| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Vegetative rescue and ex vitro system production of Tibouchina sellowiana clonal plants by cutting and mini-cutting
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| Autores: |
Fragoso,Rosimeri de Oliveira
Stuepp,Carlos André
Sá,Francielen Paola de
Kratz,Dagma
Zuffellato-Ribas,Katia Christina
Wendling,Ivar
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| Data: |
2017-11-01
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| Ano: |
2017
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| Palavras-chave: |
Auxin
Clonal mini-garden
Ornamental species
Rejuvenation
Vegetative propagation
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| Resumo: |
ABSTRACT: We aimed to evaluate the rooting potential of Tibouchina sellowiana through the experiments: I - Cuttings from current-year shoots and epicormic shoots were submitted to IBA concentrations: 0, 500, 1000, 1500 and 2000mg L-1, in a factorial arrangement 2 x 5 (two types of cuttings x five IBA concentrations), with four replicates and 20 cuttings each; II - mini-stumps of Tibouchina sellowiana were submitted to successive shoots collecting during the four seasons, in a split-plot design, with five replications of ten mini-stumps per experimental unit. From the shoots of mini-stumps, mini-cuttings were produced, which were initially kept in greenhouse and later transferred to full sun, in a 4 x 5 factorial arrangement (four seasons x five collections per season), with four replicates of 12 mini-cuttings. Superiority of epicormic shoots cuttings was reported when compared to the current-year shoots, which showed the highest rooting and leaves maintenance (42.50% and 55.00%, respectively), eliminating the use of IBA. High survival of mini-stumps (over 80%) and the mini-cuttings production (170mini-cuttings m-2 month-1) in clonal mini-garden and the mini-cuttings survival (above 80%) in the greenhouse demonstrated the technical feasibility, with summer as the most appropriate time to collect mini-cuttings.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100402
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/0103-8478cr20160098
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.47 n.11 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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