| The purpose of the study was to determine how the date palm cultivar Khastawi responded to experimental treatments by applying microelements via spraying at quantities of 1 g L⁻¹ and 0 g L⁻¹, and applying a quantity of GA3 and salicylic acid at 100 mg L⁻¹, 200 mg L⁻¹, and 0 mg L⁻¹. The outcomes demonstrated that applying microelement spray (1 g L⁻¹) had a substantial impact on the attributes under study, amounting to (0.88 mg g⁻¹, 11.51%, 0.31%, 1.70%, 167.61 mg kg⁻¹, 59.34 mg kg⁻¹, 60.72 mg kg⁻¹) for the traits (total chlorophyll, carbohydrates, phosphorus, potassium, iron, zinc, manganese), respectively. On the other hand, gibberellin spraying had no significant effect on any of the response measurements. However, applying a salicylic acid (SA) spray significantly affected the characteristics under investigation (carbohydrates, phosphorus, iron, zinc, manganese). The concentration of 200 mg L⁻¹ revealed the highest values for these characteristics (11.67%, 0.55%, 162.23 mg g⁻¹, 66.93 mg kg⁻¹, 63.73 mg kg⁻¹). The substantial influence was revealed by the two-way interactions between the research components according to the type of trait and the interaction factors. Conversely, the three-way interaction among the research components became significant for every attribute under investigation except elements Mn and N. |
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