Improving the Tolerance of Citrus Rootstock C35 To the Salinity Levels of The Irrigation Water by Spraying with Alpha-Tocopherol
Abstract
The research was conducted in Karbala Governorate - Al-Hindiya District - Karbala Nursery for Citrus Production, certified for the 2023 agricultural season. The goal was to examine the effect of spraying with alpha-tocopherol at three concentrations (0, 100, and 200 mg L⁻¹) and the salinity irrigation water levels (0, 2.5, and 5 ds/m). The results showed that the 200 mg L⁻¹ concentration was superior in all studied traits (plant height rate, stem diameter rate, carbohydrate content of the leaves, chlorophyll content of the leaves, N content leaf, leaf, P content, and K content), with values of 75.01 cm, 13.07 mm³, 5.14 mg g⁻¹ dry weight, 52.74 SPAD, 2.578%, 0.433%, and 1.081%. The 5 ds/m salinity level was also The salinity level gave the lowest average score across all parameters (plant height rate, stem diameter rate, carbohydrate content of the leaves, chlorophyll content of the leaves, leaf N content, leaf P content, and leaf K content), where it reached 61.79 cm, 11.43 mm, 4.13 mg/g dry weight, 43.06 SPAD, 1.512%, 0.313%, and 0.808%. The interaction treatment between the concentration of 200 mg/L of alpha-tocopherol and 0 dS/m of salinity level was superior in all traits.
How to Cite This Article
Dr. Ihsan Jali Ethbeab (2026). Improving the Tolerance of Citrus Rootstock C35 To the Salinity Levels of The Irrigation Water by Spraying with Alpha-Tocopherol . International Journal of Agriculture Sustainable Farming (IJASF), 2(3), 09-15. DOI: https://doi.org/10.54660/IJASF.2026.2.3.09-15