Physiological behaviour of two peanut cultivars submitted to suppression watering

Detalhes bibliográficos
Autor(a) principal: J. Mansur C. Nogueira, Rejane
Data de Publicação: 1998
Outros Autores: Cavalcanti dos Santos, Roseane, Bezerra Neto, Egídio, Felipe dos Santos, Venézio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5021
Resumo: Two peanuts (Arachis hypogaea L.) cultivars were evaluated for physiological behavior and resistance to drought in greenhouse conditions submitted to a 10 day period of watering suppression. The drought resistant (Nigeria 55437 - CNPA 76 AM) and sensible (IAC Tupã) cultivars were both potted and irrigated during 20 days after sowing. From this date on, only control plant received water while the other ones were submitted to watering suppression. The following parameters were evaluated: leaf temperature (Tf), diffusive resistance (Rs), transpiration (E), leaf water potential (Ψw) and proline concentration (P) on the leaflets. It was utilized adult leaflets from the high third of the main stem and completely extended. It were observed differences between cultivars and treatments studied. Nigeria 55437 showed high Rs and low Ψw and E when submitted to watering suppression. It showed high proline concentration even when was cultivated in normal conditions. It were observed negative correlations between Ψw x Rs and Ψw x P and positive between Tf x Rs, Tf x P and Rs x P during the suppression watering period.
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spelling Physiological behaviour of two peanut cultivars submitted to suppression wateringComportamento fisiológico de duas cultivares de amendoim submetidas a diferentes regimes hídricosArachis hypogaea; transpiration; diffusive resistance; leaf water potential; prolineArachis hypogaea; transpiração; resistência difusiva; potencial hídrico foliar; prolinaTwo peanuts (Arachis hypogaea L.) cultivars were evaluated for physiological behavior and resistance to drought in greenhouse conditions submitted to a 10 day period of watering suppression. The drought resistant (Nigeria 55437 - CNPA 76 AM) and sensible (IAC Tupã) cultivars were both potted and irrigated during 20 days after sowing. From this date on, only control plant received water while the other ones were submitted to watering suppression. The following parameters were evaluated: leaf temperature (Tf), diffusive resistance (Rs), transpiration (E), leaf water potential (Ψw) and proline concentration (P) on the leaflets. It was utilized adult leaflets from the high third of the main stem and completely extended. It were observed differences between cultivars and treatments studied. Nigeria 55437 showed high Rs and low Ψw and E when submitted to watering suppression. It showed high proline concentration even when was cultivated in normal conditions. It were observed negative correlations between Ψw x Rs and Ψw x P and positive between Tf x Rs, Tf x P and Rs x P during the suppression watering period.Duas cultivares de amendoim (Arachis hypogaea L.) foram submetidas a 10 dias de suspensão de rega em casa de vegetação, objetivando compará-las quanto ao caráter resistência à seca. As cultivares Nigéria 55437 (CNPA 76 AM), resistente, e IAC Tupã, sensível, foram semeadas em potes, recebendo suprimento hídrico normal até 20 dias após a semeadura, quando houve diferenciação dos tratamentos hídricos. Avaliaram-se temperatura da folha (Tf), resistência difusiva (Rs), transpiração (E), potencial hídrico da folha (Ψw ) e concentração de prolina nas folhas (P). Foram utilizadas folhas adultas situadas no terço superior da haste principal, completamente expandidas. Observaram-se diferenças significativas entre as médias das variáveis entre cultivares e tratamentos. A cultivar resistente, quando submetida à suspensão da rega, apresentou alta Rs e Ψw mais negativo. O período de suspensão não foi suficiente para expressar diferenças marcantes na transpiração das cultivares, contudo demonstrou significante variação entre os dois tratamentos estudados. A cultivar Nigéria 55437 apresentou alta concentração de prolina mesmo quando cultivada no tratamento controle. Correlações negativas foram obtidas em Ψw x Rs e Ψw x P, e positivas em Tf x Rs, Tf x P e Rs x P, durante a suspensão de rega.