%0 Conference Proceedings %T A Study on the Effect of Sterile Conditions and Hormone Types on the Inhibition of Necrosis Leaf Explants of African Violet (Saintpaulia ionantha) in vitro Culture %A Amiri, Akram %A Nemati, Seyyed Hossein %A Shoor, Mahmoud %A Tehranifar, Ali %A M. Taghizadeh %J 28th international horticultural congress %D 2010