Sensitivity of common bean accesses to water stress
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Gaúcha (Online) |
Texto Completo: | http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/68 |
Resumo: | This study aimed to characterize agronomically landraces and commercial genotypes for tolerance to drought stress and investigate the effect of water stress on the agronomic traits of interest. In Rio Grande do Sul, beans are grown from August to April, when water stress is usually observed. First, 25 bean genotypes (19 landraces and 6 commercial varieties) were characterized in the field. Then, the genotypes that excelled in the field and two controls (BAT477 and IPR Jurití) were submitted to two water conditions: i) irrigation according to the water requirement of the crop throughout the cycle and; ii) irrigated according to the water requirement of the crop until the appearance of the first floral bud (stage R6), when irrigation was suspended for a period of 10 days. Water stress had a negative effect on all traits, and caused: i) increased temperature; ii) reduced photosynthetic capacity; iii) reduced number of legumes per plant and; iv) reduced number of grains per legume. Genotypes BAG40, BAG100 and BAG102 may be promising for tolerance to water stress, since they were insensitive in most traits assessed, especially those related to productivity. |
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Sensitivity of common bean accesses to water stressSensibilidade de genótipos de feijão ao estresse hídricoPhaseolus vulgaris L.Water deficitGenebankPhaseolus vulgaris L.Déficit hídricoBanco de germoplasmaThis study aimed to characterize agronomically landraces and commercial genotypes for tolerance to drought stress and investigate the effect of water stress on the agronomic traits of interest. In Rio Grande do Sul, beans are grown from August to April, when water stress is usually observed. First, 25 bean genotypes (19 landraces and 6 commercial varieties) were characterized in the field. Then, the genotypes that excelled in the field and two controls (BAT477 and IPR Jurití) were submitted to two water conditions: i) irrigation according to the water requirement of the crop throughout the cycle and; ii) irrigated according to the water requirement of the crop until the appearance of the first floral bud (stage R6), when irrigation was suspended for a period of 10 days. Water stress had a negative effect on all traits, and caused: i) increased temperature; ii) reduced photosynthetic capacity; iii) reduced number of legumes per plant and; iv) reduced number of grains per legume. Genotypes BAG40, BAG100 and BAG102 may be promising for tolerance to water stress, since they were insensitive in most traits assessed, especially those related to productivity.Este trabalho teve como objetivo caracterizar agronomicamente genótipos de feijão crioulo e comercial para tolerância ao estresse hídrico, bem como verificar o efeito do estresse hídrico nos caracteres agronômicos de interesse. No Rio Grande do Sul o feijão é cultivado entre agosto a abril, período em que, frequentemente ocorre estresse hídrico. Primeiramente, foram caracterizados a campo 25 genótipos de feijão (19 crioulos e 6 variedades comerciais). Posteriormente, os genótipos que se destacaram na avaliação a campo e mais duas testemunhas (BAT477 e IPR Jurití) foram submetidos a duas condições hídricas: i) irrigados conforme a necessidade hídrica da cultura durante todo o ciclo e; ii) irrigados conforme a necessidade hídrica da cultura até o aparecimento do primeiro botão floral (estágio R6), quando a irrigação foi suspensa por um período de 10 dias. O estresse hídrico teve influência negativa sob todos os caracteres, resultando em: i) aumento da temperatura foliar; ii) redução na capacidade fotossintética; iii) redução no número de legumes por planta e; iv) redução no número de grãos por legume. Os genótipos BAG40, BAG100 e BAG102 podem ser promissores para a tolerância ao estresse hídrico, uma vez que foram insensíveis na maior parte dos caracteres avaliados, principalmente aqueles relacionados à produtividade.Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2019-11-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/6810.36812/pag.201925336-50Pesquisa Agropecuária Gaúcha; Vol 25 No 3 (2019): PESQ. AGROP. GAÚCHA, 100 Anos ; 36-50Pesquisa Agropecuária Gaúcha; v. 25 n. 3 (2019): PESQ. AGROP. GAÚCHA, 100 Anos ; 36-502595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/68/50Bertoldo, Juliano Garcia Pelisser, Amanda Silva , Raquel Paz Favreto, RodrigoRadin, Bernadete info:eu-repo/semantics/openAccess2024-04-22T12:54:35Zoai:ojs.revistapag.agricultura.rs.gov.br:article/68Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:54:35Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse |
