Seabuckthorn is a small tree showing pronounced morphological, physiological, biochemical and genetic
variability, high ecological plasticity and large limits of resistance to unfavourable factors and to phytopathogens. It is
largely exploited in biotechnological, nutritional, and pharmaceutical purposes, cosmetics domain and in environmental
protective field. The possibility that some karyotype traits of five seabuckthorn ecotypes to be used as markers in relation
with some specific biochemical features was discussed in this paper. There is intraspecific chromosome variability; the
formula of haploid complement is different concerning the preponderance of chromosome morphotypes. Also a marked
chemical heterogeneity was evidenced. At this research stage, the results not allow us to establish a direct relationship
between some chromosome characteristics and certain morphological and biochemical parameters