Comparison of water and osmotic potentials on Vigna unguiculata stress response
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciência do Solo (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100417 |
Resumo: | ABSTRACT Drought and soil salinity are the main abiotic stresses in semiarid regions of the world. This study aims to evaluate the effect of water tensions generated by the reduction of soil moisture and salt on the leaf water potential of cowpea (Vigna unguiculata L. Walp). The experiments were conducted in a randomized complete block design, with a 6 × 2 factorial arrangement consisted of six soil water tensions (0.025, 0.265, 0.485, 0.705, 0.925, and 1.145 MPa) and two tension sources (water deficit and salt), with four replications. Two experiments were performed with the same environmental conditions to evaluate the influence of the tensions on vegetative and reproductive stages. Water and osmotic potentials, relative water content, leaf succulence, and shoot biomass yield were evaluated. Soil water tension was not the main factor of changes on water and osmotic potentials of V. unguiculata plants; the water deficit treatments at soil water tensions of up to 1.145 MPa did not reduce the water and osmotic potentials either at the vegetative or flowering phenological stages; high correlations were found between shoot biomass yield and the leaf water potential at seven days after stress. The osmotic potential was the main indicator of stress in plants at the vegetative and flowering stages subjected to water deficit by the presence of salts in the soil solution. |
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Comparison of water and osmotic potentials on Vigna unguiculata stress responsewater deficitwater relationshipsdrought tolerancecowpeaABSTRACT Drought and soil salinity are the main abiotic stresses in semiarid regions of the world. This study aims to evaluate the effect of water tensions generated by the reduction of soil moisture and salt on the leaf water potential of cowpea (Vigna unguiculata L. Walp). The experiments were conducted in a randomized complete block design, with a 6 × 2 factorial arrangement consisted of six soil water tensions (0.025, 0.265, 0.485, 0.705, 0.925, and 1.145 MPa) and two tension sources (water deficit and salt), with four replications. Two experiments were performed with the same environmental conditions to evaluate the influence of the tensions on vegetative and reproductive stages. Water and osmotic potentials, relative water content, leaf succulence, and shoot biomass yield were evaluated. Soil water tension was not the main factor of changes on water and osmotic potentials of V. unguiculata plants; the water deficit treatments at soil water tensions of up to 1.145 MPa did not reduce the water and osmotic potentials either at the vegetative or flowering phenological stages; high correlations were found between shoot biomass yield and the leaf water potential at seven days after stress. The osmotic potential was the main indicator of stress in plants at the vegetative and flowering stages subjected to water deficit by the presence of salts in the soil solution.Sociedade Brasileira de Ciência do Solo2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100417Revista Brasileira de Ciência do Solo v.44 2020reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.36783/18069657rbcs20200070info:eu-repo/semantics/openAccessMelo,Hidelblandi Farias deSouza,Edivan Rodrigues deDourado,Pablo Rugero MagalhãesLins,Cíntia Maria TeixeiraSantos,Hugo Rafael BentzenMonteiro,Danilo RodriguesPaulino,Martha Katharinne Silva SouzaAlmeida,Brivaldo Gomes deSantos,Monaliza Alves doseng2020-11-13T00:00:00Zoai:scielo:S0100-06832020000100417Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2020-11-13T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false |
dc.title.none.fl_str_mv |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
title |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
spellingShingle |
Comparison of water and osmotic potentials on Vigna unguiculata stress response Melo,Hidelblandi Farias de water deficit water relationships drought tolerance cowpea |
title_short |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
title_full |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
title_fullStr |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
title_full_unstemmed |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
title_sort |
Comparison of water and osmotic potentials on Vigna unguiculata stress response |
author |
Melo,Hidelblandi Farias de |
author_facet |
Melo,Hidelblandi Farias de Souza,Edivan Rodrigues de Dourado,Pablo Rugero Magalhães Lins,Cíntia Maria Teixeira Santos,Hugo Rafael Bentzen Monteiro,Danilo Rodrigues Paulino,Martha Katharinne Silva Souza Almeida,Brivaldo Gomes de Santos,Monaliza Alves dos |
author_role |
author |
author2 |
Souza,Edivan Rodrigues de Dourado,Pablo Rugero Magalhães Lins,Cíntia Maria Teixeira Santos,Hugo Rafael Bentzen Monteiro,Danilo Rodrigues Paulino,Martha Katharinne Silva Souza Almeida,Brivaldo Gomes de Santos,Monaliza Alves dos |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Melo,Hidelblandi Farias de Souza,Edivan Rodrigues de Dourado,Pablo Rugero Magalhães Lins,Cíntia Maria Teixeira Santos,Hugo Rafael Bentzen Monteiro,Danilo Rodrigues Paulino,Martha Katharinne Silva Souza Almeida,Brivaldo Gomes de Santos,Monaliza Alves dos |
dc.subject.por.fl_str_mv |
water deficit water relationships drought tolerance cowpea |
topic |
water deficit water relationships drought tolerance cowpea |
description |
ABSTRACT Drought and soil salinity are the main abiotic stresses in semiarid regions of the world. This study aims to evaluate the effect of water tensions generated by the reduction of soil moisture and salt on the leaf water potential of cowpea (Vigna unguiculata L. Walp). The experiments were conducted in a randomized complete block design, with a 6 × 2 factorial arrangement consisted of six soil water tensions (0.025, 0.265, 0.485, 0.705, 0.925, and 1.145 MPa) and two tension sources (water deficit and salt), with four replications. Two experiments were performed with the same environmental conditions to evaluate the influence of the tensions on vegetative and reproductive stages. Water and osmotic potentials, relative water content, leaf succulence, and shoot biomass yield were evaluated. Soil water tension was not the main factor of changes on water and osmotic potentials of V. unguiculata plants; the water deficit treatments at soil water tensions of up to 1.145 MPa did not reduce the water and osmotic potentials either at the vegetative or flowering phenological stages; high correlations were found between shoot biomass yield and the leaf water potential at seven days after stress. The osmotic potential was the main indicator of stress in plants at the vegetative and flowering stages subjected to water deficit by the presence of salts in the soil solution. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S0100-06832020000100417 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100417 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.36783/18069657rbcs20200070 |
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 |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo v.44 2020 reponame:Revista Brasileira de Ciência do Solo (Online) instname:Sociedade Brasileira de Ciência do Solo (SBCS) instacron:SBCS |
instname_str |
Sociedade Brasileira de Ciência do Solo (SBCS) |
instacron_str |
SBCS |
institution |
SBCS |
reponame_str |
Revista Brasileira de Ciência do Solo (Online) |
collection |
Revista Brasileira de Ciência do Solo (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS) |
repository.mail.fl_str_mv |
||sbcs@ufv.br |
_version_ |
1752126522323369984 |