Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering

Detalhes bibliográficos
Autor(a) principal: Raphael, Juan P.A. [UNESP]
Data de Publicação: 2022
Outros Autores: Echer, Fábio R., Rosolem, Ciro A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.eja.2022.126593
http://hdl.handle.net/11449/240642
Resumo: Cotton (Gossypium hirsutum L.) yield is decreased under low radiation, but there are few reports on possible interactions of N fertilizer application and light limitation on cotton production. The objective of this work was to evaluate growth, yield components, and boll distribution in cotton as affected by N rates under light restriction. Three experiments were conducted for two years in Central (Primavera do Leste and Chapadão do Sul) and Southeastern (Itapeva) Brazil. Cotton plants were shaded at early flowering to a 42 % reduction in global radiation for 16–25 days. Four N rates were used in Primavera do Leste and Itapeva; and three N rates and two genotypes, an early- (FM 906GLT) and a late-maturing (FM 983GLT) cultivar, were used in Chapadão do Sul. Shading decreased lint yield by 10 % in Primavera do Leste and by 12 % in Chapadão due to 24 % and 32 % reduction in boll number at the lower third of the plant, respectively. In Itapeva, the number of bolls at the lower fruiting branches was decreased 19% by shading, but a 10% lint yield reduction was observed only with 35 kg ha−1 of N. As to the main effects, lint yield and number of bolls increased with N rates up to 155, 142 and 105 kg ha−1, depending on the site. Lint yield of shaded plants was more responsive to higher N rates, which also increased plant height, number of bolls and the main stem node number of the last fruiting branch. Cotton cultivars had similar lint yields despite differences in boll distribution. At lower fruiting branches, the early-maturing cultivar showed an average boll number 59 % higher, but the late one produced 81 % and 63 % more bolls on the upper branches at 105 and 185 kg ha−1 of N, respectively. We concluded that N-deficiency inhibited the recovery of cotton from losses caused by shading, whereas a high-N availability minimizes damages after shading during blooming.
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spelling Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early floweringGossypium hirsutum L.Light stressNitrogen fertilizationYield componentsCotton (Gossypium hirsutum L.) yield is decreased under low radiation, but there are few reports on possible interactions of N fertilizer application and light limitation on cotton production. The objective of this work was to evaluate growth, yield components, and boll distribution in cotton as affected by N rates under light restriction. Three experiments were conducted for two years in Central (Primavera do Leste and Chapadão do Sul) and Southeastern (Itapeva) Brazil. Cotton plants were shaded at early flowering to a 42 % reduction in global radiation for 16–25 days. Four N rates were used in Primavera do Leste and Itapeva; and three N rates and two genotypes, an early- (FM 906GLT) and a late-maturing (FM 983GLT) cultivar, were used in Chapadão do Sul. Shading decreased lint yield by 10 % in Primavera do Leste and by 12 % in Chapadão due to 24 % and 32 % reduction in boll number at the lower third of the plant, respectively. In Itapeva, the number of bolls at the lower fruiting branches was decreased 19% by shading, but a 10% lint yield reduction was observed only with 35 kg ha−1 of N. As to the main effects, lint yield and number of bolls increased with N rates up to 155, 142 and 105 kg ha−1, depending on the site. Lint yield of shaded plants was more responsive to higher N rates, which also increased plant height, number of bolls and the main stem node number of the last fruiting branch. Cotton cultivars had similar lint yields despite differences in boll distribution. At lower fruiting branches, the early-maturing cultivar showed an average boll number 59 % higher, but the late one produced 81 % and 63 % more bolls on the upper branches at 105 and 185 kg ha−1 of N, respectively. We concluded that N-deficiency inhibited the recovery of cotton from losses caused by shading, whereas a high-N availability minimizes damages after shading during blooming.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Crop Science College of Agricultural Sciences São Paulo State University, Avenida Universitária, 3780Department of Agronomy São Paulo Western University, Raposo Tavares Highway, km 572Department of Crop Science College of Agricultural Sciences São Paulo State University, Avenida Universitária, 3780CAPES: 001CNPq: 166264/2015-6Universidade Estadual Paulista (UNESP)São Paulo Western UniversityRaphael, Juan P.A. [UNESP]Echer, Fábio R.Rosolem, Ciro A. [UNESP]2023-03-01T20:26:25Z2023-03-01T20:26:25Z2022-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.eja.2022.126593European Journal of Agronomy, v. 140.1161-0301http://hdl.handle.net/11449/24064210.1016/j.eja.2022.1265932-s2.0-85135909190Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEuropean Journal of Agronomyinfo:eu-repo/semantics/openAccess2023-03-01T20:26:25Zoai:repositorio.unesp.br:11449/240642Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:06:08.600667Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
title Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
spellingShingle Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
Raphael, Juan P.A. [UNESP]
Gossypium hirsutum L.
