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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
25/01/2022 |
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Data da última atualização: |
13/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ÁVILA, R. G.; MAGALHAES, P. C.; SILVA, E. M. da; ALVARENGA, A. A. de; REIS, C. O. dos; CUSTÓDIO. A. M.; JAKELAITIS, A.; SOUZA, T. C. de. |
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Afiliação: |
RONIEL GERALDO ÁVILA, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; EDER MARCOS DA SILVA, Universidade Federal de Lavras; AMAURI ALVES DE ALVARENGA, Universidade Federal de Lavras; CAROLINE OLIVEIRA DOS REIS, Universidade Federal de Lavras; ALDO MAX CUSTÓDIO, Instituto Federal Goiano; ADRIANO JAKELAITIS, Instituto Federal Goiano; THIAGO CORRÊA DE SOUZA, Universidade Federal de Alfenas. |
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Título: |
Foliar application of potassium nitrate induces tolerance to water deficit in pre-flowering sorghum plants. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 44, n. 1, e53069, 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the the ability of foliar application of potassium nitrate (KNO3) to induce water deficit tolerance in sorghum plants (Sorghum bicolor cv. P898012) subjected to water deficit at pre-flowering. The experiment was conducted under greenhouse conditions with 4 treatments: field capacity (FC), water deficit (WD), field capacity + KNO3 (FC + KNO3), and water deficit + KNO3 (WD + KNO3). Two foliar applications of 3% (m/v) KNO3 were made, the first on day zero of stress and the second on the fifth day. All analyses were performed after 12 days of stress (end of stress). Foliar application of KNO3 to irrigated plants led to increases in relative chlorophyll content, photosynthetic rate, stomatal conductance, transpiration, and carboxylation efficiency. It also induced increases in leaf concentrations of P, Mg, S, Cu, and Fe, in addition to height growth. Under water deficit conditions, plants treated with KNO3 presented higher relative chlorophyll content, leaf area, photosynthetic rate, stomatal conductance, transpiration, carboxylation efficiency, and higher levels of P, K, Mg, S, Cu, and Fe than those not treated with KNO3. The morphometry of the root system was not altered by the treatments. In addition, plants treated with KNO3 under water deficit conditions showed higher growth and a grain yield 32.2% higher than those that did not receive KNO3. These results demonstrated that KNO3 applied to the leaves induced water deficit tolerance in sorghum plants subjected to severe water stress at pre-flowering. MenosThe objective of this study was to evaluate the the ability of foliar application of potassium nitrate (KNO3) to induce water deficit tolerance in sorghum plants (Sorghum bicolor cv. P898012) subjected to water deficit at pre-flowering. The experiment was conducted under greenhouse conditions with 4 treatments: field capacity (FC), water deficit (WD), field capacity + KNO3 (FC + KNO3), and water deficit + KNO3 (WD + KNO3). Two foliar applications of 3% (m/v) KNO3 were made, the first on day zero of stress and the second on the fifth day. All analyses were performed after 12 days of stress (end of stress). Foliar application of KNO3 to irrigated plants led to increases in relative chlorophyll content, photosynthetic rate, stomatal conductance, transpiration, and carboxylation efficiency. It also induced increases in leaf concentrations of P, Mg, S, Cu, and Fe, in addition to height growth. Under water deficit conditions, plants treated with KNO3 presented higher relative chlorophyll content, leaf area, photosynthetic rate, stomatal conductance, transpiration, carboxylation efficiency, and higher levels of P, K, Mg, S, Cu, and Fe than those not treated with KNO3. The morphometry of the root system was not altered by the treatments. In addition, plants treated with KNO3 under water deficit conditions showed higher growth and a grain yield 32.2% higher than those that did not receive KNO3. These results demonstrated that KNO3 applied to the leaves induced water deficit tolerance... Mostrar Tudo |
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Palavras-Chave: |
Chlorophyll fluorescence; Drought resistance; Fluorescência da clorofila; Leaf gas exchange; Mineral nutrition; Nutrição mineral; Troca gasosa foliar; WinRhizo. |
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Thesagro: |
Resistência a Seca; Sorghum Bicolor; Sorgo. |
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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/230480/1/Foliar-application.pdf
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Marc: |
LEADER 02579naa a2200337 a 4500
001 2139292
005 2022-07-13
008 2022 bl uuuu u00u1 u #d
100 1 $aÁVILA, R. G.
245 $aFoliar application of potassium nitrate induces tolerance to water deficit in pre-flowering sorghum plants.$h[electronic resource]
260 $c2022
520 $aThe objective of this study was to evaluate the the ability of foliar application of potassium nitrate (KNO3) to induce water deficit tolerance in sorghum plants (Sorghum bicolor cv. P898012) subjected to water deficit at pre-flowering. The experiment was conducted under greenhouse conditions with 4 treatments: field capacity (FC), water deficit (WD), field capacity + KNO3 (FC + KNO3), and water deficit + KNO3 (WD + KNO3). Two foliar applications of 3% (m/v) KNO3 were made, the first on day zero of stress and the second on the fifth day. All analyses were performed after 12 days of stress (end of stress). Foliar application of KNO3 to irrigated plants led to increases in relative chlorophyll content, photosynthetic rate, stomatal conductance, transpiration, and carboxylation efficiency. It also induced increases in leaf concentrations of P, Mg, S, Cu, and Fe, in addition to height growth. Under water deficit conditions, plants treated with KNO3 presented higher relative chlorophyll content, leaf area, photosynthetic rate, stomatal conductance, transpiration, carboxylation efficiency, and higher levels of P, K, Mg, S, Cu, and Fe than those not treated with KNO3. The morphometry of the root system was not altered by the treatments. In addition, plants treated with KNO3 under water deficit conditions showed higher growth and a grain yield 32.2% higher than those that did not receive KNO3. These results demonstrated that KNO3 applied to the leaves induced water deficit tolerance in sorghum plants subjected to severe water stress at pre-flowering.
