G.K. Kasumova - Сandidate for a degree, Institute of Botany of the National Academy of Sciences of Azerbaijan, Baku
F.К. Kurbanova - Сandidate for a degree, Institute of Botany of the National Academy of Sciences of Azerbaijan, Baku
S.V. Serkerov - Dr.Sc.(Chem.), Professor, Institute of Botany of the National Academy of Sciences of Azerbaijan, Baku. E-mail: s.serkerov@mail.ru