The Effects of Humic Acid and Calcium on Morpho-Physiological Traits and Mineral Nutrient Uptake of Pistachio Seedling under Salinity Stress

The study was carried out to evaluate the effects of soil application of humic acid and calciumon morpho-physiological traits and Na+, Mg2+, Ca2+ uptake of Pistachio seedling (Akbari) grown under salt stress.  A completely randomized design was used with four replications in greenhouse conditions. The experimental treatment consisted of four levels of humic acid (Bis humic) (0, 4, 8 and 12 gr kg-1 soil) and anti-salt as a source of Ca+2 (0, 1, 2 and 3 gr kg-1 soil). Results indicated that humic acid and  anti-salt significantly increased vegetative growth, such as root fresh and dry weight, stem diameter, leaf number and leaf area, of pistachio seedling in comparison with the control group (p