650 $aResistência a Seca
650 $aSorghum Bicolor
650 $aSorgo
653 $aChlorophyll fluorescence
653 $aDrought resistance
653 $aFluorescência da clorofila
653 $aLeaf gas exchange
653 $aMineral nutrition
653 $aNutrição mineral
653 $aTroca gasosa foliar
653 $aWinRhizo
700 1 $aMAGALHAES, P. C.
700 1 $aSILVA, E. M. da
700 1 $aALVARENGA, A. A. de
700 1 $aREIS, C. O. dos
700 1 $aCUSTÓDIO. A. M.
700 1 $aJAKELAITIS, A.
700 1 $aSOUZA, T. C. de
773 $tActa Scientiarum. Agronomy$gv. 44, n. 1, e53069, 2022.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
21/12/2021 |
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Data da última atualização: |
16/02/2022 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
ACRE (Estado). Secretaria de Estado do Meio Ambiente e das Políticas Indígenas. |
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Título: |
Zoneamento ecológico-econômico do Acre - Fase III: escala 1:250.000: documento-síntese. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Rio Branco, AC, 2021. |
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Páginas: |
161 p. |
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ISBN: |
978-85-60678-32-7 |
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Idioma: |
Português |
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Notas: |
Organização: Instituto de Pesquisa Ambiental da Amazônia (Ipam). Autores: Eugênio Pantoja/IPAM; Ane Alencar/IPAM; Francilino Monteiro e Silva/Consultor IPAM; Isabel Castro/IPAM; João Paulo Ribeiro/IPAM; Vivian Ribeiro/IPAM; Jarlene Gomes/IPAM; Gabriela Savian/IPAM; Eufran Ferreira do Amaral/Embrapa; Judson Ferreira Valentim/Embrapa; Francisco Carlos da Rocha Gomes/Embrapa; Falberni de Souza Costa/Embrapa; Idésio Luís Franke/Embrapa; José Eduardo Boffino de Almeida Monteiro/Embrapa; Nilson Gomes Bardales/Embrapa; Katia Castro de Matteo/Consultora GIZ; Vera Lucia Reis Brown/Semapi; Cláudio Roberto da Silva avalcante/Semapi; Elaine Lopes da Costa/Consultora Semapi; Antonio Willian Flores de Melo/Ufac. |
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Conteúdo: |
Este documento apresenta, de forma única, subsídio à gestão territorial e ambiental para nosso estado. Para tanto, buscou-se revisar, atualizar e incorporar temáticas que possibilitam ampliar a visão sobre espaço e território, fornecendo informações úteis para a tomada de decisões estratégicas de governo. |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Desarrollo socioeconómico; Gestão territorial; Territorial management; Uso de la tierra; Western Amazon; Zonificación. |
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Thesagro: |
Desenvolvimento Socio-Econômico; Políticas Públicas; Uso da Terra. |
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Thesaurus NAL: |
Land use; Public policy; Socioeconomic development; Zoning. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229423/1/27248.pdf
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Marc: |
LEADER 02075naa a2200349 a 4500
001 2138137
005 2022-02-16
008 2021 bl uuuu u00u1 u #d
020 $a978-85-60678-32-7
100 1 $aACRE (Estado). Secretaria de Estado do Meio Ambiente e das Políticas Indígenas.
245 $aZoneamento ecológico-econômico do Acre - Fase III$bescala 1:250.000: documento-síntese.$h[electronic resource]
260 $c2021
300 $a161 p.
500 $aOrganização: Instituto de Pesquisa Ambiental da Amazônia (Ipam). Autores: Eugênio Pantoja/IPAM; Ane Alencar/IPAM; Francilino Monteiro e Silva/Consultor IPAM; Isabel Castro/IPAM; João Paulo Ribeiro/IPAM; Vivian Ribeiro/IPAM; Jarlene Gomes/IPAM; Gabriela Savian/IPAM; Eufran Ferreira do Amaral/Embrapa; Judson Ferreira Valentim/Embrapa; Francisco Carlos da Rocha Gomes/Embrapa; Falberni de Souza Costa/Embrapa; Idésio Luís Franke/Embrapa; José Eduardo Boffino de Almeida Monteiro/Embrapa; Nilson Gomes Bardales/Embrapa; Katia Castro de Matteo/Consultora GIZ; Vera Lucia Reis Brown/Semapi; Cláudio Roberto da Silva avalcante/Semapi; Elaine Lopes da Costa/Consultora Semapi; Antonio Willian Flores de Melo/Ufac.
520 $aEste documento apresenta, de forma única, subsídio à gestão territorial e ambiental para nosso estado. Para tanto, buscou-se revisar, atualizar e incorporar temáticas que possibilitam ampliar a visão sobre espaço e território, fornecendo informações úteis para a tomada de decisões estratégicas de governo.
650 $aLand use
650 $aPublic policy
650 $aSocioeconomic development
650 $aZoning
650 $aDesenvolvimento Socio-Econômico
650 $aPolíticas Públicas
650 $aUso da Terra
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aDesarrollo socioeconómico
653 $aGestão territorial
653 $aTerritorial management
653 $aUso de la tierra
653 $aWestern Amazon
653 $aZonificación
773 $tRio Branco, AC, 2021.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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