WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS

Detalhes bibliográficos
Autor(a) principal: Ferreira, Aureane Cristina Teixeira
Data de Publicação: 2017
Outros Autores: Felito, Ricardo Adriano, Rocha, Adriano Maltezo da, Carvalho, Marco Antonio Camillo de, Yamashita, Oscar Mitsuo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/6344
Resumo: The objective of this work was to evaluate seeds of cowpea, cultivar BRS Tumucumaque, subjected to different water stresses induced by polyethylene glycol (PEG-6000) and mannitol and different salt stresses induced by NaCl and CaCl2 solutions. The water and salt stresses was evaluated in laboratory using completely randomized experimental designs in 2x6 factorial arrangements, with six osmotic potentials (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) and two stress inducers for each experiment, with four replications of 50 seeds. The percentage of germination, germination speed index, root and shoot lengths and seedling fresh weight were evaluated at the tenth day (end of the evaluation period). The simulated water stress showed effects on the cowpea seed germination and seedling initial growth by decreasing the rates of the variables evaluated, which had greater effect in treatments with PEG-6000. The salt stress induced by NaCl showed greater effect on the variables evaluated than that induced by CaCl2, due to the sodium toxicity in the salt chemical composition.
id UFERSA-1_2e18dbd930d4c59535a38ee31f82e266
oai_identifier_str oai:ojs.periodicos.ufersa.edu.br:article/6344
network_acronym_str UFERSA-1
network_name_str Revista Caatinga
repository_id_str
spelling WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDSESTRESSE HÍDRICO E SALINO NA GERMINAÇÃO DE SEMENTES DE FEIJÃO-CAUPI (Vigna unguiculata cv. BRS Tumucumaque)Índice de velocidade de germinação. Restrição hídrica. Potencial osmótico.Germination speed index. Water deficit. Osmotic potential.The objective of this work was to evaluate seeds of cowpea, cultivar BRS Tumucumaque, subjected to different water stresses induced by polyethylene glycol (PEG-6000) and mannitol and different salt stresses induced by NaCl and CaCl2 solutions. The water and salt stresses was evaluated in laboratory using completely randomized experimental designs in 2x6 factorial arrangements, with six osmotic potentials (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) and two stress inducers for each experiment, with four replications of 50 seeds. The percentage of germination, germination speed index, root and shoot lengths and seedling fresh weight were evaluated at the tenth day (end of the evaluation period). The simulated water stress showed effects on the cowpea seed germination and seedling initial growth by decreasing the rates of the variables evaluated, which had greater effect in treatments with PEG-6000. The salt stress induced by NaCl showed greater effect on the variables evaluated than that induced by CaCl2, due to the sodium toxicity in the salt chemical composition.O objetivo deste trabalho foi avaliar o comportamento de sementes das sementes da cultivar de feijão-caupi BRS Tumucumaque sob efeito de potenciais hídricos provocados por polietileno glicol (PEG 6000) e manitol e de potenciais salinos induzidos por soluções de NaCl e CaCl2. Para verificação dos estresses hídrico e salino, avaliou-se em laboratório, a combinação de seis potenciais osmóticos (0,0; -0,2; -0,4; -0,6; -0,8 e -1,0 MPa) com os dois agentes de estresses para cada experimento, em delineamento inteiramente casualizado, configurando esquema fatorial 2x6, com quatro repetições de 50 sementes. Foram avaliadas as variáveis: porcentagem de germinação, índice de velocidade de germinação (IVG), comprimento de raiz e parte aérea e massa fresca de plântulas no décimo dia, ao final do período de avaliação. A simulação de deficiência hídrica, utilizando-se manitol e PEG 6000 permitiu a constatação dos efeitos do estresse na germinação e no crescimento inicial das plântulas da cultivar BRS Tumucumaque, pelo decréscimo das variáveis observadas, sendo que os tratamentos à base de PEG 6000 foram os mais drásticos. A indução do estresse salino pelos sais NaCl e CaCl2 foi verificada nas variáveis avaliadas, onde os efeitos do NaCl foram mais acentuados, devido a toxidade do sódio na composição química do sal.Universidade Federal Rural do Semi-Árido2017-06-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/634410.1590/1983-21252017v30n422rcREVISTA CAATINGA; Vol. 30 No. 4 (2017); 1009-1016Revista Caatinga; v. 30 n. 4 (2017); 1009-10161983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/6344/pdfCopyright (c) 2017 Revista Caatingainfo:eu-repo/semantics/openAccessFerreira, Aureane Cristina TeixeiraFelito, Ricardo AdrianoRocha, Adriano Maltezo daCarvalho, Marco Antonio Camillo deYamashita, Oscar Mitsuo2023-07-20T11:35:50Zoai:ojs.periodicos.ufersa.edu.br:article/6344Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:27.037516Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
ESTRESSE HÍDRICO E SALINO NA GERMINAÇÃO DE SEMENTES DE FEIJÃO-CAUPI (Vigna unguiculata cv. BRS Tumucumaque)
title WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
spellingShingle WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
Ferreira, Aureane Cristina Teixeira
Índice de velocidade de germinação. Restrição hídrica. Potencial osmótico.
Germination speed index. Water deficit. Osmotic potential.
title_short WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
title_full WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
title_fullStr WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
title_full_unstemmed WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
title_sort WATER AND SALT STRESSES ON GERMINATION OF COWPEA (Vigna unguiculata cv. BRS Tumucumaque) SEEDS
author Ferreira, Aureane Cristina Teixeira
author_facet Ferreira, Aureane Cristina Teixeira
Felito, Ricardo Adriano
Rocha, Adriano Maltezo da
Carvalho, Marco Antonio Camillo de
Yamashita, Oscar Mitsuo
author_role author
author2 Felito, Ricardo Adriano
Rocha, Adriano Maltezo da
Carvalho, Marco Antonio Camillo de
Yamashita, Oscar Mitsuo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Aureane Cristina Teixeira
Felito, Ricardo Adriano
Rocha, Adriano Maltezo da
Carvalho, Marco Antonio Camillo de
Yamashita, Oscar Mitsuo
dc.subject.por.fl_str_mv Índice de velocidade de germinação. Restrição hídrica. Potencial osmótico.
Germination speed index. Water deficit. Osmotic potential.
topic Índice de velocidade de germinação. Restrição hídrica. Potencial osmótico.
Germination speed index. Water deficit. Osmotic potential.
description The objective of this work was to evaluate seeds of cowpea, cultivar BRS Tumucumaque, subjected to different water stresses induced by polyethylene glycol (PEG-6000) and mannitol and different salt stresses induced by NaCl and CaCl2 solutions. The water and salt stresses was evaluated in laboratory using completely randomized experimental designs in 2x6 factorial arrangements, with six osmotic potentials (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) and two stress inducers for each experiment, with four replications of 50 seeds. The percentage of germination, germination speed index, root and shoot lengths and seedling fresh weight were evaluated at the tenth day (end of the evaluation period). The simulated water stress showed effects on the cowpea seed germination and seedling initial growth by decreasing the rates of the variables evaluated, which had greater effect in treatments with PEG-6000. The salt stress induced by NaCl showed greater effect on the variables evaluated than that induced by CaCl2, due to the sodium toxicity in the salt chemical composition.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/6344
10.1590/1983-21252017v30n422rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/6344
identifier_str_mv 10.1590/1983-21252017v30n422rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/6344/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2017 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 30 No. 4 (2017); 1009-1016
Revista Caatinga; v. 30 n. 4 (2017); 1009-1016
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
_version_ 1797674026513989632

Registros relacionados