dc.title.none.fl_str_mv |
Sensitivity of common bean accesses to water stress Sensibilidade de genótipos de feijão ao estresse hídrico |
title |
Sensitivity of common bean accesses to water stress |
spellingShingle |
Sensitivity of common bean accesses to water stress Bertoldo, Juliano Garcia Phaseolus vulgaris L. Water deficit Genebank Phaseolus vulgaris L. Déficit hídrico Banco de germoplasma |
title_short |
Sensitivity of common bean accesses to water stress |
title_full |
Sensitivity of common bean accesses to water stress |
title_fullStr |
Sensitivity of common bean accesses to water stress |
title_full_unstemmed |
Sensitivity of common bean accesses to water stress |
title_sort |
Sensitivity of common bean accesses to water stress |
author |
Bertoldo, Juliano Garcia |
author_facet |
Bertoldo, Juliano Garcia Pelisser, Amanda Silva , Raquel Paz Favreto, Rodrigo Radin, Bernadete |
author_role |
author |
author2 |
Pelisser, Amanda Silva , Raquel Paz Favreto, Rodrigo Radin, Bernadete |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bertoldo, Juliano Garcia Pelisser, Amanda Silva , Raquel Paz Favreto, Rodrigo Radin, Bernadete |
dc.subject.por.fl_str_mv |
Phaseolus vulgaris L. Water deficit Genebank Phaseolus vulgaris L. Déficit hídrico Banco de germoplasma |
topic |
Phaseolus vulgaris L. Water deficit Genebank Phaseolus vulgaris L. Déficit hídrico Banco de germoplasma |
description |
This study aimed to characterize agronomically landraces and commercial genotypes for tolerance to drought stress and investigate the effect of water stress on the agronomic traits of interest. In Rio Grande do Sul, beans are grown from August to April, when water stress is usually observed. First, 25 bean genotypes (19 landraces and 6 commercial varieties) were characterized in the field. Then, the genotypes that excelled in the field and two controls (BAT477 and IPR Jurití) were submitted to two water conditions: i) irrigation according to the water requirement of the crop throughout the cycle and; ii) irrigated according to the water requirement of the crop until the appearance of the first floral bud (stage R6), when irrigation was suspended for a period of 10 days. Water stress had a negative effect on all traits, and caused: i) increased temperature; ii) reduced photosynthetic capacity; iii) reduced number of legumes per plant and; iv) reduced number of grains per legume. Genotypes BAG40, BAG100 and BAG102 may be promising for tolerance to water stress, since they were insensitive in most traits assessed, especially those related to productivity. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-11-21 |
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 |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/68 10.36812/pag.201925336-50 |
url |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/68 |
identifier_str_mv |
10.36812/pag.201925336-50 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/68/50 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Gaúcha; Vol 25 No 3 (2019): PESQ. AGROP. GAÚCHA, 100 Anos ; 36-50 Pesquisa Agropecuária Gaúcha; v. 25 n. 3 (2019): PESQ. AGROP. GAÚCHA, 100 Anos ; 36-50 2595-7686 0104-9070 reponame:Pesquisa Agropecuária Gaúcha (Online) instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul instacron:SEAPDR |
instname_str |
Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
instacron_str |
SEAPDR |
institution |
SEAPDR |
reponame_str |
Pesquisa Agropecuária Gaúcha (Online) |
collection |
Pesquisa Agropecuária Gaúcha (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
repository.mail.fl_str_mv |
pag@agricultura.rs.gov.br|| |
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1797068771547938816 |