*4.9. Statistical Analysis*

PAL activity, polyphenols and lignin contents results were tested by ANOVA analysis in SPSS software Version 20.0 using Tukey's test. The difference between treatments is significant at *p* < 0.05.

**Author Contributions:** Conceptualization, S.B., C.D., Z.E.A.-T. and C.E.M.; methodology, S.B., G.P., and. Z.E.A.-T.; supervision, C.D., C.E.M., and Z.E.A.-T.; Software, S.B.; Validation, S.B., C.D., Z.E.A.-T. and C.E.M.; writing—Original draft, S.B., C.D., Z.E.A.-T., and C.E.M., writing—Review and editing, S.B., C.D., Z.E.A.-T.; C.E.M, G.P., H.R., and P.M. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by Hubert Curien Program (PHC TOUBKAL 18/63), and financially supported by Ministry of Europe and Foreign Affairs, and CNRST of Morocco within the French–Morocco bilateral program. Grant Number: 38964TM.

**Conflicts of Interest:** The authors declare no conflict of interest.
