Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of Seed Science |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000100016 |
Resumo: | Despite propagation of the cassava crop be done by cuttings for commercial purposes, the majority of accesses keeps active the sexual propagation system; what is essential to genetic breeding programs. Cassava seeds, however, have low and uneven germination rates. Considering such event, the objective of this study was to evaluate the efficiency of the storage, and different pre-germination treatments, on cassava seedling emergence. For this, an experiment was carried out with seeds obtained by open pollination between plants of four sweet cassava cultivars, with 10 pre-germination treatments; in addition to a control treatment. The viability of seeds subjected to different treatments was assessed by tetrazolium test; and the assessment of seedling emergence was performed by daily counts of the number of emerged seedlings. Data obtained were expressed in: emergence percentage; emergence speed index; and mean time of seedling emergence. It was concluded that storage, at 4 °C, during one year, increases seed emergence percentage and favors cassava seedling emergence speed; and that the dry heat (60 ºC), during seven and 14 days, also favors their emergence speed . |
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Journal of Seed Science |
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Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlingsManihot esculentaseed technologyseed dormancyseed germinationDespite propagation of the cassava crop be done by cuttings for commercial purposes, the majority of accesses keeps active the sexual propagation system; what is essential to genetic breeding programs. Cassava seeds, however, have low and uneven germination rates. Considering such event, the objective of this study was to evaluate the efficiency of the storage, and different pre-germination treatments, on cassava seedling emergence. For this, an experiment was carried out with seeds obtained by open pollination between plants of four sweet cassava cultivars, with 10 pre-germination treatments; in addition to a control treatment. The viability of seeds subjected to different treatments was assessed by tetrazolium test; and the assessment of seedling emergence was performed by daily counts of the number of emerged seedlings. Data obtained were expressed in: emergence percentage; emergence speed index; and mean time of seedling emergence. It was concluded that storage, at 4 °C, during one year, increases seed emergence percentage and favors cassava seedling emergence speed; and that the dry heat (60 ºC), during seven and 14 days, also favors their emergence speed .ABRATES - Associação Brasileira de Tecnologia de Sementes2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000100016Journal of Seed Science v.35 n.1 2013reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/S2317-15372013000100016info:eu-repo/semantics/openAccessMezzalira,ItamaraCosta,Caroline JácomeVieira,Eduardo AlanoFialho,Josefino de FreitasSilva,Marilia SantosDenke,Marcelo LuizSilva,Karina Nascimento daeng2013-06-21T00:00:00Zoai:scielo:S2317-15372013000100016Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2013-06-21T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false |
dc.title.none.fl_str_mv |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
title |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
spellingShingle |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings Mezzalira,Itamara Manihot esculenta seed technology seed dormancy seed germination |
title_short |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
title_full |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
title_fullStr |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
title_full_unstemmed |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
title_sort |
Pre-germination treatments and storage of cassava seeds and their correlation with emergence of seedlings |
author |
Mezzalira,Itamara |
author_facet |
Mezzalira,Itamara Costa,Caroline Jácome Vieira,Eduardo Alano Fialho,Josefino de Freitas Silva,Marilia Santos Denke,Marcelo Luiz Silva,Karina Nascimento da |
author_role |
author |
author2 |
Costa,Caroline Jácome Vieira,Eduardo Alano Fialho,Josefino de Freitas Silva,Marilia Santos Denke,Marcelo Luiz Silva,Karina Nascimento da |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Mezzalira,Itamara Costa,Caroline Jácome Vieira,Eduardo Alano Fialho,Josefino de Freitas Silva,Marilia Santos Denke,Marcelo Luiz Silva,Karina Nascimento da |
dc.subject.por.fl_str_mv |
Manihot esculenta seed technology seed dormancy seed germination |
topic |
Manihot esculenta seed technology seed dormancy seed germination |
description |
Despite propagation of the cassava crop be done by cuttings for commercial purposes, the majority of accesses keeps active the sexual propagation system; what is essential to genetic breeding programs. Cassava seeds, however, have low and uneven germination rates. Considering such event, the objective of this study was to evaluate the efficiency of the storage, and different pre-germination treatments, on cassava seedling emergence. For this, an experiment was carried out with seeds obtained by open pollination between plants of four sweet cassava cultivars, with 10 pre-germination treatments; in addition to a control treatment. The viability of seeds subjected to different treatments was assessed by tetrazolium test; and the assessment of seedling emergence was performed by daily counts of the number of emerged seedlings. Data obtained were expressed in: emergence percentage; emergence speed index; and mean time of seedling emergence. It was concluded that storage, at 4 °C, during one year, increases seed emergence percentage and favors cassava seedling emergence speed; and that the dry heat (60 ºC), during seven and 14 days, also favors their emergence speed . |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000100016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000100016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S2317-15372013000100016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
publisher.none.fl_str_mv |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
dc.source.none.fl_str_mv |
Journal of Seed Science v.35 n.1 2013 reponame:Journal of Seed Science instname:Associação Brasileira de Tecnologia de Sementes (ABRATES) instacron:ABRATES |
instname_str |
Associação Brasileira de Tecnologia de Sementes (ABRATES) |
instacron_str |
ABRATES |
institution |
ABRATES |
reponame_str |
Journal of Seed Science |
collection |
Journal of Seed Science |
repository.name.fl_str_mv |
Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES) |
repository.mail.fl_str_mv |
||abrates@abrates.org.br |
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1754212981597536256 |