Pawełczak A., Bryksa-Godzisz M.

The aim of the study was to develop the method of micropropagation of yellow everlasting. On the multiplication stage the influence of BA concentration appeared to be essential for the number of shoots obtained from an explant, however the influence of basic mediums was not significant. On medium MS with 1.0 mg BA 17.59 shoots were obtained from one explant. Everlasting microcuttings in the applied conditions were rooting in 96%. The fresh weight of micro-cuttings, their shoot and root length depended on the BA concentration in the multiplication medium. Above 90% of all cuttings planted in a greenhouse were adapted to ex vitro conditions. Over 10 weeks of cultivation in a greenhouse plants branched intensively and formed 6.8 branches. The root suckers forming was observed.

Key words: helichrysum arenarium, micropropagation, rooting