In Vitro

, Volume 13, Issue 12, pp 831–836 | Cite as

The in vitro propagation of amaryllis (Hippeastrum spp. Hybrids)

  • Janet E. A. Seabrook
  • Bruce G. Cumming
Article

Summary

A new, rapid technique for the propagation of amaryllis (Hippeastrum spp. hybrids) by means of tissue culture is reported. Leaf bases, scapes, peduncles, inner bulb scales and ovaries were cultured successfully in vitro and plantlets were induced readily at various concentrations of growth regulators. Some plantlets also were produced in the absence of growth regulators. The most productive tissues for propagation were inverted scapes and peduncles, cultured in a modified Murashige and Skoog salt solution with added organic constituents and 1 mg per 1 (4.5μM) 2,4-dichlorophenoxyacetic acid (2,4-D) and 1 mg per 1 (4.4μM) 6-benzylaminopurine (BAP). Plantlets induced axenically also grew roots on the generalized shoot-inducing medium so that no special rooting medium was required. Although friable callus was obtained from ovary tissue cultured on a medium containing 2 mg per 1 (11μM) naphthaleneacetic acid and 4 mg per 1 (18μM) BAP, it produced shoots after 8 weeks of further subculture on the same medium. An average of 10 rooted plantlets was obtained from each scape or peduncle explant on the shoot-propagating medium. Thus, if 45 explants are obtained from each bulb, 450 rudimentary plantlets could be obtained from each mother bulb in 8 weeks of culture. This is a substantial increase over present propagation methods.

Key words

Hippeastrum (amaryllis) tissue culture propagation horticulture 

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Copyright information

© Tissue Culture Association 1977

Authors and Affiliations

  • Janet E. A. Seabrook
    • 1
  • Bruce G. Cumming
    • 1
  1. 1.Department of BiologyUniversity of New BrunswickFrederictonCanada

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