Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions

Detalhes bibliográficos
Autor(a) principal: Alencar,Nara Lídia Mendes
Data de Publicação: 2012
Outros Autores: Gomes-Filho,Enéas, Innecco,Renato
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100010
Resumo: Cereus jamacaru is a widespread Cactaceae of northeast Brazil, largely used as cattle food, and as ornamental and medicinal plant. Despite its distinguished importance, until now, there has been little information about the physiological aspects involved on its germination. The objective of this study was to evaluate the effect of light and temperature interaction on the seed germination and seedling establishment of this plant. The evaluated variables were germination percentage at 7 (% G7) and at 14 days after imbibition (% G14), germination average time index (GSI), germination average time (GAT), germination accumulated frequency (GAF), seedling dry mass and height. The highest % G14 and GSI were at 25 ºC in white light, whereas the highest GAT values were in darkness for all evaluated temperatures. On the other hand, % G14, GSI and GAF had the lowest values in darkness. Seeds germinated even in darkness, being however stimulated by the presence of light. The combination of white light and temperature of 25 or 30 °C is the most appropriate condition for seed germination tests.
id USP-18_1ccf43d9bc945907886a32b49b788d56
oai_identifier_str oai:scielo:S0103-90162012000100010
network_acronym_str USP-18
network_name_str Scientia Agrícola (Online)
repository_id_str
spelling Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditionscactus seedgermination percentagemandacaruphotoblastismCereus jamacaru is a widespread Cactaceae of northeast Brazil, largely used as cattle food, and as ornamental and medicinal plant. Despite its distinguished importance, until now, there has been little information about the physiological aspects involved on its germination. The objective of this study was to evaluate the effect of light and temperature interaction on the seed germination and seedling establishment of this plant. The evaluated variables were germination percentage at 7 (% G7) and at 14 days after imbibition (% G14), germination average time index (GSI), germination average time (GAT), germination accumulated frequency (GAF), seedling dry mass and height. The highest % G14 and GSI were at 25 ºC in white light, whereas the highest GAT values were in darkness for all evaluated temperatures. On the other hand, % G14, GSI and GAF had the lowest values in darkness. Seeds germinated even in darkness, being however stimulated by the presence of light. The combination of white light and temperature of 25 or 30 °C is the most appropriate condition for seed germination tests.Escola Superior de Agricultura "Luiz de Queiroz"2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100010Scientia Agricola v.69 n.1 2012reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162012000100010info:eu-repo/semantics/openAccessAlencar,Nara Lídia MendesGomes-Filho,EnéasInnecco,Renatoeng2012-02-16T00:00:00Zoai:scielo:S0103-90162012000100010Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2012-02-16T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
title Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
spellingShingle Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
Alencar,Nara Lídia Mendes
cactus seed
germination percentage
mandacaru
photoblastism
title_short Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
title_full Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
title_fullStr Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
title_full_unstemmed Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
title_sort Cereus jamacaru seed germination and initial seedling establishment as a function of light and temperature conditions
author Alencar,Nara Lídia Mendes
author_facet Alencar,Nara Lídia Mendes
Gomes-Filho,Enéas
Innecco,Renato
author_role author
author2 Gomes-Filho,Enéas
Innecco,Renato
author2_role author
author
dc.contributor.author.fl_str_mv Alencar,Nara Lídia Mendes
Gomes-Filho,Enéas
Innecco,Renato
dc.subject.por.fl_str_mv cactus seed
germination percentage
mandacaru
photoblastism
topic cactus seed
germination percentage
mandacaru
photoblastism
description Cereus jamacaru is a widespread Cactaceae of northeast Brazil, largely used as cattle food, and as ornamental and medicinal plant. Despite its distinguished importance, until now, there has been little information about the physiological aspects involved on its germination. The objective of this study was to evaluate the effect of light and temperature interaction on the seed germination and seedling establishment of this plant. The evaluated variables were germination percentage at 7 (% G7) and at 14 days after imbibition (% G14), germination average time index (GSI), germination average time (GAT), germination accumulated frequency (GAF), seedling dry mass and height. The highest % G14 and GSI were at 25 ºC in white light, whereas the highest GAT values were in darkness for all evaluated temperatures. On the other hand, % G14, GSI and GAF had the lowest values in darkness. Seeds germinated even in darkness, being however stimulated by the presence of light. The combination of white light and temperature of 25 or 30 °C is the most appropriate condition for seed germination tests.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-01
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=S0103-90162012000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162012000100010
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.69 n.1 2012
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
_version_ 1748936462832762880

Registros relacionados