Effect of potassium polyacrylate on the anatomical changes of Canary palm Phoenix canariensis L. offshoots growing under oxidative stress conditions

This study examined the effects of irrigation intervals and potassium polyacrylate on the anatomical features of canary palm offshoots. three-year-old were planted in pots. The study involved a two-factor experiment. The first factor involved treating with the polymer compound at three concentrations (0, 100, and 150 g offshoot-1). The second factor involved treating with irrigation intervals (2, 10, and 30 days). Anatomical sections of the leaflets were prepared using paraffin wax to study their anatomical characteristics. The results of the experimental results showed that the treatment with 0gm polymer gave the highest average cuticle thickness of 7.81 µm, while the polymer with a concentration of 150g polymer gave the lowest average cuticle thickness of 4.40 µm, highest average epidermal cell thickness of 13.42 µm, parenchyma cell diameter of 20.18 µm, pro-xylem of 20.37 µm ,meta-xylem of 65.39 µm, phloem cell diameter of 19.37 µm, and fibrous bundle diameter of 66.15 µm. The irrigation intervals of every 2 and 10 days, without use of the polymer, did not cause the plant to enter the effect of drought stress. The interaction between the polymer at a concentration of 100 g offshoot-1 with the irrigation intervals of every 2 and 10 days did not significantly affect some anatomical characteristics, which confirms the lack of importance of the polymer at this concentration in cases where the plant has sufficient moisture content. Moreover, the interaction of the polymer at a concentration of 150 g offshoot-1 with all irrigation intervals reduced the effect of drought stress and improved the anatomical characteristics of the leaves.