Modern criteria of the allelopathic estimation of secretions of mentha introduced in M.M. Grishko National Botanical Gardens of the National Academy of Sciences of Ukraine

The results of the investigations of allelopathy peculiarities of various types of secretions of 9 species of mentha in seasonal dynamics depending on cultivation terms were presented. Correlation between the level of phytotoxic substances in plants and surrounding soil were shown. The prospects of these data use in introduction prediction of cultures were considered.