Figure 2. Effect of genotype on phenolic oxidation of embryogenic axesofcommon bean (Phaseolus vulgaris L. cvs. Bribrí, Brunca, Guaymí, Huetar and Telire) regardless of the BAP and AS concentration. Mean ± SE. Values within columns followed by the same letter are not significantly different with the Tukey Unequal N HSD test (P < 0.05).