Mr. Mahmoud Khalaf Mahmoud discussed a research entitled (The effect of spraying with nano-iron oxide and potassium on the growth, flowering, and some anatomical characteristics of the dwarf rose) to obtain a master’s degree, where he obtained an honors rating. The discussion took place at Tikrit University, College of Agriculture, and under the supervision of Prof. Dr. Ziad Khalaf Saleh. (Chairman) and A.M.D. Wijdan Saadi Aziz (Member) and Prof. Riyad Manna Mohsen (member) and Prof. Dr. Muhammad Abdullah Ahmed (member and supervisor).