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: Pinho,Renzo Garcia Von, 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: Crop Breeding and Applied Biotechnology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000100203
Resumo: Abstract 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 maysAbstract 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.Crop Breeding and Applied Biotechnology2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000100203Crop Breeding and Applied Biotechnology v.20 n.1 2020reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332020v20n1a10info:eu-repo/semantics/openAccessSantos,Álvaro de OliveiraPinho,Renzo Garcia VonSouza,Vander Fillipe deGuimarães,Lauro José MoreiraBalestre,MárcioPires,Luiz Paulo MirandaSilva,Carlos Pereira daeng2020-03-20T00:00:00Zoai:scielo:S1984-70332020000100203Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2020-03-20T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
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
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
Pinho,Renzo Garcia Von
Souza,Vander Fillipe de
Guimarães,Lauro José Moreira
Balestre,Márcio
Pires,Luiz Paulo Miranda
Silva,Carlos Pereira da
author_role author
author2 Pinho,Renzo Garcia Von
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
Pinho,Renzo Garcia Von
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
topic Stress tolerance
water stress
water deficit
Zea mays
description Abstract 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 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000100203
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000100203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332020v20n1a10
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
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 Crop Breeding and Applied Biotechnology v.20 n.1 2020
reponame:Crop Breeding and Applied Biotechnology
instname:Sociedade Brasileira de Melhoramento de Plantas
instacron:CBAB
instname_str Sociedade Brasileira de Melhoramento de Plantas
instacron_str CBAB
institution CBAB
reponame_str Crop Breeding and Applied Biotechnology
collection Crop Breeding and Applied Biotechnology
repository.name.fl_str_mv Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas
repository.mail.fl_str_mv cbabjournal@gmail.com||cbab@ufv.br
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