Plant regeneration from somatic embryos. After 1 to 3 mo,
the induced somatic embryos were transferred to basal MS
medium for conversion into plantlets. Different treatments
including desiccation, and different combinations and
concentrations of plant growth regulators were used for
embryo conversion. For studying the effect of desiccation
on embryo conversion, the embryos were placed in
a Petri plate, kept open for 1 h in a laminar flow cabinet or
the plates were sealed and kept at 27°C for 48 h (slow
desiccation) in MS basal medium. Even slower desiccation
was achieved by leaving the embryos in the induction medium
for about 4–5 mo before transfer to MS basal medium for
germination