Figure 5. Effects of L-Proline (white bar), of amino sugars (gray bar), or of a combination of L-Proline and amino sugars (black bar) concentrations on the incidence of SE of our embryogenic chicory hybrid. The number of somatic embryos per mm² of leaf was scored after 12 d of culture. Results of Student-Neuman Keuls range test are shown where means followed by different letters are significantly different at the 5% probability level.