Fig. 3From: High frequency in vitro regeneration of adventitious shoots in daylilies (Hemerocallis sp) stem tissue using thidiazuron– Showing transitory and antecedent roles of snow callus in IC explants a-c; it disappeared as multiple shoots formed b and developed c and did not obviously makeup new shoots as did normal callus in CUEU explants d. *shows normal callus forming multiple shoots at the base of the cross-sectioned stem explant (i) cultured with the upper end up to keep stem normal polarityBack to article page