GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS

Detalhes bibliográficos
Autor(a) principal: Nunes, Luma Rayane de Lima
Data de Publicação: 2019
Outros Autores: Pinheiro, Paloma Rayane, Pinheiro, Charles Lobo, Lima, Kelly Andressa Peres, Dutra, Alek Sandro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/7912
Resumo: Salinity is prejudicial to plant development, causing different types of damage to species, or even between genotypes of the same species, with the effects being aggravated when combined with other types of stress, such as heat stress. The aim of this study was to evaluate the tolerance of cowpea genotypes (Vigna unguiculata L. Walp.) to salt stress at different temperatures. Seeds of the Pujante, Epace 10 and Marataoã genotypes were placed on paper rolls (Germitest®) moistened with different salt concentrations of 0.0 (control), 1.5, 3.0, 4.5 and 6.0 dS m-1, and placed in a germination chamber (BOD) at temperatures of 20, 25, 30 and 35°C. The experiment was conducted in a completely randomised design, in a 3 × 4 × 5 scheme of subdivided plots, with four replications per treatment. The variables under analysis were germination percentage, first germination count, shoot and root length, and total seedling dry weight. At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes, while for the Marataoã genotype, damage occurred at the temperature of 20°C. At 25°C, germination and vigour in the genotypes were higher, with the Pujante genotype proving to be more tolerant to salt stress, whereas Epace 10 and Marataoã were more tolerant to high temperatures. Germination in the cowpea genotypes was more sensitive to salt stress when subjected to heat stress caused by the low temperature of 20°C or high temperature of 35°C.
id UFERSA-1_dde7ddded7ffdb62511a34134c9b2adb
oai_identifier_str oai:ojs.periodicos.ufersa.edu.br:article/7912
network_acronym_str UFERSA-1
network_name_str Revista Caatinga
repository_id_str
spelling GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESSGERMINAÇÃO E VIGOR DE SEMENTES DE FEIJÃO-CAUPI EM RESPOSTA AOS ESTRESSES SALINO E TÉRMICOVigna unguiculata. Physiological potential. Salinity. Tolerance.Vigna unguiculata. Potencial fisiológico. Salinidade. Tolerância.Salinity is prejudicial to plant development, causing different types of damage to species, or even between genotypes of the same species, with the effects being aggravated when combined with other types of stress, such as heat stress. The aim of this study was to evaluate the tolerance of cowpea genotypes (Vigna unguiculata L. Walp.) to salt stress at different temperatures. Seeds of the Pujante, Epace 10 and Marataoã genotypes were placed on paper rolls (Germitest®) moistened with different salt concentrations of 0.0 (control), 1.5, 3.0, 4.5 and 6.0 dS m-1, and placed in a germination chamber (BOD) at temperatures of 20, 25, 30 and 35°C. The experiment was conducted in a completely randomised design, in a 3 × 4 × 5 scheme of subdivided plots, with four replications per treatment. The variables under analysis were germination percentage, first germination count, shoot and root length, and total seedling dry weight. At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes, while for the Marataoã genotype, damage occurred at the temperature of 20°C. At 25°C, germination and vigour in the genotypes were higher, with the Pujante genotype proving to be more tolerant to salt stress, whereas Epace 10 and Marataoã were more tolerant to high temperatures. Germination in the cowpea genotypes was more sensitive to salt stress when subjected to heat stress caused by the low temperature of 20°C or high temperature of 35°C.A salinidade é prejudicial ao desenvolvimento vegetal, causando diferentes danos às espécies, ou até mesmo entre genótipos da mesma espécie, com os efeitos sendo agravados quando combinado a outro estresse, como o térmico. Objetivou-se avaliar a tolerância ao estresse salino de genótipos de feijão-caupi (Vigna unguiculata L. Walp.) em diferentes temperaturas. As sementes dos genótipos Pujante, Epace 10 e Marataoã foram semeadas em rolos de papel (Germitest®), umedecidos com diferentes concentrações salinas de 0,0 (controle); 1,5; 3,0, 4,5 e 6,0 dS m-1, acondicionados em câmara de germinação (B.O.D.) nas temperaturas de 20, 25, 30 e 35 ºC. O experimento foi conduzido em delineamento inteiramente casualizado, em parcela subdividida no esquema de 3×4×5, com quatro repetições por tratamento. As variáveis analisadas foram porcentagem de germinação, primeira contagem de germinação, comprimento da parte aérea e da raiz e massa seca total da plântula. Nas condições de temperaturas de 30 e 35 °C, o aumento da concentração salina foi mais prejudicial