title: Growth and Differentiation of Callus Derived from Leaf and Stem Internodes of Haplopappus gracilis (Nutt.) Gray.
abstract: Attempts were made to obtain plant regeneration in vitro from leaf tissue and stem internodes of Haplopappus gracilis. The morphogenetic effects of several combinations of auxin/kinetin and light with three types of basal media were investigated. A modified White's medium supplemented with IAA gave optimum callus growth, and permitted root and shoot differentiation.
authors.affiliation: Research Institute ITAL, P. O. Box 48, NL-6700 AA Wageningen, The Netherlands.
authors.forename: K
authors.initials: K
authors.lastname: Sree Ramulu
authors.forename: P
authors.initials: P
authors.lastname: Dijkhuis