Light stress
Nitrogen fertilization
Yield components
title_short Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
title_full Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
title_fullStr Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
title_full_unstemmed Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
title_sort Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
author Raphael, Juan P.A. [UNESP]
author_facet Raphael, Juan P.A. [UNESP]
Echer, Fábio R.
Rosolem, Ciro A. [UNESP]
author_role author
author2 Echer, Fábio R.
Rosolem, Ciro A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
São Paulo Western University
dc.contributor.author.fl_str_mv Raphael, Juan P.A. [UNESP]
Echer, Fábio R.
Rosolem, Ciro A. [UNESP]
dc.subject.por.fl_str_mv Gossypium hirsutum L.
Light stress
Nitrogen fertilization
Yield components
topic Gossypium hirsutum L.
Light stress
Nitrogen fertilization
Yield components
description Cotton (Gossypium hirsutum L.) yield is decreased under low radiation, but there are few reports on possible interactions of N fertilizer application and light limitation on cotton production. The objective of this work was to evaluate growth, yield components, and boll distribution in cotton as affected by N rates under light restriction. Three experiments were conducted for two years in Central (Primavera do Leste and Chapadão do Sul) and Southeastern (Itapeva) Brazil. Cotton plants were shaded at early flowering to a 42 % reduction in global radiation for 16–25 days. Four N rates were used in Primavera do Leste and Itapeva; and three N rates and two genotypes, an early- (FM 906GLT) and a late-maturing (FM 983GLT) cultivar, were used in Chapadão do Sul. Shading decreased lint yield by 10 % in Primavera do Leste and by 12 % in Chapadão due to 24 % and 32 % reduction in boll number at the lower third of the plant, respectively. In Itapeva, the number of bolls at the lower fruiting branches was decreased 19% by shading, but a 10% lint yield reduction was observed only with 35 kg ha−1 of N. As to the main effects, lint yield and number of bolls increased with N rates up to 155, 142 and 105 kg ha−1, depending on the site. Lint yield of shaded plants was more responsive to higher N rates, which also increased plant height, number of bolls and the main stem node number of the last fruiting branch. Cotton cultivars had similar lint yields despite differences in boll distribution. At lower fruiting branches, the early-maturing cultivar showed an average boll number 59 % higher, but the late one produced 81 % and 63 % more bolls on the upper branches at 105 and 185 kg ha−1 of N, respectively. We concluded that N-deficiency inhibited the recovery of cotton from losses caused by shading, whereas a high-N availability minimizes damages after shading during blooming.
publishDate 2022
dc.date.none.fl_str_mv 2022-10-01
2023-03-01T20:26:25Z
2023-03-01T20:26:25Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.eja.2022.126593
European Journal of Agronomy, v. 140.
1161-0301
http://hdl.handle.net/11449/240642
10.1016/j.eja.2022.126593
2-s2.0-85135909190
url http://dx.doi.org/10.1016/j.eja.2022.126593
http://hdl.handle.net/11449/240642
identifier_str_mv European Journal of Agronomy, v. 140.
1161-0301
10.1016/j.eja.2022.126593
2-s2.0-85135909190
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv European Journal of Agronomy
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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