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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
06/04/2016 |
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Data da última atualização: |
07/04/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, C. M.; STONE, L. F.; SILVA, A. C. de L. |
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Afiliação: |
CLEBER MORAIS GUIMARAES, CNPAF; LUIS FERNANDO STONE, CNPAF; ANA CLAUDIA DE L. SILVA, INSTITUTO FEDERAL DE GOIÁS. |
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Título: |
Evapotranspiration and grain yield of upland rice as affected by water deficit. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 20, n. 5, p. 441-446. 2016. |
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ISSN: |
1807-1929 |
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DOI: |
10.1590/1807-1929/agriambi.v20n5p441-446 |
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Idioma: |
Inglês |
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Conteúdo: |
To achieve an accurate phenotyping for drought tolerance, it is important to control water stress levels and timing. This study aimed to determine water use by upland rice plants during periods of irrigation withholding and its relationship with grain yield in order to increase the efficiency of this phenotyping. Two experiments were carried out in a randomized block design in which six water treatments (irrigation withholding for periods of 2, 4, 6, 8, 10 and 12 days) were compared, with four replicates. In the first experiment, treatments were applied at the R3 stage (panicle exsertion) and, in the second, at the R5 stage (beginning of grain filling). The amount of water evapotranspired was determined by the difference between the soil water storage at the beginning and at the end of irrigation withholding periods, from the surface to 80-cm depth. Evapotranspiration of upland rice from R3 stage was higher compared to that observed from R5 stage, when subjected to similar irrigation withholding periods in both growth stages. Rice grain yield is more sensitive to irrigation withholding imposed from R5 stage than from R3 stage. |
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Palavras-Chave: |
Estádios de desenvolvimento; Supressão da irrigação. |
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Thesagro: |
Arroz; Deficiência hídrica; Evapotranspiração; Irrigação; Oryza sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142096/1/CNPAF-2016-cmg.pdf
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Marc: |
LEADER 01968naa a2200253 a 4500
001 2042749
005 2016-04-07
008 2016 bl uuuu u00u1 u #d
022 $a1807-1929
024 7 $a10.1590/1807-1929/agriambi.v20n5p441-446$2DOI
100 1 $aGUIMARÃES, C. M.
245 $aEvapotranspiration and grain yield of upland rice as affected by water deficit.$h[electronic resource]
260 $c2016
520 $aTo achieve an accurate phenotyping for drought tolerance, it is important to control water stress levels and timing. This study aimed to determine water use by upland rice plants during periods of irrigation withholding and its relationship with grain yield in order to increase the efficiency of this phenotyping. Two experiments were carried out in a randomized block design in which six water treatments (irrigation withholding for periods of 2, 4, 6, 8, 10 and 12 days) were compared, with four replicates. In the first experiment, treatments were applied at the R3 stage (panicle exsertion) and, in the second, at the R5 stage (beginning of grain filling). The amount of water evapotranspired was determined by the difference between the soil water storage at the beginning and at the end of irrigation withholding periods, from the surface to 80-cm depth. Evapotranspiration of upland rice from R3 stage was higher compared to that observed from R5 stage, when subjected to similar irrigation withholding periods in both growth stages. Rice grain yield is more sensitive to irrigation withholding imposed from R5 stage than from R3 stage.
650 $aArroz
650 $aDeficiência hídrica
650 $aEvapotranspiração
650 $aIrrigação
650 $aOryza sativa
653 $aEstádios de desenvolvimento
653 $aSupressão da irrigação
700 1 $aSTONE, L. F.
700 1 $aSILVA, A. C. de L.
773 $tRevista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande$gv. 20, n. 5, p. 441-446. 2016.
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Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 7 | |
| 4. |  | DRUMOND, M. A.; BARROS, N. F. de; RODRIGUES, B. S. A.; FONTE, A. J. C. da; PASSOS, M. A. A. Efeito dos niveis de fosforo sobre o desenvolvimento do Eucalyptus urophylla na regiao de Itaporange, SE. In: CONGRESSO FLORESTAL PANAMERICANO, 1.; CONGRESSO FLORESTAL BRASILEIRO, 7., 1993, Curitiba. Anais... Curitiba: SBS: SBEF, 1993. v. 1, p. 243-244.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 5. | | ALVARENGA, R.; AUAD, A. M.; MORAES, J. C.; SILVA, S. E. B.; RODRIGUES, B. S.; CLAUDINO, S. S. Efeito de diferentes doses de adubação na sobrevivência ninfal de Mahanarva spectabilis (Hemiptera: Cercopidae). In: CONGRESSO DE PÓS-GRADUAÇÃO DA UFLA, 25., 2016, Lavras, MG. Anais... Lavras, 2016. 6 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | ALVARENGA, R.; AUAD, A. M.; MORAES, J. C.; SILVA, S. E. B.; RODRIGUES, B. S.; SILVA, G. B. Spittlebugs (Hemiptera: Cercopidae) and their host plants: a strategy for pasture diversification. Applied Entomology and Zoology, v. 52, n. 4, p. 653-660, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | AUAD, A. M.; RESENDE, T. T. de; SOUZA SOBRINHO, F. de; SILVA, S. E. B.; CLAUDINO, S. S.; RODRIGUES, B. S. Seleção de genóripos de Brachiaria ruziziensis (Germain & Evrard) resistente à Mahanarva spactabilis (Distant, 1909) (Hemiptera: Cercopidae). In: CONGRESSO DE PÓS-GRADUAÇÃO DA UFLA, 25., 2016, Lavras, MG. Anais... Lavras: Universidade Federal de Lavras, 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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