studied proliferated mass of shoots from mature capitula with 0.1 mg/dm3 IAA and 10 mg/ dm3 BA in the medium (Capitulum explants of the varieties Appel Bloesem, Marleen, Clementine and Pimpernel were cultured on modified MS media
supplemented with 2 mg/dm3 BA and 0.5 mg/dm3 IAA).