Effects of water stress on cassava root production

Detalhes bibliográficos
Autor(a) principal: Oliveira, Sizernando Luiz de
Data de Publicação: 2014
Outros Autores: Macêdo, Manoel Moacir Costa, Porto, Márcio Carvalho Marques
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/15546
Resumo: Effects of water stress on root production of cassava (Manihot esculenta Crantz) obtained in a trial conducted at the Irecé Exp. Station, Bahia Brazil, are reported. The experimental design consisted of randomized blocks, with six treatments and four replications. Plants were submitted to water stress at various stages of development, and water were applied by the furrow irrigation method. Four hundred and forty m3 of water/ha/irrigation, equivalent to 44 mm, were used. At harvest – one year after planting - the root weight of 24 available plants from each plot was determined. The most critical periods to water stress occurred in the first six months of the plant cycle, which corresponded to the rooting and tuberization iniciation stages, when production was reduced by 58% and 62%, respectively, in comparison to yield in the continuous irrigation treatment.
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spelling Effects of water stress on cassava root productionEfeito do déficit de água na produção de raízes de mandiocaManihot esculenta; irrigation; drought tolerance; tuberizationirrigação; tolerância à seca; tuberização; Manihot esculentaEffects of water stress on root production of cassava (Manihot esculenta Crantz) obtained in a trial conducted at the Irecé Exp. Station, Bahia Brazil, are reported. The experimental design consisted of randomized blocks, with six treatments and four replications. Plants were submitted to water stress at various stages of development, and water were applied by the furrow irrigation method. Four hundred and forty m3 of water/ha/irrigation, equivalent to 44 mm, were used. At harvest – one year after planting - the root weight of 24 available plants from each plot was determined. The most critical periods to water stress occurred in the first six months of the plant cycle, which corresponded to the rooting and tuberization iniciation stages, when production was reduced by 58% and 62%, respectively, in comparison to yield in the continuous irrigation treatment.Com o objetivo de determinar as consequências do déficit de água na produção de raízes de mandioca (Manihot esculenta Crantz), realizou-se o presente trabalho na Unidade Estadual de Pesquisa (UEP) da Empresa de Pesquisa Agropecuária da Bahia (EPABA), em Irecê, utilizando-se a cultivar Aipim-Bravo. O delineamento experimental utilizado foi o de blocos ao acaso, com seis tratamentos e quatro repetições. Aplicou-se o método de irrigação em sulcos de infiltração, fechados e em nível com um turno de rega de sete dias, colocando-se 440 m3 de água/ha/irrigação, equivalente a 44 mm. Por ocasião da colheita, um ano após o plantio, determinou-se o peso das raízes das vinte e quatro plantas úteis de cada parcela. Os estágios do ciclo fenológico da cultura que se apresentaram mais críticos ao déficit hídrico foram os períodos de enraizamento e tuberização que estão compreendidos entre 30 e 150 dias após o plantio. Os déficits hídricos a partir do sexto mês do ciclo fenológico não provocaram reduções significativas na produção.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraOliveira, Sizernando Luiz deMacêdo, Manoel Moacir CostaPorto, Márcio Carvalho Marques2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15546Pesquisa Agropecuaria Brasileira; v.17, n.1, jan. 1982; 121-124Pesquisa Agropecuária Brasileira; v.17, n.1, jan. 1982; 121-1241678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15546/9530info:eu-repo/semantics/openAccess2014-04-15T19:45:18Zoai:ojs.seer.sct.embrapa.br:article/15546Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:45:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of water stress on cassava root production
Efeito do déficit de água na produção de raízes de mandioca
title Effects of water stress on cassava root production
spellingShingle Effects of water stress on cassava root production
Oliveira, Sizernando Luiz de
Manihot esculenta; irrigation; drought tolerance; tuberization
irrigação; tolerância à seca; tuberização; Manihot esculenta
title_short Effects of water stress on cassava root production
title_full Effects of water stress on cassava root production
title_fullStr Effects of water stress on cassava root production
title_full_unstemmed Effects of water stress on cassava root production
title_sort Effects of water stress on cassava root production
author Oliveira, Sizernando Luiz de
author_facet Oliveira, Sizernando Luiz de
Macêdo, Manoel Moacir Costa
Porto, Márcio Carvalho Marques
author_role author
author2 Macêdo, Manoel Moacir Costa
Porto, Márcio Carvalho Marques
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Oliveira, Sizernando Luiz de
Macêdo, Manoel Moacir Costa
Porto, Márcio Carvalho Marques
dc.subject.por.fl_str_mv Manihot esculenta; irrigation; drought tolerance; tuberization
irrigação; tolerância à seca; tuberização; Manihot esculenta
topic Manihot esculenta; irrigation; drought tolerance; tuberization
irrigação; tolerância à seca; tuberização; Manihot esculenta
description Effects of water stress on root production of cassava (Manihot esculenta Crantz) obtained in a trial conducted at the Irecé Exp. Station, Bahia Brazil, are reported. The experimental design consisted of randomized blocks, with six treatments and four replications. Plants were submitted to water stress at various stages of development, and water were applied by the furrow irrigation method. Four hundred and forty m3 of water/ha/irrigation, equivalent to 44 mm, were used. At harvest – one year after planting - the root weight of 24 available plants from each plot was determined. The most critical periods to water stress occurred in the first six months of the plant cycle, which corresponded to the rooting and tuberization iniciation stages, when production was reduced by 58% and 62%, respectively, in comparison to yield in the continuous irrigation treatment.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/15546
url https://seer.sct.embrapa.br/index.php/pab/article/view/15546
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/15546/9530
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.17, n.1, jan. 1982; 121-124
Pesquisa Agropecuária Brasileira; v.17, n.1, jan. 1982; 121-124
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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