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BIBTEX RIS

THE EFFICIENCY OF SHOOT AND PLANTLET FORMATION OF Cephaelis ipecacuanha AFTER THREE SUBCULTURES IN VITRO

1994; UNIVERSIDADE FEDERAL DE SANTA MARIA; Volume: 24; Issue: 3 Linguagem: Inglês

10.1590/s0103-84781994000300013

ISSN

1678-4596

Autores

O. A. Lameira, Marly Pedroso da Costa, José Eduardo Brasil Pereira Pinto,

Tópico(s)

Seed Germination and Physiology

Resumo

Multiple adventitious shoot formed from internodal segments of Cephaelis ipecacuanha cultured 25 days on Gamborg basal medium (GAMBORG et al., 1968) supplemented with 6.66mM 6-benzylaminopurine there was a maximum of nine shoots per segment and an average of five shoots per segment formed. The presence of gibberellic acid in the subculture media promoted shoot elongation in all treatments. The shoots attained 3cm in height and rooting of 100% after 35 days of culturing upon Murashige and Skoog's basal medium (MS), added with 4.92mM indole-3-butyric acid, 0.87m gibberellic acid and 0.1% activated charcoal. Further growth was accelerated after the transfer to 1/2 MS without growth regulators. Rooted plantlets transferred to potting soil could be successfully established.

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