The PLBs were induced only in four PGR concentrations i.e. i) 3.0 mgl−1 BAP ii) 1.0 BAP mgl−1 + 1.0 mgl−1 NAA, iii) 2.0 mgl−1 BAP + 2.0 mgl−1 NAA, and iv) 3.0 mgl−1 BAP + 3.0 mgl−1 NAA. Among the PGRs combinations and concentrations,
the maximum number of PLBs (15.25±2.26) were found in 1.0 mgl−1 BAP + 1.0 mgl−1 NAA (Fig. 4d–f). No response was observed in other combinations (Table 3).