The Ph.D. Thesis submitted by Ms. Lamis Mohamed Nusrat Mahmoud Abdel Atty, Pomology Department, entitled:   "Effect of sugars amino acids and salinity stress on growth of some citrus rootstocks in vitro  "   Under supervision of: 1.    Prof. Ayman Kamal Ahmed Mohamed 2.    Prof. Mohamed Samy meligi 3.    Dr. Mokhtar Mamdouh Shaaban    Approved BY: 1-    Prof. Ahmed Hassan Mahmoud Abdel Aal 2-    Prof. Ahmed Mohamed Kamal Abdel Aal 3-    Prof . Ayman Kamal Ahmed Mohamed 4-    Dr. Mokhtar Mamdouh Shaaban   Would be discussed at sunday 23/10/2016 on 11.00 o’clock in Pomology Department Hall