Mohammed Ahmed Kareem, Zainab Abduljabar Hussain, Tagreed Abduljabar, Nora Sahib, and hyfa muhssen Bander. 2014. “Effect of Benzyl Adenine ( BA) on In Vitro Initiation of Pear Pyrus Communis L and Apple Malus Domestica Borkh Rootstocks ”. Journal of Madenat Alelem University College 6 (2), 64-72. https://journal.mauc.edu.iq/index.php/JMAUC/article/view/178.