Water restriction in different phenological stages and increased temperature affect cowpea production.
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130154 http://dx.doi.org/10.1590/1413-705420214502212 |
Resumo: | Water deficit and high temperatures are abiotic factors that most limit plant growth and development. However, its effects depend on crop development stage and on stress duration and intensity. Thus, the objective of was to evaluate the development of cowpea subjected to water restriction in different phenological stages and to increase in air temperature. The experiment was conducted with the cultivar ?Carijó?, in growth chambers, in a 4 x 3 x 2 factorial arrangement, corresponding to levels of water availability (25, 50, 75, and 100%,), phenological stages (vegetative, flowering and pod filling) and temperature regimes (T°1: 20-26-33 °C e T°2: 24.8-30.8-37.8 °C), respectively. Reduction of water availability in the vegetative and flowering stages caused decrease in grain production. The percentage of aborted flowers was higher in plants maintained under an increased temperature of +4.8 °C, with consequent reduction in grain production. Higher water availability values favored shoot and root dry mass production. Increase of 4.8 °C did not affect shoot and root dry mass but reduced water use efficiency by about 83%. The highest enzymatic activities of CAT, GPX and SOD were found in plants subjected to the temperature of +4.8 °C. Only APX showed lower enzymatic activity with increasing temperature. The cv. ?Carijó? is more sensitive to the 4.8 °C increase in air temperature than to water deficits. |
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Water restriction in different phenological stages and increased temperature affect cowpea production.Restrição hídricaEstágios fenológicosAumento da temperaturaFeijãoVigna UnguiculataFenologiaTemperaturaAbiotic stressOxidative stressPhenologyWater deficit and high temperatures are abiotic factors that most limit plant growth and development. However, its effects depend on crop development stage and on stress duration and intensity. Thus, the objective of was to evaluate the development of cowpea subjected to water restriction in different phenological stages and to increase in air temperature. The experiment was conducted with the cultivar ?Carijó?, in growth chambers, in a 4 x 3 x 2 factorial arrangement, corresponding to levels of water availability (25, 50, 75, and 100%,), phenological stages (vegetative, flowering and pod filling) and temperature regimes (T°1: 20-26-33 °C e T°2: 24.8-30.8-37.8 °C), respectively. Reduction of water availability in the vegetative and flowering stages caused decrease in grain production. The percentage of aborted flowers was higher in plants maintained under an increased temperature of +4.8 °C, with consequent reduction in grain production. Higher water availability values favored shoot and root dry mass production. Increase of 4.8 °C did not affect shoot and root dry mass but reduced water use efficiency by about 83%. The highest enzymatic activities of CAT, GPX and SOD were found in plants subjected to the temperature of +4.8 °C. Only APX showed lower enzymatic activity with increasing temperature. The cv. ?Carijó? is more sensitive to the 4.8 °C increase in air temperature than to water deficits.Juliane Rafaele Alves Barros; Miguel Julio Machado Guimarães; WELSON LIMA SIMOES, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; FRANCISLENE ANGELOTTI, CPATSA.BARROS, J. A. R.GUIMARÃES, M. J. M.SIMOES, W. L.MELO, N. F. deANGELOTTI, F.2021-02-20T20:02:34Z2021-02-20T20:02:34Z2021-02-192021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCiência e Agrotecnologia, v. 45, e022120, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130154http://dx.doi.org/10.1590/1413-705420214502212enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-02-20T20:02:44Zoai:www.alice.cnptia.embrapa.br:doc/1130154Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-02-20T20:02:44falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-02-20T20:02:44Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
title |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
spellingShingle |
Water restriction in different phenological stages and increased temperature affect cowpea production. BARROS, J. A. R. Restrição hídrica Estágios fenológicos Aumento da temperatura Feijão Vigna Unguiculata Fenologia Temperatura Abiotic stress Oxidative stress Phenology |
title_short |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
title_full |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
title_fullStr |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
title_full_unstemmed |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
title_sort |
Water restriction in different phenological stages and increased temperature affect cowpea production. |
author |
BARROS, J. A. R. |
author_facet |
BARROS, J. A. R. GUIMARÃES, M. J. M. SIMOES, W. L. MELO, N. F. de ANGELOTTI, F. |
author_role |
author |
author2 |
GUIMARÃES, M. J. M. SIMOES, W. L. MELO, N. F. de ANGELOTTI, F. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Juliane Rafaele Alves Barros; Miguel Julio Machado Guimarães; WELSON LIMA SIMOES, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; FRANCISLENE ANGELOTTI, CPATSA. |
dc.contributor.author.fl_str_mv |
BARROS, J. A. R. GUIMARÃES, M. J. M. SIMOES, W. L. MELO, N. F. de ANGELOTTI, F. |
dc.subject.por.fl_str_mv |
Restrição hídrica Estágios fenológicos Aumento da temperatura Feijão Vigna Unguiculata Fenologia Temperatura Abiotic stress Oxidative stress Phenology |
topic |
Restrição hídrica Estágios fenológicos Aumento da temperatura Feijão Vigna Unguiculata Fenologia Temperatura Abiotic stress Oxidative stress Phenology |
description |
Water deficit and high temperatures are abiotic factors that most limit plant growth and development. However, its effects depend on crop development stage and on stress duration and intensity. Thus, the objective of was to evaluate the development of cowpea subjected to water restriction in different phenological stages and to increase in air temperature. The experiment was conducted with the cultivar ?Carijó?, in growth chambers, in a 4 x 3 x 2 factorial arrangement, corresponding to levels of water availability (25, 50, 75, and 100%,), phenological stages (vegetative, flowering and pod filling) and temperature regimes (T°1: 20-26-33 °C e T°2: 24.8-30.8-37.8 °C), respectively. Reduction of water availability in the vegetative and flowering stages caused decrease in grain production. The percentage of aborted flowers was higher in plants maintained under an increased temperature of +4.8 °C, with consequent reduction in grain production. Higher water availability values favored shoot and root dry mass production. Increase of 4.8 °C did not affect shoot and root dry mass but reduced water use efficiency by about 83%. The highest enzymatic activities of CAT, GPX and SOD were found in plants subjected to the temperature of +4.8 °C. Only APX showed lower enzymatic activity with increasing temperature. The cv. ?Carijó? is more sensitive to the 4.8 °C increase in air temperature than to water deficits. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-02-20T20:02:34Z 2021-02-20T20:02:34Z 2021-02-19 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Ciência e Agrotecnologia, v. 45, e022120, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130154 http://dx.doi.org/10.1590/1413-705420214502212 |
identifier_str_mv |
Ciência e Agrotecnologia, v. 45, e022120, 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130154 http://dx.doi.org/10.1590/1413-705420214502212 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503502849900544 |