Tall rescue (Festuca arundinacea Schreb. ) variety resources are abundant. Studying the differences among varieties and choosing the right variety are precondition for establishment of regeneration system of tall fescue. Seven varieties of tall rescue with strong drought resistance were selected to study plant regeneration system. The results showed that the differences in callus induction rate and the plantlet differentiation rate among varieties were extremely significant (P~0.01). There was no Spearman rank correlation between the callus...