Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.14295/cs.v13.3523 http://hdl.handle.net/11449/242011 |
Resumo: | This work aimed to analyze diaspores biometric characteristics, the effect of different temperatures and light regimes on seed germination, and the initial seedlings' growth of Ptychosperma macarthurii. The experiment was carried out at the Laboratory of Horticultural Seeds at São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal. The individual diaspores biometric analysis was performed by measuring the length, diameter, mass, and weight of a thousand diaspores, the data were subjected to descriptive statistical analysis. It was adopted a completely randomized design in a 5 × 2 factorial with four replications of 25 seeds per treatment. Five temperatures (25; 30; 35; 20-30 and 25-35 °C) and two light regimes (presence and total absence of light) were evaluated. The variables analyzed were germination, germination speed index, the average length of the primary root and shoot, diameter of the stem, and seedlings total dry mass. The length, diameter, and average weight of the diaspores were 12.54 mm, 6.05 mm, and 0.1610 g, respectively. The seeds of Ptychosperma macarthurii germinated in a wide temperature range, reaching a higher germination percentage at 25 °C and a higher germination speed index at 30 °C, being classified as neutral photoblastics. The constant temperature of 30 °C provided higher mean values for all seedlings' biometric characteristics. |
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Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae)growthHeatpalm treephotoblastiaThis work aimed to analyze diaspores biometric characteristics, the effect of different temperatures and light regimes on seed germination, and the initial seedlings' growth of Ptychosperma macarthurii. The experiment was carried out at the Laboratory of Horticultural Seeds at São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal. The individual diaspores biometric analysis was performed by measuring the length, diameter, mass, and weight of a thousand diaspores, the data were subjected to descriptive statistical analysis. It was adopted a completely randomized design in a 5 × 2 factorial with four replications of 25 seeds per treatment. Five temperatures (25; 30; 35; 20-30 and 25-35 °C) and two light regimes (presence and total absence of light) were evaluated. The variables analyzed were germination, germination speed index, the average length of the primary root and shoot, diameter of the stem, and seedlings total dry mass. The length, diameter, and average weight of the diaspores were 12.54 mm, 6.05 mm, and 0.1610 g, respectively. The seeds of Ptychosperma macarthurii germinated in a wide temperature range, reaching a higher germination percentage at 25 °C and a higher germination speed index at 30 °C, being classified as neutral photoblastics. The constant temperature of 30 °C provided higher mean values for all seedlings' biometric characteristics.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Paulista State UniversityPaulista State UniversityUniversidade Estadual Paulista (UNESP)De Souza, Antonio Maricélio Borges [UNESP]Ferreira, Kássia Barros [UNESP]Pivetta, Kathia Fernandes Lopes [UNESP]Ferraz, Marcos Vieira [UNESP]2023-03-02T06:30:11Z2023-03-02T06:30:11Z2022-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.14295/cs.v13.3523Comunicata Scientiae, v. 13.2176-9079http://hdl.handle.net/11449/24201110.14295/cs.v13.35232-s2.0-85133510881Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComunicata Scientiaeinfo:eu-repo/semantics/openAccess2023-03-02T06:30:11Zoai:repositorio.unesp.br:11449/242011Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-02T06:30:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
title |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
spellingShingle |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) De Souza, Antonio Maricélio Borges [UNESP] growth Heat palm tree photoblastia |
title_short |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
title_full |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
title_fullStr |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
title_full_unstemmed |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
title_sort |
Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae) |
author |
De Souza, Antonio Maricélio Borges [UNESP] |
author_facet |
De Souza, Antonio Maricélio Borges [UNESP] Ferreira, Kássia Barros [UNESP] Pivetta, Kathia Fernandes Lopes [UNESP] Ferraz, Marcos Vieira [UNESP] |
author_role |
author |
author2 |
Ferreira, Kássia Barros [UNESP] Pivetta, Kathia Fernandes Lopes [UNESP] Ferraz, Marcos Vieira [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
De Souza, Antonio Maricélio Borges [UNESP] Ferreira, Kássia Barros [UNESP] Pivetta, Kathia Fernandes Lopes [UNESP] Ferraz, Marcos Vieira [UNESP] |
dc.subject.por.fl_str_mv |
growth Heat palm tree photoblastia |
topic |
growth Heat palm tree photoblastia |
description |
This work aimed to analyze diaspores biometric characteristics, the effect of different temperatures and light regimes on seed germination, and the initial seedlings' growth of Ptychosperma macarthurii. The experiment was carried out at the Laboratory of Horticultural Seeds at São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal. The individual diaspores biometric analysis was performed by measuring the length, diameter, mass, and weight of a thousand diaspores, the data were subjected to descriptive statistical analysis. It was adopted a completely randomized design in a 5 × 2 factorial with four replications of 25 seeds per treatment. Five temperatures (25; 30; 35; 20-30 and 25-35 °C) and two light regimes (presence and total absence of light) were evaluated. The variables analyzed were germination, germination speed index, the average length of the primary root and shoot, diameter of the stem, and seedlings total dry mass. The length, diameter, and average weight of the diaspores were 12.54 mm, 6.05 mm, and 0.1610 g, respectively. The seeds of Ptychosperma macarthurii germinated in a wide temperature range, reaching a higher germination percentage at 25 °C and a higher germination speed index at 30 °C, being classified as neutral photoblastics. The constant temperature of 30 °C provided higher mean values for all seedlings' biometric characteristics. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-07-01 2023-03-02T06:30:11Z 2023-03-02T06:30:11Z |
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://dx.doi.org/10.14295/cs.v13.3523 Comunicata Scientiae, v. 13. 2176-9079 http://hdl.handle.net/11449/242011 10.14295/cs.v13.3523 2-s2.0-85133510881 |
url |
http://dx.doi.org/10.14295/cs.v13.3523 http://hdl.handle.net/11449/242011 |
identifier_str_mv |
Comunicata Scientiae, v. 13. 2176-9079 10.14295/cs.v13.3523 2-s2.0-85133510881 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Comunicata Scientiae |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1792961523867451392 |