title: Gibberellin-induced Fertility in the Fern Ceratopteris thalictroides (L.) Brongn.
abstract: Treatment of the homosporous fern Ceratopteris thalictroides L. sporophyte with gibberellic acid results in fertile fronds appearing 3 to 5 weeks after treatment. The hetero-blastic leaf sequence is markedly reduced, and the entire life cycle can be completed in 3 months on defined medium. Treatment with gibberellic acid also stimulates the accumulation of starch in mature leaves.
authors.affiliation: Department of Botany, University of Massachusetts, Amherst, Massachusetts 01002.
authors.forename: D B
authors.initials: DB
authors.lastname: Stein