Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids

Detalhes bibliográficos
Autor(a) principal: Santos, Álvaro de Oliveira
Data de Publicação: 2020
Outros Autores: Von Pinho, Renzo Garcia, Souza, Vander Fillipe de, Guimarães, Lauro José Moreira, Balestre, Márcio, Pires, Luiz Paulo Miranda, Silva, Carlos Pereira da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/43155
Resumo: Water deficit stress is the abiotic factor with the highest impact on crop yield. The objective of this study was to evaluate grain yield (GY), the anthesis-silking interval (ASI) and drought tolerance indices in maize hybrids. We evaluated GY and the ASI of 86 hybrids under two moisture levels (normal irrigation and water stress) for three consecutive years. The stress susceptibility index, water stress tolerance, drought resistance coefficient, drought resistance index, stress tolerance index and harmonic mean were evaluated. There were significant hybrid x environment interactions for GY and the ASI. Differences in the ASI among environments ranged from 0 to 5 days. The hybrids P3862, 1I873, 1I923, 1I862 and 1J1211 showed high GY, associated with the highest drought tolerance indices. The stress tolerance index and harmonic mean indices can be used to identify higher-yielding maize hybrids in environments with and without water restriction.
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spelling Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybridsStress toleranceWater stressWater deficitZea maysGrãos - RendimentoMilho - SilagemPlantas - Tolerância à secaEstresse hídricoDéficit hídricoWater deficit stress is the abiotic factor with the highest impact on crop yield. The objective of this study was to evaluate grain yield (GY), the anthesis-silking interval (ASI) and drought tolerance indices in maize hybrids. We evaluated GY and the ASI of 86 hybrids under two moisture levels (normal irrigation and water stress) for three consecutive years. The stress susceptibility index, water stress tolerance, drought resistance coefficient, drought resistance index, stress tolerance index and harmonic mean were evaluated. There were significant hybrid x environment interactions for GY and the ASI. Differences in the ASI among environments ranged from 0 to 5 days. The hybrids P3862, 1I873, 1I923, 1I862 and 1J1211 showed high GY, associated with the highest drought tolerance indices. The stress tolerance index and harmonic mean indices can be used to identify higher-yielding maize hybrids in environments with and without water restriction.Crop Breeding and Applied Biotechnology2020-09-22T17:58:07Z2020-09-22T17:58:07Z2020-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSANTOS, A. de O. et al. Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 20, n. 1, e176020110, 2020. DOI: https://doi.org/10.1590/1984-70332020v20n1a10.http://repositorio.ufla.br/jspui/handle/1/43155Sociedade Brasileira de Melhoramento de Plantasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessSantos, Álvaro de OliveiraVon Pinho, Renzo GarciaSouza, Vander Fillipe deGuimarães, Lauro José MoreiraBalestre, MárcioPires, Luiz Paulo MirandaSilva, Carlos Pereira daeng2023-05-26T18:52:08Zoai:localhost:1/43155Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:52:08Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
title Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
spellingShingle Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
Santos, Álvaro de Oliveira
Stress tolerance
Water stress
Water deficit
Zea mays
Grãos - Rendimento
Milho - Silagem
Plantas - Tolerância à seca
Estresse hídrico
Déficit hídrico
title_short Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
title_full Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
title_fullStr Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
title_full_unstemmed Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
title_sort Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids
author Santos, Álvaro de Oliveira
author_facet Santos, Álvaro de Oliveira
Von Pinho, Renzo Garcia
Souza, Vander Fillipe de
Guimarães, Lauro José Moreira
Balestre, Márcio
Pires, Luiz Paulo Miranda
Silva, Carlos Pereira da
author_role author
author2 Von Pinho, Renzo Garcia
Souza, Vander Fillipe de
Guimarães, Lauro José Moreira
Balestre, Márcio
Pires, Luiz Paulo Miranda
Silva, Carlos Pereira da
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, Álvaro de Oliveira
Von Pinho, Renzo Garcia
Souza, Vander Fillipe de
Guimarães, Lauro José Moreira
Balestre, Márcio
Pires, Luiz Paulo Miranda
Silva, Carlos Pereira da
dc.subject.por.fl_str_mv Stress tolerance
Water stress
Water deficit
Zea mays
Grãos - Rendimento
Milho - Silagem
Plantas - Tolerância à seca
Estresse hídrico
Déficit hídrico
topic Stress tolerance
Water stress
Water deficit
Zea mays
Grãos - Rendimento
Milho - Silagem
Plantas - Tolerância à seca
Estresse hídrico
Déficit hídrico
description Water deficit stress is the abiotic factor with the highest impact on crop yield. The objective of this study was to evaluate grain yield (GY), the anthesis-silking interval (ASI) and drought tolerance indices in maize hybrids. We evaluated GY and the ASI of 86 hybrids under two moisture levels (normal irrigation and water stress) for three consecutive years. The stress susceptibility index, water stress tolerance, drought resistance coefficient, drought resistance index, stress tolerance index and harmonic mean were evaluated. There were significant hybrid x environment interactions for GY and the ASI. Differences in the ASI among environments ranged from 0 to 5 days. The hybrids P3862, 1I873, 1I923, 1I862 and 1J1211 showed high GY, associated with the highest drought tolerance indices. The stress tolerance index and harmonic mean indices can be used to identify higher-yielding maize hybrids in environments with and without water restriction.
publishDate 2020
dc.date.none.fl_str_mv 2020-09-22T17:58:07Z
2020-09-22T17:58:07Z
2020-03
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 SANTOS, A. de O. et al. Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 20, n. 1, e176020110, 2020. DOI: https://doi.org/10.1590/1984-70332020v20n1a10.
http://repositorio.ufla.br/jspui/handle/1/43155
identifier_str_mv SANTOS, A. de O. et al. Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 20, n. 1, e176020110, 2020. DOI: https://doi.org/10.1590/1984-70332020v20n1a10.
url http://repositorio.ufla.br/jspui/handle/1/43155
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
dc.source.none.fl_str_mv Sociedade Brasileira de Melhoramento de Plantas
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439255178051584

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