Nitrogen fertilization can mitigate cotton yield loss by temporary shading at early flowering
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
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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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) |
repository.mail.fl_str_mv |
|
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1808128236782092288 |