Moreover, subculture of clumps of PLBs is much easier and efficient in comparison with subculture of individual PLB sections. Positive effects of CW and L-glutamine in culture
medium on multiplication rates of somatic embryos in other plant species are commonly reported (Alam et al. 2006). After a further four weeks of culture (in the same medium)
the PLBs were found to be enlarged with leafy shoots (Figs.1B, 1C).