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| Registros recuperados : 32 | |
| Registros recuperados : 32 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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Data corrente: |
31/07/2015 |
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Data da última atualização: |
27/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUIMARÃES, C. M.; STONE, L. F.; CASTRO, A. P. de; MORAIS JUNIOR, O. P. de. |
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Afiliação: |
CLEBER MORAIS GUIMARAES, CNPAF; LUIS FERNANDO STONE, CNPAF; ADRIANO PEREIRA DE CASTRO, CNPAF; ODILON PEIXOTO DE MORAIS JUNIOR. |
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Título: |
Physiological parameters to select upland rice genotypes for tolerance to water deficit. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 7, p. 534-540, jul. 2015. |
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ISSN: |
0100-204X |
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DOI: |
10.1590/S0100-204X2015000700003 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the feasibility of using physiological parameters for water deficit tolerance, as an auxiliary method for selection of upland rice genotypes. Two experiments - with or without water deficit - were carried out in Porangatu, in the state of Goiás, Brazil; the water deficit experiment received about half of irrigation that was applied to the well-watered experiment. Four genotypes with different tolerance levels to water stress were evaluated. The UPLRI 7, B6144F-MR-6-0-0, and IR80312-6-B-3-2-B genotypes, under water stress conditions, during the day, showed lower stomatal diffusive resistance, higher leaf water potential, and lower leaf temperature than the control. These genotypes showed the highest grain yields under water stress conditions, which were 534, 601, and 636 kg ha-1, respectively, and did not differ significantly among them. They also showed lower drought susceptibility index than the other genotypes. 'BRS Soberana' (susceptible control) was totally unproductive under drought conditions. Leaf temperature is a easy?read parameter correlated to plant?water status, viable for selecting rice genotypes for water deficit tolerance. |
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Palavras-Chave: |
Leaf diffusive resistance; Leaf teperature; Leaf-water potential; Potencial de água de água na folha; Potencial de água na folha; Resistência difusiva foliar; Rsistência difusiva foliar; Temperatura foliar. |
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Thesagro: |
Arroz; Deficiência hídrica; Oryza Sativa; Resistência a seca. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/128171/1/Physiological-parameters.pdf
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Marc: |
LEADER 02238naa a2200325 a 4500
001 2021097
005 2019-02-27
008 2015 bl uuuu u00u1 u #d
022 $a0100-204X
024 7 $a10.1590/S0100-204X2015000700003$2DOI
100 1 $aGUIMARÃES, C. M.
245 $aPhysiological parameters to select upland rice genotypes for tolerance to water deficit.
260 $c2015
520 $aThe objective of this work was to evaluate the feasibility of using physiological parameters for water deficit tolerance, as an auxiliary method for selection of upland rice genotypes. Two experiments - with or without water deficit - were carried out in Porangatu, in the state of Goiás, Brazil; the water deficit experiment received about half of irrigation that was applied to the well-watered experiment. Four genotypes with different tolerance levels to water stress were evaluated. The UPLRI 7, B6144F-MR-6-0-0, and IR80312-6-B-3-2-B genotypes, under water stress conditions, during the day, showed lower stomatal diffusive resistance, higher leaf water potential, and lower leaf temperature than the control. These genotypes showed the highest grain yields under water stress conditions, which were 534, 601, and 636 kg ha-1, respectively, and did not differ significantly among them. They also showed lower drought susceptibility index than the other genotypes. 'BRS Soberana' (susceptible control) was totally unproductive under drought conditions. Leaf temperature is a easy?read parameter correlated to plant?water status, viable for selecting rice genotypes for water deficit tolerance.
650 $aArroz
650 $aDeficiência hídrica
650 $aOryza Sativa
650 $aResistência a seca
653 $aLeaf diffusive resistance
653 $aLeaf teperature
653 $aLeaf-water potential
653 $aPotencial de água de água na folha
653 $aPotencial de água na folha
653 $aResistência difusiva foliar
653 $aRsistência difusiva foliar
653 $aTemperatura foliar
700 1 $aSTONE, L. F.
700 1 $aCASTRO, A. P. de
700 1 $aMORAIS JUNIOR, O. P. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 50, n. 7, p. 534-540, jul. 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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