Pollen grain viability of coconut accessions at low temperatures
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346 |
Resumo: | The aim of this study was to evaluate the storage potential of the pollen grains of Brazil Green Dwarf (BGD), Brazilian Tall (BRA) and Cameroon Red Dwarf (CRD) coconut accessions under different storage conditions. Representative plants of BGD, BRA and CRD accessions were selected from the Coconut Active Germplasm Bank of Embrapa Coastal Tablelands. The pollen grains were collected, placed in cryotubes and maintained under the following storage conditions: T1, refrigerator (-4°C); T2, freezer (-20°C); T3, ultra-freezer (- 80°C) and T4, liquid nitrogen (-196°C). The pollen grain viability was determined by staining with 1% acetic carmine and in vitro germination in a Lora culture medium at 30 and 60 days after the storage. Storage under refrigerator (-4°C), freezer (-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazilian Tall coconut accession. Storage under freezer (-20°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Cameroon Red Dwarf coconut accession. Storage under freezer (-20°C and-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazil Green Dwarf coconut accession. The pollen grain viability of the Brazilian Tall coconut accession is stable after 30 and 60 days of storage. |
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Acta Scientiarum. Agronomy (Online) |
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Pollen grain viability of coconut accessions at low temperaturesCocos nucifera L.genetic resourcesconservationmeio de culturagerminação in vitroFitotecnia- Cultura de TecidosThe aim of this study was to evaluate the storage potential of the pollen grains of Brazil Green Dwarf (BGD), Brazilian Tall (BRA) and Cameroon Red Dwarf (CRD) coconut accessions under different storage conditions. Representative plants of BGD, BRA and CRD accessions were selected from the Coconut Active Germplasm Bank of Embrapa Coastal Tablelands. The pollen grains were collected, placed in cryotubes and maintained under the following storage conditions: T1, refrigerator (-4°C); T2, freezer (-20°C); T3, ultra-freezer (- 80°C) and T4, liquid nitrogen (-196°C). The pollen grain viability was determined by staining with 1% acetic carmine and in vitro germination in a Lora culture medium at 30 and 60 days after the storage. Storage under refrigerator (-4°C), freezer (-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazilian Tall coconut accession. Storage under freezer (-20°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Cameroon Red Dwarf coconut accession. Storage under freezer (-20°C and-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazil Green Dwarf coconut accession. The pollen grain viability of the Brazilian Tall coconut accession is stable after 30 and 60 days of storage. Universidade Estadual de Maringá2014-04-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpesquisa empíricaapplication/pdfimage/jpeghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1734610.4025/actasciagron.v36i2.17346Acta Scientiarum. Agronomy; Vol 36 No 2 (2014); 227-232Acta Scientiarum. Agronomy; v. 36 n. 2 (2014); 227-2321807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346/pdf_13http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346/751375141646Machado, Caroline De AraújoMoura, Catrine Regina FeitosaLemos, Eurico Eduardo Pinto deRamos, Semíramis Rabelo RamalhoRibeiro, Francisco EliasLédo, Ana Da Silvainfo:eu-repo/semantics/openAccess2014-05-19T11:30:57Zoai:periodicos.uem.br/ojs:article/17346Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2014-05-19T11:30:57Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Pollen grain viability of coconut accessions at low temperatures |
title |
Pollen grain viability of coconut accessions at low temperatures |
spellingShingle |
Pollen grain viability of coconut accessions at low temperatures Machado, Caroline De Araújo Cocos nucifera L. genetic resources conservation meio de cultura germinação in vitro Fitotecnia- Cultura de Tecidos |
title_short |
Pollen grain viability of coconut accessions at low temperatures |
title_full |
Pollen grain viability of coconut accessions at low temperatures |
title_fullStr |
Pollen grain viability of coconut accessions at low temperatures |
title_full_unstemmed |
Pollen grain viability of coconut accessions at low temperatures |
title_sort |
Pollen grain viability of coconut accessions at low temperatures |
author |
Machado, Caroline De Araújo |
author_facet |
Machado, Caroline De Araújo Moura, Catrine Regina Feitosa Lemos, Eurico Eduardo Pinto de Ramos, Semíramis Rabelo Ramalho Ribeiro, Francisco Elias Lédo, Ana Da Silva |
author_role |
author |
author2 |
Moura, Catrine Regina Feitosa Lemos, Eurico Eduardo Pinto de Ramos, Semíramis Rabelo Ramalho Ribeiro, Francisco Elias Lédo, Ana Da Silva |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Machado, Caroline De Araújo Moura, Catrine Regina Feitosa Lemos, Eurico Eduardo Pinto de Ramos, Semíramis Rabelo Ramalho Ribeiro, Francisco Elias Lédo, Ana Da Silva |
dc.subject.por.fl_str_mv |
Cocos nucifera L. genetic resources conservation meio de cultura germinação in vitro Fitotecnia- Cultura de Tecidos |
topic |
Cocos nucifera L. genetic resources conservation meio de cultura germinação in vitro Fitotecnia- Cultura de Tecidos |
description |
The aim of this study was to evaluate the storage potential of the pollen grains of Brazil Green Dwarf (BGD), Brazilian Tall (BRA) and Cameroon Red Dwarf (CRD) coconut accessions under different storage conditions. Representative plants of BGD, BRA and CRD accessions were selected from the Coconut Active Germplasm Bank of Embrapa Coastal Tablelands. The pollen grains were collected, placed in cryotubes and maintained under the following storage conditions: T1, refrigerator (-4°C); T2, freezer (-20°C); T3, ultra-freezer (- 80°C) and T4, liquid nitrogen (-196°C). The pollen grain viability was determined by staining with 1% acetic carmine and in vitro germination in a Lora culture medium at 30 and 60 days after the storage. Storage under refrigerator (-4°C), freezer (-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazilian Tall coconut accession. Storage under freezer (-20°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Cameroon Red Dwarf coconut accession. Storage under freezer (-20°C and-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability of the Brazil Green Dwarf coconut accession. The pollen grain viability of the Brazilian Tall coconut accession is stable after 30 and 60 days of storage. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion pesquisa empírica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346 10.4025/actasciagron.v36i2.17346 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346 |
identifier_str_mv |
10.4025/actasciagron.v36i2.17346 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346/pdf_13 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346/751375141646 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf image/jpeg |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 36 No 2 (2014); 227-232 Acta Scientiarum. Agronomy; v. 36 n. 2 (2014); 227-232 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1799305908793114624 |