Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses

Detalhes bibliográficos
Autor(a) principal: Sousa,Eduardo C.
Data de Publicação: 2018
Outros Autores: Silva,Daniel V., Sousa,Danielle M. M., Torres,Salvador B., Oliveira,Renata R. T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000600383
Resumo: ABSTRACT Seed germination of species that develop in arid and semi-arid soils can be altered by water deficit and abundance of salts in the soil. Knowledge on tolerance limits is fundamental to understand the adaptive capacity of species under such conditions. The objective of this study was to evaluate the physiological changes (germination and vigor) of Mimosa caesalpiniifolia seeds from different regions and submitted to water and saline stresses. To simulate water stress, the osmotic agent polyethylene glycol (PEG 6000) was adjusted to the potentials of 0, -0.2, -0.4, -0.6 and -0.8 MPa, whereas for the saline stress, NaCl solutions were adjusted to the potentials of 0, -0.1, -0.3, -0.5, -0.7; -0.9 and -1.1 MPa. The experimental design was completely randomized, in a 3 x 5 factorial scheme for water stress and 3 x 7 factorial scheme for saline stress, with four replicates of 25 seeds. The variables analysed were: germination, germination speed index and seedling shoot length, root length, shoot dry matter and root dry matter. M. caesalpiniifolia seeds, coming from different geographic regions, showed similar physiological responses to water stress; with respect to salt stress, their tolerance varies according to the region of harvest, and those from Vazante, MG, Brazil were more tolerant during germination and initial growth of seedlings.
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spelling Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stressesFabaceae‘Sabiá’PEGNaClabiotic stressABSTRACT Seed germination of species that develop in arid and semi-arid soils can be altered by water deficit and abundance of salts in the soil. Knowledge on tolerance limits is fundamental to understand the adaptive capacity of species under such conditions. The objective of this study was to evaluate the physiological changes (germination and vigor) of Mimosa caesalpiniifolia seeds from different regions and submitted to water and saline stresses. To simulate water stress, the osmotic agent polyethylene glycol (PEG 6000) was adjusted to the potentials of 0, -0.2, -0.4, -0.6 and -0.8 MPa, whereas for the saline stress, NaCl solutions were adjusted to the potentials of 0, -0.1, -0.3, -0.5, -0.7; -0.9 and -1.1 MPa. The experimental design was completely randomized, in a 3 x 5 factorial scheme for water stress and 3 x 7 factorial scheme for saline stress, with four replicates of 25 seeds. The variables analysed were: germination, germination speed index and seedling shoot length, root length, shoot dry matter and root dry matter. M. caesalpiniifolia seeds, coming from different geographic regions, showed similar physiological responses to water stress; with respect to salt stress, their tolerance varies according to the region of harvest, and those from Vazante, MG, Brazil were more tolerant during germination and initial growth of seedlings.Departamento de Engenharia Agrícola - UFCG2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000600383Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.6 2018reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v22n6p383-389info:eu-repo/semantics/openAccessSousa,Eduardo C.Silva,Daniel V.Sousa,Danielle M. M.Torres,Salvador B.Oliveira,Renata R. T.eng2018-06-14T00:00:00Zoai:scielo:S1415-43662018000600383Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2018-06-14T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
title Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
spellingShingle Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
Sousa,Eduardo C.
Fabaceae
‘Sabiá’
PEG
NaCl
abiotic stress
title_short Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
title_full Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
title_fullStr Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
title_full_unstemmed Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
title_sort Physiological changes in Mimosa caesalpiniifolia Benth. seeds from different sources and submitted to abiotic stresses
author Sousa,Eduardo C.
author_facet Sousa,Eduardo C.
Silva,Daniel V.
Sousa,Danielle M. M.
Torres,Salvador B.
Oliveira,Renata R. T.
author_role author
author2 Silva,Daniel V.
Sousa,Danielle M. M.
Torres,Salvador B.
Oliveira,Renata R. T.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Sousa,Eduardo C.
Silva,Daniel V.
Sousa,Danielle M. M.
Torres,Salvador B.
Oliveira,Renata R. T.
dc.subject.por.fl_str_mv Fabaceae
‘Sabiá’
PEG
NaCl
abiotic stress
topic Fabaceae
‘Sabiá’
PEG
NaCl
abiotic stress
description ABSTRACT Seed germination of species that develop in arid and semi-arid soils can be altered by water deficit and abundance of salts in the soil. Knowledge on tolerance limits is fundamental to understand the adaptive capacity of species under such conditions. The objective of this study was to evaluate the physiological changes (germination and vigor) of Mimosa caesalpiniifolia seeds from different regions and submitted to water and saline stresses. To simulate water stress, the osmotic agent polyethylene glycol (PEG 6000) was adjusted to the potentials of 0, -0.2, -0.4, -0.6 and -0.8 MPa, whereas for the saline stress, NaCl solutions were adjusted to the potentials of 0, -0.1, -0.3, -0.5, -0.7; -0.9 and -1.1 MPa. The experimental design was completely randomized, in a 3 x 5 factorial scheme for water stress and 3 x 7 factorial scheme for saline stress, with four replicates of 25 seeds. The variables analysed were: germination, germination speed index and seedling shoot length, root length, shoot dry matter and root dry matter. M. caesalpiniifolia seeds, coming from different geographic regions, showed similar physiological responses to water stress; with respect to salt stress, their tolerance varies according to the region of harvest, and those from Vazante, MG, Brazil were more tolerant during germination and initial growth of seedlings.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-01
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=S1415-43662018000600383
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v22n6p383-389
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.6 2018
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
instname:Universidade Federal de Campina Grande (UFCG)
instacron:UFCG
instname_str Universidade Federal de Campina Grande (UFCG)
instacron_str UFCG
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reponame_str Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
collection Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
repository.name.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)
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