Ecophysiology of Germination of Parkia platycephala Benth. Seeds

Detalhes bibliográficos
Autor(a) principal: Santos,Luana Martins dos
Data de Publicação: 2019
Outros Autores: Farias,Séfora Gil Gomes de, Silva,Romário Bezerra e, Dias,Bruna Anair Souto, Silva,Leovandes Soares da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100135
Resumo: ABSTRACT Water is considered the most important environmental resource for the germination process. This study aimed to evaluate the germination performance of Parkia platycephala seeds under different conditions of water and saline stress. Seed germination was tested with solutions of poly (ethylene glycol) 6000 and sodium chloride (NaCl) at seven osmotic potentials [0.0, -0.2, -0.4, -0.6, -0.8, -1.0, and -1.2MPa (megapascal)] and four replicates with 25 seeds in a completely randomized design, simulating the water and saline stress levels, respectively. The following seedling variables were evaluated: germination percentage, germination speed index, length, and dry mass. Results showed significant interaction between the agent and the osmotic potential for all evaluated variables. P. platycephala seeds presented higher tolerance to saline stress simulated by NaCl than to water stress, showing germination performance appropriate for glycophyte plants.
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spelling Ecophysiology of Germination of Parkia platycephala Benth. Seedsforest seedssalinityosmotic potentialABSTRACT Water is considered the most important environmental resource for the germination process. This study aimed to evaluate the germination performance of Parkia platycephala seeds under different conditions of water and saline stress. Seed germination was tested with solutions of poly (ethylene glycol) 6000 and sodium chloride (NaCl) at seven osmotic potentials [0.0, -0.2, -0.4, -0.6, -0.8, -1.0, and -1.2MPa (megapascal)] and four replicates with 25 seeds in a completely randomized design, simulating the water and saline stress levels, respectively. The following seedling variables were evaluated: germination percentage, germination speed index, length, and dry mass. Results showed significant interaction between the agent and the osmotic potential for all evaluated variables. P. platycephala seeds presented higher tolerance to saline stress simulated by NaCl than to water stress, showing germination performance appropriate for glycophyte plants.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100135Floresta e Ambiente v.26 n.1 2019reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.028215info:eu-repo/semantics/openAccessSantos,Luana Martins dosFarias,Séfora Gil Gomes deSilva,Romário Bezerra eDias,Bruna Anair SoutoSilva,Leovandes Soares daeng2019-03-11T00:00:00Zoai:scielo:S2179-80872019000100135Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2019-03-11T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Ecophysiology of Germination of Parkia platycephala Benth. Seeds
title Ecophysiology of Germination of Parkia platycephala Benth. Seeds
spellingShingle Ecophysiology of Germination of Parkia platycephala Benth. Seeds
Santos,Luana Martins dos
forest seeds
salinity
osmotic potential
title_short Ecophysiology of Germination of Parkia platycephala Benth. Seeds
title_full Ecophysiology of Germination of Parkia platycephala Benth. Seeds
title_fullStr Ecophysiology of Germination of Parkia platycephala Benth. Seeds
title_full_unstemmed Ecophysiology of Germination of Parkia platycephala Benth. Seeds
title_sort Ecophysiology of Germination of Parkia platycephala Benth. Seeds
author Santos,Luana Martins dos
author_facet Santos,Luana Martins dos
Farias,Séfora Gil Gomes de
Silva,Romário Bezerra e
Dias,Bruna Anair Souto
Silva,Leovandes Soares da
author_role author
author2 Farias,Séfora Gil Gomes de
Silva,Romário Bezerra e
Dias,Bruna Anair Souto
Silva,Leovandes Soares da
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos,Luana Martins dos
Farias,Séfora Gil Gomes de
Silva,Romário Bezerra e
Dias,Bruna Anair Souto
Silva,Leovandes Soares da
dc.subject.por.fl_str_mv forest seeds
salinity
osmotic potential
topic forest seeds
salinity
osmotic potential
description ABSTRACT Water is considered the most important environmental resource for the germination process. This study aimed to evaluate the germination performance of Parkia platycephala seeds under different conditions of water and saline stress. Seed germination was tested with solutions of poly (ethylene glycol) 6000 and sodium chloride (NaCl) at seven osmotic potentials [0.0, -0.2, -0.4, -0.6, -0.8, -1.0, and -1.2MPa (megapascal)] and four replicates with 25 seeds in a completely randomized design, simulating the water and saline stress levels, respectively. The following seedling variables were evaluated: germination percentage, germination speed index, length, and dry mass. Results showed significant interaction between the agent and the osmotic potential for all evaluated variables. P. platycephala seeds presented higher tolerance to saline stress simulated by NaCl than to water stress, showing germination performance appropriate for glycophyte plants.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
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=S2179-80872019000100135
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000100135
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.028215
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 de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.26 n.1 2019
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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