Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia

Detalhes bibliográficos
Autor(a) principal: Pires, Patricia Pereira
Data de Publicação: 2013
Outros Autores: Wendling, Ivar, Brondani, Gilvano
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/37304
Resumo: Considering the limitations of vegetative propagation of Araucaria angustifolia and the total absence of information regarding the minicuttings technique in this species, this study aimed to evaluate the influence of concentrations of indolbutyric acid (IBA) in minicuttings technique of Araucaria angustifolia, as well as the characterization of growth habit (orthotropic or plagiotropic) of the minicuttings produced. The Minigarden comprised ministumps propagated by seeds. The basal region of minicuttings was exposed during 10s in solutions containing concentrations 0, 1.5, 3.0 and 4.0 gL-1 IBA after what they were transferred to a greenhouse for 120 days. The design was completely randomized with five replications of 15 minicuttings. Increasing IBA concentrations favored a little increase in survival (up to 3.0 gL-1), number of roots of minicuttings (estimate up to 2.3 gL-1) and rooting (up to 1.5 gL-1), causing inhibition at the highest concentration, however the low 32% best rooting result obtained. According to the results there is a need to develop more studies on the specie, especially when considering the nutritional and environmental propagation. The growing habit of all rooted minicuttings was orthotropic, showing the potential of the technique in cloning selected families of the species.
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spelling Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifóliaIndol-butyric acid and orthotropism in minicutting of Araucaria angustifoliaClonagemConíferaCloningConiferConsidering the limitations of vegetative propagation of Araucaria angustifolia and the total absence of information regarding the minicuttings technique in this species, this study aimed to evaluate the influence of concentrations of indolbutyric acid (IBA) in minicuttings technique of Araucaria angustifolia, as well as the characterization of growth habit (orthotropic or plagiotropic) of the minicuttings produced. The Minigarden comprised ministumps propagated by seeds. The basal region of minicuttings was exposed during 10s in solutions containing concentrations 0, 1.5, 3.0 and 4.0 gL-1 IBA after what they were transferred to a greenhouse for 120 days. The design was completely randomized with five replications of 15 minicuttings. Increasing IBA concentrations favored a little increase in survival (up to 3.0 gL-1), number of roots of minicuttings (estimate up to 2.3 gL-1) and rooting (up to 1.5 gL-1), causing inhibition at the highest concentration, however the low 32% best rooting result obtained. According to the results there is a need to develop more studies on the specie, especially when considering the nutritional and environmental propagation. The growing habit of all rooted minicuttings was orthotropic, showing the potential of the technique in cloning selected families of the species.Considerando a dificuldade da propagação vegetativa de araucária e a total inexistência de informações acerca da miniestaquia nesta espécie, este trabalho objetivou avaliar a influência de concentrações de ácido indolbutírico (AIB) na miniestaquia de Araucaria angustifolia, bem como a caracterização do hábito de crescimento (ortotrópico ou plagiotrópico) das mudas produzidas. O minijardim foi formado por minicepas provenientes de mudas propagadas por sementes. A região basal das miniestacas foi exposta durante 10s a soluções de 0; 1,5; 3,0; e 4,0 g.L-1 de AIB, após foram mantidas em casa de vegetação por 120 dias. Adotou-se o delineamento experimental inteiramente casualizado com cinco repetições de 15 miniestacas. O aumento das concentrações de AIB promoveu pequeno incremento na sobrevivência (até 3,0 g.L-1), número de raízes das miniestacas (até estimativa de 2,3 g.L-1) e enraizamento (até 1,5 g.L-1), embora o melhor enraizamento obtido de apenas 32% possa ser considerado baixo. De acordo com os resultados, há a necessidade do desenvolvimento de mais estudos com essa espécie, principalmente ao considerar os aspectos nutricionais e ambientais de propagação. O hábito de crescimento de todas as mudas formadas por miniestaquia apresentou-se ortotrópico, denotando o potencial da tecnologia para a clonagem de famílias selecionadas da espécie.Sociedade de Investigações Florestais2019-10-18T19:24:32Z2019-10-18T19:24:32Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPIRES, P. P.; WENDLING, I.; BRONDANI, G. Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia. Revista Árvore, Viçosa, MG, v. 37, n. 3, p. 393-399, 2013.http://repositorio.ufla.br/jspui/handle/1/37304Revista Árvorereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessPires, Patricia PereiraWendling, IvarBrondani, Gilvanopor2019-10-18T19:24:33Zoai:localhost:1/37304Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-10-18T19:24:33Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
Indol-butyric acid and orthotropism in minicutting of Araucaria angustifolia
title Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
spellingShingle Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
Pires, Patricia Pereira
Clonagem
Conífera
Cloning
Conifer
title_short Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
title_full Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
title_fullStr Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
title_full_unstemmed Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
title_sort Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia
author Pires, Patricia Pereira
author_facet Pires, Patricia Pereira
Wendling, Ivar
Brondani, Gilvano
author_role author
author2 Wendling, Ivar
Brondani, Gilvano
author2_role author
author
dc.contributor.author.fl_str_mv Pires, Patricia Pereira
Wendling, Ivar
Brondani, Gilvano
dc.subject.por.fl_str_mv Clonagem
Conífera
Cloning
Conifer
topic Clonagem
Conífera
Cloning
Conifer
description Considering the limitations of vegetative propagation of Araucaria angustifolia and the total absence of information regarding the minicuttings technique in this species, this study aimed to evaluate the influence of concentrations of indolbutyric acid (IBA) in minicuttings technique of Araucaria angustifolia, as well as the characterization of growth habit (orthotropic or plagiotropic) of the minicuttings produced. The Minigarden comprised ministumps propagated by seeds. The basal region of minicuttings was exposed during 10s in solutions containing concentrations 0, 1.5, 3.0 and 4.0 gL-1 IBA after what they were transferred to a greenhouse for 120 days. The design was completely randomized with five replications of 15 minicuttings. Increasing IBA concentrations favored a little increase in survival (up to 3.0 gL-1), number of roots of minicuttings (estimate up to 2.3 gL-1) and rooting (up to 1.5 gL-1), causing inhibition at the highest concentration, however the low 32% best rooting result obtained. According to the results there is a need to develop more studies on the specie, especially when considering the nutritional and environmental propagation. The growing habit of all rooted minicuttings was orthotropic, showing the potential of the technique in cloning selected families of the species.
publishDate 2013
dc.date.none.fl_str_mv 2013
2019-10-18T19:24:32Z
2019-10-18T19:24:32Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv PIRES, P. P.; WENDLING, I.; BRONDANI, G. Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia. Revista Árvore, Viçosa, MG, v. 37, n. 3, p. 393-399, 2013.
http://repositorio.ufla.br/jspui/handle/1/37304
identifier_str_mv PIRES, P. P.; WENDLING, I.; BRONDANI, G. Ácido indolbutírico e ortotropismo na miniestaquia de Araucaria angustifólia. Revista Árvore, Viçosa, MG, v. 37, n. 3, p. 393-399, 2013.
url http://repositorio.ufla.br/jspui/handle/1/37304
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedade de Investigações Florestais
publisher.none.fl_str_mv Sociedade de Investigações Florestais
dc.source.none.fl_str_mv Revista Árvore
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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