Fig. 1 Evolution of calli in
shoot induction media.
a Organogenic callus after
2 weeks in shoot induction
media. Note the formation of
shoot primordia (arrows) on the
callus surface. b Nonorganogenic
callus after
5 weeks in shoot induction
media. c organogenic callus
after 5 weeks in shoot induction
media. d Shoot emerging from a
callus. Bars 1 cm