Cotton response to water deficits at different growth stages.

Detalhes bibliográficos
Autor(a) principal: ZONTA, J. H.
Data de Publicação: 2017
Outros Autores: BRANDAO, Z. N., RODRIGUES, J. I. da S., SOFIATTI, V.
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/1083104
Resumo: Water deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle.
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spelling Cotton response to water deficits at different growth stages.ProdutividadeBotão floralAlgodãoÁguaIrrigaçãoCottonIrrigationWater deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle.JOAO HENRIQUE ZONTA, CNPA; ZIANY NEIVA BRANDAO, CNPA; JOSIANE ISABELA DA SILVA RODRIGUES, CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO; VALDINEI SOFIATTI, CNPA.ZONTA, J. H.BRANDAO, Z. N.RODRIGUES, J. I. da S.SOFIATTI, V.2017-12-20T23:29:06Z2017-12-20T23:29:06Z2017-12-2020172017-12-20T23:29:06Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Caatinga, Mossoró, v. 30, n. 4, p. 980-990, out./dez., 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083104enginfo: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:EMBRAPA2017-12-20T23:29:14Zoai:www.alice.cnptia.embrapa.br:doc/1083104Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-12-20T23:29:14falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-12-20T23:29:14Repositório 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 Cotton response to water deficits at different growth stages.
title Cotton response to water deficits at different growth stages.
spellingShingle Cotton response to water deficits at different growth stages.
ZONTA, J. H.
Produtividade
Botão floral
Algodão
Água
Irrigação
Cotton
Irrigation
title_short Cotton response to water deficits at different growth stages.
title_full Cotton response to water deficits at different growth stages.
title_fullStr Cotton response to water deficits at different growth stages.
title_full_unstemmed Cotton response to water deficits at different growth stages.
title_sort Cotton response to water deficits at different growth stages.
author ZONTA, J. H.
author_facet ZONTA, J. H.
BRANDAO, Z. N.
RODRIGUES, J. I. da S.
SOFIATTI, V.
author_role author
author2 BRANDAO, Z. N.
RODRIGUES, J. I. da S.
SOFIATTI, V.
author2_role author
author
author
dc.contributor.none.fl_str_mv JOAO HENRIQUE ZONTA, CNPA; ZIANY NEIVA BRANDAO, CNPA; JOSIANE ISABELA DA SILVA RODRIGUES, CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO; VALDINEI SOFIATTI, CNPA.
dc.contributor.author.fl_str_mv ZONTA, J. H.
BRANDAO, Z. N.
RODRIGUES, J. I. da S.
SOFIATTI, V.
dc.subject.por.fl_str_mv Produtividade
Botão floral
Algodão
Água
Irrigação
Cotton
Irrigation
topic Produtividade
Botão floral
Algodão
Água
Irrigação
Cotton
Irrigation
description Water deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-20T23:29:06Z
2017-12-20T23:29:06Z
2017-12-20
2017
2017-12-20T23:29:06Z
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 Revista Caatinga, Mossoró, v. 30, n. 4, p. 980-990, out./dez., 2017.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083104
identifier_str_mv Revista Caatinga, Mossoró, v. 30, n. 4, p. 980-990, out./dez., 2017.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083104
dc.language.iso.fl_str_mv eng
language eng
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eu_rights_str_mv openAccess
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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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