Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)

Detalhes bibliográficos
Autor(a) principal: Socolowski,Fábio
Data de Publicação: 2010
Outros Autores: Vieira,Daniela Cristine Mascia, Simão,Edson, Takaki,Massanori
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Biota Neotropica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000200005
Resumo: The objective of the present study was to evaluate the effects of light and temperature on germination of Cereus pernambucensis seeds, a species of columnar cactus native to Brazil and naturally incident in the restinga. Cereus pernambucensis seeds were incubated under different temperatures, from 5 to 45 °C, with 5 °C intervals, and under alternating temperatures of 15-20 °C, 15-30 °C, 20-25 °C, 20-30 °C, 20-35 °C, 25-30 °C, 25-35 °C, and 30-35 °C, both under continuous white light and dark. The seeds were also incubated in a gradient of phytochrome photoequilibrium at 25 °C. The highest percentage germination in this species was between 25 and 30 °C. The minimum temperature was between 15 and 20 °C and the maximum between 35 and 40 °C. Alternating temperatures did not affect the percentage of seed germination, but it did alter the rate and synchronization indexes. Seeds incubated in the dark did not germinate under any of the conditions tested, indicating that this species when cultivated present light sensitive seeds controlled by phytochrome. The seeds can tolerate a lot of shade conditions, germinating under very low fluence response of phytochrome.
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spelling Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)columnar cactiCereus pernambucensisrestingaThe objective of the present study was to evaluate the effects of light and temperature on germination of Cereus pernambucensis seeds, a species of columnar cactus native to Brazil and naturally incident in the restinga. Cereus pernambucensis seeds were incubated under different temperatures, from 5 to 45 °C, with 5 °C intervals, and under alternating temperatures of 15-20 °C, 15-30 °C, 20-25 °C, 20-30 °C, 20-35 °C, 25-30 °C, 25-35 °C, and 30-35 °C, both under continuous white light and dark. The seeds were also incubated in a gradient of phytochrome photoequilibrium at 25 °C. The highest percentage germination in this species was between 25 and 30 °C. The minimum temperature was between 15 and 20 °C and the maximum between 35 and 40 °C. Alternating temperatures did not affect the percentage of seed germination, but it did alter the rate and synchronization indexes. Seeds incubated in the dark did not germinate under any of the conditions tested, indicating that this species when cultivated present light sensitive seeds controlled by phytochrome. The seeds can tolerate a lot of shade conditions, germinating under very low fluence response of phytochrome.Instituto Virtual da Biodiversidade | BIOTA - FAPESP2010-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000200005Biota Neotropica v.10 n.2 2010reponame:Biota Neotropicainstname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)instacron:BIOTA - FAPESP10.1590/S1676-06032010000200005info:eu-repo/semantics/openAccessSocolowski,FábioVieira,Daniela Cristine MasciaSimão,EdsonTakaki,Massanorieng2011-07-29T00:00:00Zoai:scielo:S1676-06032010000200005Revistahttps://www.biotaneotropica.org.br/v20n1/pt/https://old.scielo.br/oai/scielo-oai.php||juliosa@unifap.br1676-06111676-0611opendoar:2011-07-29T00:00Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)false
dc.title.none.fl_str_mv Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
title Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
spellingShingle Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
Socolowski,Fábio
columnar cacti
Cereus pernambucensis
restinga
title_short Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
title_full Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
title_fullStr Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
title_full_unstemmed Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
title_sort Influence of light and temperature on seed germination of Cereus pernambucensis Lemaire (Cactaceae)
author Socolowski,Fábio
author_facet Socolowski,Fábio
Vieira,Daniela Cristine Mascia
Simão,Edson
Takaki,Massanori
author_role author
author2 Vieira,Daniela Cristine Mascia
Simão,Edson
Takaki,Massanori
author2_role author
author
author
dc.contributor.author.fl_str_mv Socolowski,Fábio
Vieira,Daniela Cristine Mascia
Simão,Edson
Takaki,Massanori
dc.subject.por.fl_str_mv columnar cacti
Cereus pernambucensis
restinga
topic columnar cacti
Cereus pernambucensis
restinga
description The objective of the present study was to evaluate the effects of light and temperature on germination of Cereus pernambucensis seeds, a species of columnar cactus native to Brazil and naturally incident in the restinga. Cereus pernambucensis seeds were incubated under different temperatures, from 5 to 45 °C, with 5 °C intervals, and under alternating temperatures of 15-20 °C, 15-30 °C, 20-25 °C, 20-30 °C, 20-35 °C, 25-30 °C, 25-35 °C, and 30-35 °C, both under continuous white light and dark. The seeds were also incubated in a gradient of phytochrome photoequilibrium at 25 °C. The highest percentage germination in this species was between 25 and 30 °C. The minimum temperature was between 15 and 20 °C and the maximum between 35 and 40 °C. Alternating temperatures did not affect the percentage of seed germination, but it did alter the rate and synchronization indexes. Seeds incubated in the dark did not germinate under any of the conditions tested, indicating that this species when cultivated present light sensitive seeds controlled by phytochrome. The seeds can tolerate a lot of shade conditions, germinating under very low fluence response of phytochrome.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-01
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=S1676-06032010000200005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000200005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1676-06032010000200005
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 Instituto Virtual da Biodiversidade | BIOTA - FAPESP
publisher.none.fl_str_mv Instituto Virtual da Biodiversidade | BIOTA - FAPESP
dc.source.none.fl_str_mv Biota Neotropica v.10 n.2 2010
reponame:Biota Neotropica
instname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
instacron:BIOTA - FAPESP
instname_str Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
instacron_str BIOTA - FAPESP
institution BIOTA - FAPESP
reponame_str Biota Neotropica
collection Biota Neotropica
repository.name.fl_str_mv Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
repository.mail.fl_str_mv ||juliosa@unifap.br
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