Cassava (Manihot esculenta Crantz) is an important tuber crop grown in many countries around the world that contributes to people's food security and is a source of income for producers. But it is clear that cassava cultivation encounters enormous constraints, among which cassava mosaic disease (CMD) and cassava bacteriosis are the most important. Thus, knowledge and exploitation of the diversity of cassava is of particular importance for maintaining and improving its productivity. It is in this perspective that the present study is carried out, the objective of which is to identify the morphological characteristics of 19 cassava clones, and to evaluate the susceptibility of the clones to cassava mosaic disease (CMD) and cassava bacteriosis at the Lomé Agronomic Experimentation Station. The results of this study revealed significant phenotypic variability within the clones. The evaluation of the phytosanitary state of the clones showed that the mean attack severity varied from 1.07 to 2.70 for CMD and from 1.81 to 2.11 for bacteriosis. Fresh tuber yields varied from 12.86 t/ha to 75.71 t/ha. Seven clones (GB20, GA24, D24, N22, Cm, C04, C02) obtained a higher yield than the control clone C01 (40 t/ha). The GB20 clone (75.71 t/ha) was the most productive, 89.26% more than the control clone.