Morocco is endowed with a very diversified viticultural heritage autochthonous and introduced grape varieties but unfortunately, we are witnessing a strong regression of these local vines, confusions in the identification of these varieties as there are similar names that differ from one region to another. This study aims to characterize the vine varieties of the species Vitis vinifiera of the Moroccan Rif region, namely Taferyalet Bayda (TB), Taferyalet Chahba (TC), Boukhanzir (BK), Bzoult Aouda Kahla (BAK), Bzoult Aouda Hamra (BAH), Dibanni (DB), Lebyed (LB), and Fakass (FA) with a phytochemical study.The descriptive ampelographic studies in physiological stages have shown similarities that make difficult the discrimination between our study varieties, for this purpose a phytochemical study is carried out in order to bring some varietal distinctions. Indeed, some varieties are rich in polyphenols such as Bzoult Aouda Kahla and Bzoult Aouda Hamra, Boukhanzir and Taferyalet Bayda, the hgh content of flavonoids in Taferyalet Kahla and Taferyalet Bayda and the variety Dibanni is the richest in tannins. From this study it can be affirmed the possible role of phytochemical analysis of the distinction between varieties with morphological similarity.
Index Terms- Vitis vinifera, autochthonous, Morocco, phytochemicals, ampelography.