IMPROVING CHEMICAL CONTENT OF DATE PALM CV. KHASTAWI UNDER DIFFERENT LEVELS OF SPRAYING WITH MICRO-ELEMENTS, GIBBERELLIC ACID AND SALICYLIC ACID

Abstract

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.

Keywords

• elements
• gibberellic and salicylic acid
• acid
• chemical content
• date palms