Fig. 2

Somatic embryogenesis from different accesses (PH17, PH21, PH28, PH37, and PH39) of Piper hispidinervum. A Formation of primary calluses. B Formation of embryogenic calluses. C Formation of somatic embryos-like structures (SE) in embryogenic calluses. The bars represent the standard errors. Means followed by the same letter do not differ statistically from each other by the Scott-Knott test at 5% significance