Effect of Sodium Chloride and Salicylic acid in the Content of Proline Amino Acid and Ion Concentration of date palm Leaves Phoenix dactylifera L. c.v. Nabout Saif produced from tissue culture.

Abstract

The study was conducted in the Faculty of Agriculture / University of Thi-Qar during (2017-2018), the primary objective of this invsetigation was to study the effect of sodium chloride, salicylic acid and their interaction on some chemical properties of date palm leaf cultivar of Nabout Saif produced from tissue culture. The study was carried out as a factorial experiment according to the randomized complete block design (RCBD) using three concentrations of sodium chloride (75, 150 and 225 mM) and two concentrations of salicylic acid (50 and 100 mg l-1) in addition to the control treatment , and the results were expressed as means for three measurements. Sodium chloride had a significant effect on the studied parameters, the treatment of sodium chloride at a concentration of (225 mM) showed a significant increase in the concentrations of ( proline amino acid, sodium, and chloride elements), and resulted in a significant decrease in the concentrations of (potassium and the ratio of potassium/sodium). The salicylic acid spraying treatments had a significant effect, and the salicylic acid treatment at (100 mg l -1) concentration significantly decreased the concentrations of (Sodium and chloride elements ) and a significant increase in potassium concentration, Besides, the treatment with salicylic acid at 50 mg l-1 appeared at the highest concentration levels of (Proline amino acid). While no significant effects of salicylic acid treatments on the Ratio of Potassium/Sodium. The effect of the interaction between sodium chloride and salicylic acid treatments showed a significant effect on some of the studied parameters, where the interaction between sodium chloride at 150 mM concentration and salicylic acid at a concentration of 50 mg l-1 significantly increased in the concentration of proline. While the interaction treatment between sodium chloride at 75 mM concentration and salicylic acid at a concentration of 50 mg l-1 showed the lowest average concentration of sodium element. The treatment of the interaction between sodium chloride (mM 0) and salicylic acid (100 mg l-1) appeared the lowest average of chloride concentration and the highest average of the potassium concentration and potassium to sodium ratio. While the interaction treatment between sodium chloride at 75 mM concentration and salicylic acid at a concentration of 0 mg l-1 showed the lowest average of the potassium concentration and potassium/sodium ratio