The objective of the current study was to determine the behaviour of six carrot varieties of Algerian origin (Muscad d'Alger, Super Muscad, Touchon, Nantaise, Nantaise améliorée and Breclium) regarding five germination traits, nine seedling growth parameters and three biochemical traits (proline, sugar and chlorophyll). In this, four concentrations of NaCl were used when inducing salt stress (control, 25 mM, 50 mM and 75 mM). At germination stage, the percentage of germination was the highest discriminatory trait for all the salt concentrations (25, 50 and 75 mM NaCl). Three different groups of varieties were clustered whereby Muscade d'Alger developed the highest NaCl tolerance during germination. The ANOVA indicated that at the maturity stage, root length and total chlorophyll were the most significant for the biochemical and growth traits. In the biplot analysis, Muscade d'Alger was identified as the maximum salt-tolerant variety. Although Nantaise améliorée and Breclium were identified as the most sensitive, it can be concluded that it is possible to use germination %, germination stress index, root length, root and leaf length stress index as marker traits for the identification of salt (NaCl) tolerance in carrot variety.