Use of hormonal regulators in the germination and development of orchid seedlings in vitro

Authors

  • Gessé Almeida Santos CESUMAR
  • Belisa Cristina Saito CESUMAR
  • Diógenes de Paiva Monteiro CESUMAR
  • Maria Auxiliadora Milaneze Gutierre UEM
  • Patricia da Costa Zonetti CESUMAR

Keywords:

Catteya bicolor, reguladores hormonais, cultivo “in vitro”

Abstract

This work had the objective to assess the germination rate and development of seedlings of Cattleya bicolor (Orchidacea) using the regulators ?-naphthaleneacetic acid and gibeleric acid in the seeds pre-imbibition treatment. Knudson’s medium was employed for the inoculum. The seeds were previously treated with the regulators in the concentrations of 0.0; 1.0; 2.0 and 5.0 mg/L for 24 hours. The treatment with giberelic acid was shown to be more effective in relation to the number of seedlings formed. The percentage of protocorms with buds was greater in the treatment with giberelic acid in the concentrations of 2.0 and 5.0 mg/L. The auxine was not shown to be effective in the seeds pre-imbibition treatment of Cattleya bicolor in its development in vitro.

Author Biographies

Gessé Almeida Santos, CESUMAR

Acadêmico do Curso de Ciências Biológicas do CESUMAR – Centro Universitário de Maringá, Bolsista do Programa de Bolsas de Iniciação Científica do CESUMAR (PROBIC).

Belisa Cristina Saito, CESUMAR

Acadêmica do Curso de Ciências Biológicas do CESUMAR – Centro Universitário de Maringá.

Diógenes de Paiva Monteiro, CESUMAR

Acadêmico do Curso de Ciências Biológicas do – Centro Universitário de Maringá.

Maria Auxiliadora Milaneze Gutierre, UEM

Professora Doutora do Departamento de Biologia da Universidade Estadual de Maringá, UEM.

Patricia da Costa Zonetti, CESUMAR

Professora Doutora do Curso de Ciências Biológicas do CESUMAR – Centro Universitário de Maringá. email:patriciazonetti@cesumar.br

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Published

2007-08-20

How to Cite

Santos, G. A., Saito, B. C., Monteiro, D. de P., Gutierre, M. A. M., & Zonetti, P. da C. (2007). Use of hormonal regulators in the germination and development of orchid seedlings in vitro. Iniciação Científica Cesumar, 9(1), 7–12. Retrieved from https://periodicos.unicesumar.edu.br/index.php/iccesumar/article/view/473

Issue

Vol. 9 No. 1 (2007)

Section

Artigos Originais

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