GERMINATION AND VIGOUR IN SEEDS OF THE COWPEA IN RESPONSE TO SALT AND HEAT STRESS
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
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. |
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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 |