Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis

Detalhes bibliográficos
Autor(a) principal: Arenhart, Rafael Augusto
Data de Publicação: 2021
Outros Autores: Zaffari, Gilmar Roberto
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/844
Resumo: Eucalyptus grandis is one of the most cultivated forestry species in Brazil due to its fast growth andgood timber quality. With the objective of cloning E. grandis for seedling production, this study aimed to improve the micropropagation protocol by direct organogenesis. Micro cuttings from in vitro germinated seedlings wereinoculated in culture medium with different levels of growth regulators during the multiplication and rooting stages. During the multiplication stage, the addition of growth regulators did not promote significant increase inbud number and height when compared to the control. Addition of ANA and IBA to the medium promoted higher rate of rooting and growth of roots, but an increase in concentration from 0,5 to 1mg/L of these growth regulatorsreduced the root growth. The results of this study evidenced the possibility of micropropagation of Eucalyptus grandis by in vitro direct organogenesis.
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spelling Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesisRegeneração de plântulas de Eucalyptus grandis a partir de organogênese direta in vitromicropropagaçãoreguladores de crescimentoclonagem.micropropagationgrowth regulatorscloningEucalyptus grandis is one of the most cultivated forestry species in Brazil due to its fast growth andgood timber quality. With the objective of cloning E. grandis for seedling production, this study aimed to improve the micropropagation protocol by direct organogenesis. Micro cuttings from in vitro germinated seedlings wereinoculated in culture medium with different levels of growth regulators during the multiplication and rooting stages. During the multiplication stage, the addition of growth regulators did not promote significant increase inbud number and height when compared to the control. Addition of ANA and IBA to the medium promoted higher rate of rooting and growth of roots, but an increase in concentration from 0,5 to 1mg/L of these growth regulatorsreduced the root growth. The results of this study evidenced the possibility of micropropagation of Eucalyptus grandis by in vitro direct organogenesis. O Eucalyptus grandisé a espécie florestal que está entre as mais cultivadas no Brasil devido a seu rápido crescimento e por apresentar alta qualidade da madeira. Com o objetivo de clonar o E. grandis para a produção de mudas, este trabalho propôs melhorar o protocolo de micropropagação por organogênese direta. Segmentos nodais das plântulas germinadas in vitro foram inoculados em meio de cultura com diferentes níveis de reguladores de crescimento na fase de proliferação e enraizamento. Na fase de proliferação, a adição de reguladores de crescimento não promoveu aumento significativo quanto ao número e à altura de brotos em comparação ao meio de cultura ausente de reguladores. O efeito da adição de ANA e AIB ao meio de culturapromoveu elevada taxa de enraizamento e crescimento das raízes, porém o aumento da concentração de 0,5 para 1mg/L destes reguladores reduziu o crescimento das raízes. Os resultados deste trabalho evidenciam a possibilidade de micropropagação de Eucalyptus grandis a partir de organogênese direta. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-02-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/844Agropecuária Catarinense Journal; Vol. 21 No. 1 (2008); 74-78Agropecuária Catarinense; v. 21 n. 1 (2008); 74-782525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/844/750Copyright (c) 2020 Rafael Augusto Arenharthttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessArenhart, Rafael AugustoZaffari, Gilmar Roberto2021-02-13T02:36:01Zoai:ojs.publicacoes.epagri.sc.gov.br:article/844Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-02-13T02:36:01Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
Regeneração de plântulas de Eucalyptus grandis a partir de organogênese direta in vitro
title Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
spellingShingle Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
Arenhart, Rafael Augusto
micropropagação
reguladores de crescimento
clonagem.
micropropagation
growth regulators
cloning
title_short Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
title_full Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
title_fullStr Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
title_full_unstemmed Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
title_sort Seedling regeneration of Eucalyptus grandis by in vitro direct organogenesis
author Arenhart, Rafael Augusto
author_facet Arenhart, Rafael Augusto
Zaffari, Gilmar Roberto
author_role author
author2 Zaffari, Gilmar Roberto
author2_role author
dc.contributor.author.fl_str_mv Arenhart, Rafael Augusto
Zaffari, Gilmar Roberto
dc.subject.por.fl_str_mv micropropagação
reguladores de crescimento
clonagem.
micropropagation
growth regulators
cloning
topic micropropagação
reguladores de crescimento
clonagem.
micropropagation
growth regulators
cloning
description Eucalyptus grandis is one of the most cultivated forestry species in Brazil due to its fast growth andgood timber quality. With the objective of cloning E. grandis for seedling production, this study aimed to improve the micropropagation protocol by direct organogenesis. Micro cuttings from in vitro germinated seedlings wereinoculated in culture medium with different levels of growth regulators during the multiplication and rooting stages. During the multiplication stage, the addition of growth regulators did not promote significant increase inbud number and height when compared to the control. Addition of ANA and IBA to the medium promoted higher rate of rooting and growth of roots, but an increase in concentration from 0,5 to 1mg/L of these growth regulatorsreduced the root growth. The results of this study evidenced the possibility of micropropagation of Eucalyptus grandis by in vitro direct organogenesis.
publishDate 2021
dc.date.none.fl_str_mv 2021-02-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/844
url https://publicacoes.epagri.sc.gov.br/rac/article/view/844
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/844/750
dc.rights.driver.fl_str_mv Copyright (c) 2020 Rafael Augusto Arenhart
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Rafael Augusto Arenhart
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 21 No. 1 (2008); 74-78
Agropecuária Catarinense; v. 21 n. 1 (2008); 74-78
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
_version_ 1754917260222267392

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