On the basis of the principle of scientific cooperation between the faculties of the various universities of Iraq and the promotion of the exchange of scientific and research experiences, the assistant professor, Dr. Harith Mahmoud Aziz, the teaching assistant at the College of Agriculture – University of Karbala, participated in the discussion committee of the doctoral student Lubna Ali Sahel for her thesis tagged ((Response of vegetative growth of mangroves to the addition of humic acid and gibberellins under salt stress conditions)) in the Department of Horticulture and Landscaping – College of Agriculture – University of Basra.