Response of Date Palm Trees Phoenix dactylifera L. Bream Cultivar to the Two Biostimulants Agazone and Amalgerol and the Method of Their Application.

Abstract

    This study was conducted in private orchards located in Abu Al-Khaseeb district, south of Basra Governorate, to evaluate the response of date palm trees (Bream cultivar) to biostimulant treatments. Two biostimulants, Amalgerol and Agazone, were tested at concentrations of 0, 6, and 12 mg.L⁻¹, using two application methods: foliar spray and soil drench. Results showed significant effects of these treatments on several fruit traits. Foliar spray application improved fruit length, size, weight, fleshy layer weight, dry matter percentage, maturity, and total and reducing sugars compared to soil application. The 12 mg.L⁻¹ Agazone treatment significantly enhanced fruit length, size, weight, fleshy layer weight, and sugar content, outperforming the control treatment, which had the lowest values. The 6 mg.L⁻¹ Agazone treatment  was superior in increasing fruit diameter compared to the control treatment. Interaction effects between biostimulant concentration and application method were significant for most measured traits.