Potato extract (PE), corn extract (CE) and papaya extract (PAE) at concentrations of 25, 50 and 100 mL L^-1enhanced callus growth on New Phalaenopsis (NP) medium containing sucrose. Among the various concentrations, 100 mL L^-1 PE or PAE and 200 mL L^-1 CE significantly promoted callus growth compared to the control. Regeneration of protocorm-like bodies (PLBs) from calli was optimum when NP medium (sometimes referred to as BM) was supplemented with 100 mL L^-1 CE, followed by PE and PAE at the same concentration. Most plantlets also regenerated from PLBs with one 100 mL L^-1 CE.