à germinação dos genótipos Epace 10 e Pujante, enquanto para o Marataoã isto ocorreu na temperatura de 20 °C. Na temperatura de 25 °C a germinação e o vigor dos genótipos foram maiores, sendo que, o genótipo Pujante mostrou-se mais tolerante ao estresse salino, enquanto Epace 10 e Marataoã a temperaturas elevadas. A germinação dos genótipos de feijão-caupi foi mais sensível ao estresse salino quando submetidas ao estresse térmico, causado por temperatura baixa de 20 °C ou elevada de 35 °C.Universidade Federal Rural do Semi-Árido2019-03-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/791210.1590/1983-21252019v32n115rcREVISTA CAATINGA; Vol. 32 No. 1 (2019); 143-151Revista Caatinga; v. 32 n. 1 (2019); 143-1511983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/7912/9926Copyright (c) 2019 Revista Caatingainfo:eu-repo/semantics/openAccessNunes, Luma Rayane de LimaPinheiro, Paloma RayanePinheiro, Charles LoboLima, Kelly Andressa PeresDutra, Alek Sandro2023-07-20T16:56:35Zoai:ojs.periodicos.ufersa.edu.br:article/7912Revistahttps://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:2024-04-29T09:46:37.250668Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
GERMINAÇÃO E VIGOR DE SEMENTES DE FEIJÃO-CAUPI EM RESPOSTA AOS ESTRESSES SALINO E TÉRMICO
title GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
spellingShingle GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
Nunes, Luma Rayane de Lima
Vigna unguiculata. Physiological potential. Salinity. Tolerance.
Vigna unguiculata. Potencial fisiológico. Salinidade. Tolerância.
title_short GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
title_full GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
title_fullStr GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
title_full_unstemmed GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
title_sort GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
author Nunes, Luma Rayane de Lima
author_facet Nunes, Luma Rayane de Lima
Pinheiro, Paloma Rayane
Pinheiro, Charles Lobo
Lima, Kelly Andressa Peres
Dutra, Alek Sandro
author_role author
author2 Pinheiro, Paloma Rayane
Pinheiro, Charles Lobo
Lima, Kelly Andressa Peres
Dutra, Alek Sandro
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Nunes, Luma Rayane de Lima
Pinheiro, Paloma Rayane
Pinheiro, Charles Lobo
Lima, Kelly Andressa Peres
Dutra, Alek Sandro
dc.subject.por.fl_str_mv Vigna unguiculata. Physiological potential. Salinity. Tolerance.
Vigna unguiculata. Potencial fisiológico. Salinidade. Tolerância.
topic Vigna unguiculata. Physiological potential. Salinity. Tolerance.
Vigna unguiculata. Potencial fisiológico. Salinidade. Tolerância.
description Salinity is prejudicial to plant development, causing different types of damage to species, or even between genotypes of the same species, with the effects being aggravated when combined with other types of stress, such as heat stress. The aim of this study was to evaluate the tolerance of cowpea genotypes (Vigna unguiculata L. Walp.) to salt stress at different temperatures. Seeds of the Pujante, Epace 10 and Marataoã genotypes were placed on paper rolls (Germitest®) moistened with different salt concentrations of 0.0 (control), 1.5, 3.0, 4.5 and 6.0 dS m-1, and placed in a germination chamber (BOD) at temperatures of 20, 25, 30 and 35°C. The experiment was conducted in a completely randomised design, in a 3 × 4 × 5 scheme of subdivided plots, with four replications per treatment. The variables under analysis were germination percentage, first germination count, shoot and root length, and total seedling dry weight. At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes, while for the Marataoã genotype, damage occurred at the temperature of 20°C. At 25°C, germination and vigour in the genotypes were higher, with the Pujante genotype proving to be more tolerant to salt stress, whereas Epace 10 and Marataoã were more tolerant to high temperatures. Germination in the cowpea genotypes was more sensitive to salt stress when subjected to heat stress caused by the low temperature of 20°C or high temperature of 35°C.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-28
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/7912
10.1590/1983-21252019v32n115rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/7912
identifier_str_mv 10.1590/1983-21252019v32n115rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/7912/9926
dc.rights.driver.fl_str_mv Copyright (c) 2019 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 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. 32 No. 1 (2019); 143-151
Revista Caatinga; v. 32 n. 1 (2019); 143-151
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_ 1797674027634917376