2Sumaya F. Hamad1HA alkareem,. The Effects of Plant Growth Regulators and Explant Types on Callus Induction and Shoot Regeneration In Tulipa Gesneriana. IJB [Internet]. 29Nov.2025 [cited 7Oct.2026];24(2). Available from: https://jige.uobaghdad.edu.iq/index.php/IJB/article/view/924