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraJ. Mansur C. Nogueira, RejaneCavalcanti dos Santos, RoseaneBezerra Neto, EgídioFelipe dos Santos, Venézio1998-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5021Pesquisa Agropecuaria Brasileira; v.33, n.12, dez. 1998; 1963-1969Pesquisa Agropecuária Brasileira; v.33, n.12, dez. 1998; 1963-19691678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5021/7176info:eu-repo/semantics/openAccess2014-12-16T12:43:17Zoai:ojs.seer.sct.embrapa.br:article/5021Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-12-16T12:43:17Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Physiological behaviour of two peanut cultivars submitted to suppression watering
Comportamento fisiológico de duas cultivares de amendoim submetidas a diferentes regimes hídricos
title Physiological behaviour of two peanut cultivars submitted to suppression watering
spellingShingle Physiological behaviour of two peanut cultivars submitted to suppression watering
J. Mansur C. Nogueira, Rejane
Arachis hypogaea; transpiration; diffusive resistance; leaf water potential; proline
Arachis hypogaea; transpiração; resistência difusiva; potencial hídrico foliar; prolina
title_short Physiological behaviour of two peanut cultivars submitted to suppression watering
title_full Physiological behaviour of two peanut cultivars submitted to suppression watering
title_fullStr Physiological behaviour of two peanut cultivars submitted to suppression watering
title_full_unstemmed Physiological behaviour of two peanut cultivars submitted to suppression watering
title_sort Physiological behaviour of two peanut cultivars submitted to suppression watering
author J. Mansur C. Nogueira, Rejane
author_facet J. Mansur C. Nogueira, Rejane
Cavalcanti dos Santos, Roseane
Bezerra Neto, Egídio
Felipe dos Santos, Venézio
author_role author
author2 Cavalcanti dos Santos, Roseane
Bezerra Neto, Egídio
Felipe dos Santos, Venézio
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv J. Mansur C. Nogueira, Rejane
Cavalcanti dos Santos, Roseane
Bezerra Neto, Egídio
Felipe dos Santos, Venézio
dc.subject.por.fl_str_mv Arachis hypogaea; transpiration; diffusive resistance; leaf water potential; proline
Arachis hypogaea; transpiração; resistência difusiva; potencial hídrico foliar; prolina
topic Arachis hypogaea; transpiration; diffusive resistance; leaf water potential; proline
Arachis hypogaea; transpiração; resistência difusiva; potencial hídrico foliar; prolina
description Two peanuts (Arachis hypogaea L.) cultivars were evaluated for physiological behavior and resistance to drought in greenhouse conditions submitted to a 10 day period of watering suppression. The drought resistant (Nigeria 55437 - CNPA 76 AM) and sensible (IAC Tupã) cultivars were both potted and irrigated during 20 days after sowing. From this date on, only control plant received water while the other ones were submitted to watering suppression. The following parameters were evaluated: leaf temperature (Tf), diffusive resistance (Rs), transpiration (E), leaf water potential (Ψw) and proline concentration (P) on the leaflets. It was utilized adult leaflets from the high third of the main stem and completely extended. It were observed differences between cultivars and treatments studied. Nigeria 55437 showed high Rs and low Ψw and E when submitted to watering suppression. It showed high proline concentration even when was cultivated in normal conditions. It were observed negative correlations between Ψw x Rs and Ψw x P and positive between Tf x Rs, Tf x P and Rs x P during the suppression watering period.
publishDate 1998
dc.date.none.fl_str_mv 1998-12-01
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/5021
url https://seer.sct.embrapa.br/index.php/pab/article/view/5021
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5021/7176
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.33, n.12, dez. 1998; 1963-1969
Pesquisa Agropecuária Brasileira; v.33, n.12, dez. 1998; 1963-1969
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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