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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/02/2021 |
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Data da última atualização: |
19/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, M. J. M.; SIMOES, W. L.; TABOSA, J. N.; CAMARA, T. R.; WILLADINO, L. G. |
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Afiliação: |
Miguel Julio Machado Guimarães; WELSON LIMA SIMOES, CPATSA; José Nildo Tabosa; Terezinha Rangel Camara; Lila Gomes Willadino. |
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Título: |
Gas exchange and enzymatic metabolism in grain sorghum varieties irrigated with saline water. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, v. 19, e1188, 2020. |
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DOI: |
https://doi.org/10.18512/rbms2020v19e1188 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the effect of irrigation water salinity on gas exchange and antioxidative system responses of grain sorghum varieties. An experiment was conducted in a greenhouse located at the headquarters of Embrapa Semiarid Agriculture, Petrolina-PE, Brazil. The experimental design was randomized blocks, in a 6 x 5 factorial scheme. Six varieties of grain sorghum irrigated with saline water with five levels of salinity were evaluated. Photosynthesis and transpiration rate, stomatal conductance, leaf temperature, intrinsic and instantaneous water use efficiency, relative water content and leaf turgor potential were evaluated, as well as the activity of the enzymes catalase, ascorbate peroxidase and superoxide dismutase, and shoot biomass production. It was observed that irrigation with saline water causes reduction in the gas exchange and water status of grain sorghum varieties. The antioxidative system was activated in the six sorghum varieties to avoid the accumulation of reactive oxygen species, and the synchronism between the enzymes led to a better response of shoot dry mass production of the Ponta Negra variety. |
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Palavras-Chave: |
Efeito da salinidade; Sistema antioxidativo. |
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Thesagro: |
Água de Irrigação; Salinidade; Sorghum Bicolor; Sorgo. |
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Thesaurus Nal: |
Grain sorghum; Water salinity. |
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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/221349/1/GAS-EXCHANGE-AND-ENZYMATIC-METABOLISM-2020.pdf
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Marc: |
LEADER 02008naa a2200277 a 4500
001 2130158
005 2021-02-19
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.18512/rbms2020v19e1188$2DOI
100 1 $aGUIMARÃES, M. J. M.
245 $aGas exchange and enzymatic metabolism in grain sorghum varieties irrigated with saline water.$h[electronic resource]
260 $c2020
520 $aThe objective of this study was to evaluate the effect of irrigation water salinity on gas exchange and antioxidative system responses of grain sorghum varieties. An experiment was conducted in a greenhouse located at the headquarters of Embrapa Semiarid Agriculture, Petrolina-PE, Brazil. The experimental design was randomized blocks, in a 6 x 5 factorial scheme. Six varieties of grain sorghum irrigated with saline water with five levels of salinity were evaluated. Photosynthesis and transpiration rate, stomatal conductance, leaf temperature, intrinsic and instantaneous water use efficiency, relative water content and leaf turgor potential were evaluated, as well as the activity of the enzymes catalase, ascorbate peroxidase and superoxide dismutase, and shoot biomass production. It was observed that irrigation with saline water causes reduction in the gas exchange and water status of grain sorghum varieties. The antioxidative system was activated in the six sorghum varieties to avoid the accumulation of reactive oxygen species, and the synchronism between the enzymes led to a better response of shoot dry mass production of the Ponta Negra variety.
650 $aGrain sorghum
650 $aWater salinity
650 $aÁgua de Irrigação
650 $aSalinidade
650 $aSorghum Bicolor
650 $aSorgo
653 $aEfeito da salinidade
653 $aSistema antioxidativo
700 1 $aSIMOES, W. L.
700 1 $aTABOSA, J. N.
700 1 $aCAMARA, T. R.
700 1 $aWILLADINO, L. G.
773 $tRevista Brasileira de Milho e Sorgo$gv. 19, e1188, 2020.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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