Vegetative propagation of the endangered Azorean tree, Picconia azorica
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.3/1226 |
Resumo: | Picconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. Rooting substrate, IBA concentration, and the portion of the area of the terminal leaf pair kept on stem cuttings, when tested in early spring (semi-hardwood cuttings) and autumn (hardwood cuttings) failed to produce any rooted cuttings. In contrast, air layering performed in the autumn on lateral branches of adult trees was successful. After 12 months, air layers treated with 5000 ppm of IBA in talc achieved 65% rooting, while those treated with 2500 ppm IBA or without growth regulator only attained 41 and 28% rooting, respectively. Our study indicates that P. azorica is relatively easy to propagate by air layering. This method could be used to restore natural populations of P. azorica when seeds are not available or plant competition impairs natural regeneration. |
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Vegetative propagation of the endangered Azorean tree, Picconia azoricaAir LayeringEndemic PlantsPicconia azoticaRootingStem CuttingsVegetative PropagationAzores IslandsPicconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. Rooting substrate, IBA concentration, and the portion of the area of the terminal leaf pair kept on stem cuttings, when tested in early spring (semi-hardwood cuttings) and autumn (hardwood cuttings) failed to produce any rooted cuttings. In contrast, air layering performed in the autumn on lateral branches of adult trees was successful. After 12 months, air layers treated with 5000 ppm of IBA in talc achieved 65% rooting, while those treated with 2500 ppm IBA or without growth regulator only attained 41 and 28% rooting, respectively. Our study indicates that P. azorica is relatively easy to propagate by air layering. This method could be used to restore natural populations of P. azorica when seeds are not available or plant competition impairs natural regeneration.Universidade dos AçoresRepositório da Universidade dos AçoresMartins, JoséMoreira, OrlandoSilva, LuísMoura, Mónica2011-10-07T10:13:19Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1226eng"ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 28 (2011): 39-460873-4704info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:28:52Zoai:repositorio.uac.pt:10400.3/1226Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:06.379057Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
title |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
spellingShingle |
Vegetative propagation of the endangered Azorean tree, Picconia azorica Martins, José Air Layering Endemic Plants Picconia azotica Rooting Stem Cuttings Vegetative Propagation Azores Islands |
title_short |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
title_full |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
title_fullStr |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
title_full_unstemmed |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
title_sort |
Vegetative propagation of the endangered Azorean tree, Picconia azorica |
author |
Martins, José |
author_facet |
Martins, José Moreira, Orlando Silva, Luís Moura, Mónica |
author_role |
author |
author2 |
Moreira, Orlando Silva, Luís Moura, Mónica |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Martins, José Moreira, Orlando Silva, Luís Moura, Mónica |
dc.subject.por.fl_str_mv |
Air Layering Endemic Plants Picconia azotica Rooting Stem Cuttings Vegetative Propagation Azores Islands |
topic |
Air Layering Endemic Plants Picconia azotica Rooting Stem Cuttings Vegetative Propagation Azores Islands |
description |
Picconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. Rooting substrate, IBA concentration, and the portion of the area of the terminal leaf pair kept on stem cuttings, when tested in early spring (semi-hardwood cuttings) and autumn (hardwood cuttings) failed to produce any rooted cuttings. In contrast, air layering performed in the autumn on lateral branches of adult trees was successful. After 12 months, air layers treated with 5000 ppm of IBA in talc achieved 65% rooting, while those treated with 2500 ppm IBA or without growth regulator only attained 41 and 28% rooting, respectively. Our study indicates that P. azorica is relatively easy to propagate by air layering. This method could be used to restore natural populations of P. azorica when seeds are not available or plant competition impairs natural regeneration. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-10-07T10:13:19Z 2011 2011-01-01T00:00:00Z |
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 |
http://hdl.handle.net/10400.3/1226 |
url |
http://hdl.handle.net/10400.3/1226 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 28 (2011): 39-46 0873-4704 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade dos Açores |
publisher.none.fl_str_mv |
Universidade dos Açores |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130685983686656 |