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

Detalhes bibliográficos
Autor(a) principal: SANTOS, A. de O.
Data de Publicação: 2020
Outros Autores: VON PINHO, R. G., SOUZA, V. F. de, GUIMARAES, L. J. M., BALESTRE, M., PIRES, L. P. M., SILVA, C. P. da
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/1121633
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 hybrids.Tolerância ao estresseEstresse hídricoDéficit hídricoMilhoDeficiência HídricaGrãoRendimentoWater 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 restrictionÁlvaro de Oliveira Santos, Universidade Federal de Lavras; Renzo Garcia Von Pinho, Universidade Federal de Lavras; Vander Fillipe de Souza, Universidade Federal de Lavras; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Márcio Balestre, Universidade Federal de Lavras; Luiz Paulo Miranda Pires, Universidade Federal de Lavras; Carlos Pereira da Silva, Universidade Federal de Lavras.SANTOS, A. de O.VON PINHO, R. G.SOUZA, V. F. deGUIMARAES, L. J. M.BALESTRE, M.PIRES, L. P. M.SILVA, C. P. da2020-04-15T01:01:16Z2020-04-15T01:01:16Z2020-04-1420202020-04-20T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCrop Breeding and Applied Biotechnology, v. 20, n. 1, e176020110, 2020.http://www.alice.cnptia.embrapa.br/alice/handle/doc/112163310.1590/1984- 70332020v20n1a10enginfo: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:EMBRAPA2020-04-15T01:01:23Zoai:www.alice.cnptia.embrapa.br:doc/1121633Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542020-04-15T01:01:23falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542020-04-15T01:01:23Repositório 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 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, A. de O.
Tolerância ao estresse
Estresse hídrico
Déficit hídrico
Milho
Deficiência Hídrica
Grão
Rendimento
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, A. de O.
author_facet SANTOS, A. de O.
VON PINHO, R. G.
SOUZA, V. F. de
GUIMARAES, L. J. M.
BALESTRE, M.
PIRES, L. P. M.
SILVA, C. P. da
author_role author
author2 VON PINHO, R. G.
SOUZA, V. F. de
GUIMARAES, L. J. M.
BALESTRE, M.
PIRES, L. P. M.
SILVA, C. P. da
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Álvaro de Oliveira Santos, Universidade Federal de Lavras; Renzo Garcia Von Pinho, Universidade Federal de Lavras; Vander Fillipe de Souza, Universidade Federal de Lavras; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Márcio Balestre, Universidade Federal de Lavras; Luiz Paulo Miranda Pires, Universidade Federal de Lavras; Carlos Pereira da Silva, Universidade Federal de Lavras.
dc.contributor.author.fl_str_mv SANTOS, A. de O.
VON PINHO, R. G.
SOUZA, V. F. de
GUIMARAES, L. J. M.
BALESTRE, M.
PIRES, L. P. M.
SILVA, C. P. da
dc.subject.por.fl_str_mv Tolerância ao estresse
Estresse hídrico
Déficit hídrico
Milho
Deficiência Hídrica
Grão
Rendimento
topic Tolerância ao estresse
Estresse hídrico
Déficit hídrico
Milho
Deficiência Hídrica
Grão
Rendimento
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 2020-04-15T01:01:16Z
2020-04-15T01:01:16Z
2020-04-14
2020
2020-04-20T11:11:11Z
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 Crop Breeding and Applied Biotechnology, v. 20, n. 1, e176020110, 2020.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121633
10.1590/1984- 70332020v20n1a10
identifier_str_mv Crop Breeding and Applied Biotechnology, v. 20, n. 1, e176020110, 2020.
10.1590/1984- 70332020v20n1a10
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121633
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
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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