I’m trying to transfer mature Corylus avellana shoots to in vitro conditions. I have no problem about surface sterilization, I obtained enough sterile material and all of them are surviving. But there is a problem that shoots have still not regenerated. For regeneration medium I tried; MS + 0.01mg/l IAA + 5mg/l BA + 0.1mg/l GA3; and later MS + 0.01mg/l IBA and 2mg/l BA.