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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/04/2020 |
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Data da última atualização: |
20/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
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. |
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Afiliação: |
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. |
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Título: |
Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 20, n. 1, e176020110, 2020. |
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DOI: |
10.1590/1984- 70332020v20n1a10 |
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Idioma: |
Inglês |
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Conteúdo: |
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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Palavras-Chave: |
Déficit hídrico; Estresse hídrico; Tolerância ao estresse. |
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Thesagro: |
Deficiência Hídrica; Grão; Milho; Rendimento. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212316/1/Grain-yield.pdf
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Marc: |
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001 2121633
005 2020-04-20
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1590/1984- 70332020v20n1a10$2DOI
100 1 $aSANTOS, A. de O.
245 $aGrain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids.$h[electronic resource]
260 $c2020
520 $aWater 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
650 $aDeficiência Hídrica
650 $aGrão
650 $aMilho
650 $aRendimento
653 $aDéficit hídrico
653 $aEstresse hídrico
653 $aTolerância ao estresse
700 1 $aVON PINHO, R. G.
700 1 $aSOUZA, V. F. de
700 1 $aGUIMARAES, L. J. M.
700 1 $aBALESTRE, M.
700 1 $aPIRES, L. P. M.
700 1 $aSILVA, C. P. da
773 $tCrop Breeding and Applied Biotechnology$gv. 20, n. 1, e176020110, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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| 1. |  | 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. Grain yield, anthesis-silking interval and drought tolerance indices of tropical maize hybrids. Crop Breeding and Applied Biotechnology, v. 20, n. 1, e176020110, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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