Attributes Mineral Uptake, Forage Quality and Tannin Contents of Acacia saligna (Labill.) H. Wendl

摘要: A greenhouse experiment was conducted at the Agricultural Research Station, King Abdulaziz University to examine effects of salinity on biomass production, physiological responses, mineral uptake, leaves quality (protein, fiber, ash) and tannin content. 4 months old seedlings were exposed an increasing salt concentrations: (Bore well water, 7, 9 12 dS/m, respectively). Physiological traits Specific Leaf Area (SLA), Dry Matter Content (LDMC) Relative Water (RWC)) measured different growth development. Leaves minerals (N, P, Na, Ca, K, Mg), protein, fiber ash contents analyzed. Condensed tannins assayed by vanillin HCI method. The results showed that resulted in reduced production response lower SLA, RWC higher LDMC with concentrations. salts accumulation soil media Na associated Mg) leaves, while increased concentration. Protein, significantly differed among treatments. Despite stress growth, relatively good performance under all levels concentrations indicates this species has adaptive mechanisms withstand high salinity.