Vegetative propagation by cuttings of azaléia tree (Rhododendron thomsonii HOOK. f.)

Authors

  • Aurea Portes Ferriani Universidade Federal do Paraná
  • Michele Fernanda Bortolini Universidade Federal do Paraná
  • Katia Christina Zuffellato-Ribas Universidade Federal do Paraná
  • Henrique Soares Koehler Universidade Federal do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2006v27n1p35

Keywords:

Rhododendron tomsonii, Indolebutyric acid, Semihardwood cutting.

Abstract

Rhododendron thomsonii (Ericaceae) is a chinese ornamental hardwood species. The seeds are used just for hybrids production, therefore, vegetative propagation is an appropriate way for large scale plant production. The rooting potential was evaluated in cuttings collected in spring/2004 from stock plants localized in Curitiba, Paraná. The stem cuttings were produced with 12 cm long, right cut upper and bevel bellow, with two half leaves and treated with sodium hypochlorite for ten minutes and current water for five minutes. The cuttings basis were dipped in IBA treatments (0, 1000, 2000, 4000mgL-1) in alcoholic solutions and talc (0, 1000, 2000, 4000 mgKg-1), totalling eight treatments with four replications of nine cuttings. Mean separation were made using a pair wise design (4X2) in a association between dosage and application ways. The cuttings were planted in vermiculite medium and maintained in greenhouse for 70 days. The evaluation included percentage of rooting, callus cuttings (without root with callus), alive and dead cuttings. No rooting was verified in cuttings collected in this season. The variance analysis showed no interactions between dosage and application ways.

Author Biographies

Aurea Portes Ferriani, Universidade Federal do Paraná

Bióloga, Mestranda em Agronomia – Produção Vegetal, Universidade Federal do Paraná (UFPR), Curitiba – PR.

Michele Fernanda Bortolini, Universidade Federal do Paraná

Bióloga, Mestranda em Agronomia – Produção Vegetal, Universidade Federal do Paraná (UFPR), Curitiba – PR.

Katia Christina Zuffellato-Ribas, Universidade Federal do Paraná

Bióloga, Dra., Depto. Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Centro Politécnico –Jardim das Américas CP: 19031 CEP: 81531-970 Curitiba - PR, Profa. Adjunta. Curitiba, PR.

Henrique Soares Koehler, Universidade Federal do Paraná

Eng. Florestal, Dr., Depto. Fitotecnia e Fitossanitarismo, Setor de Ciências Agrárias, Universidade Federal do Paraná (UFPR),Prof. Adjunto.

Published

2006-06-30

How to Cite

Ferriani, A. P., Bortolini, M. F., Zuffellato-Ribas, K. C., & Koehler, H. S. (2006). Vegetative propagation by cuttings of azaléia tree (Rhododendron thomsonii HOOK. f.). Semina: Ciências Agrárias, 27(1), 35–42. https://doi.org/10.5433/1679-0359.2006v27n1p35

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