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Authors

  • José Afonso Voltolini Departamento de Fitotecnia - CCA/UFSC
  • Marcelo Maraschin Departamento de Fitotecnia - CCA/UFSC
  • Eduardo Bove Empresa Floranda Ltda

DOI:

https://doi.org/10.5007/%25x

Abstract

Apical cuttings from derived middle branches of Araucaria heterophylla were collected in August, 1990 and subjected to indol-butiric acid (IBA) treatments, dipping the basal region in IBA solutions in concentrations of 0, 500, 1000, 1500 and 2000 mg/l, during 5 seconds. Aftwewards the cuttings were cultured in trays with isolated conic cells (5,0 x 12,0 cm) using soil, sand and vermiculite (1:1:1) as substrate, under mist, for 3 months. Then the cuttings were transfered to nursery (60% shaded) until April, 1991 when the data were recorded. Analysis of survival data showed that IBA in concentrations of 1000 mg/l resulted in the highest rooting levels (72%), but this growth regulator didn't affect the lenght of the roots. However, concentrations upper 1000 mg/l showed significative responses in relation to the root number.

Author Biographies

José Afonso Voltolini, Departamento de Fitotecnia - CCA/UFSC

Possui Graduação em Agronomia pela Universidade Federal de Santa Catarina, Mestrado em Agronomia pela Universidade Federal de Pelotas e Doutorado em Biologia Vegetal e Produtividade da Planta Cultivada - Universidade de Milão/Italia. Atualmente é Pesquisador da Universidade Federal de Santa Catarina.

Mais informações no Currículo Lattes.

Marcelo Maraschin, Departamento de Fitotecnia - CCA/UFSC

Possui Graduação em Engenharia Agronômica (Universidade Federal de Santa Catarina), Mestrado em Fisiologia de Plantas (Universidade Federal do Rio Grande do Sul), Doutorado em Bioquímica (Universidade Federal do Paraná/Leiden University-Leiden, NL).

Mais informações no Currículo Lattes.

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Published

1993-01-01

Issue

Vol. 6 No. 2 (1993)

Section

Artigos

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