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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Solos. |
Data corrente: |
01/12/2014 |
Data da última atualização: |
04/02/2015 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ENCINAS, O. C.; TEIXEIRA, W. G.; LIMA, W. A. A. |
Afiliação: |
O. C. ENCINAS, UFAM; WENCESLAU GERALDES TEIXEIRA, CNPS; WANDERLEI ANTONIO ALVES DE LIMA, CPAA. |
Título: |
pH e condutividade elétrica da solução do solo em dendezais e floresta primária da Amazônia brasileira. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: trabajos. Cusco: Sociedad Latinoamericana de la Ciencia del Suelo, 2014. |
Idioma: |
Português |
Conteúdo: |
O estudo da solução do solo está relacionado ao fato de que as plantas, predominantemente, absorvem os nutrientes que estão na solução do solo, além de fornecer indicadores de fertilidade e do potencial de hidrogênio (pH). Com o objetivo de avaliar a dinâmica do pH e da condutividade elétrica da solução do solo em dendezais e na floresta primária, foi instalado um experimento no Campo experimental do Rio Urubu (CERU), município de Rio Preto da Eva, Estado do Amazonas, Brasil. |
Palavras-Chave: |
Dinâmica de nutrientes. |
Thesagro: |
Dendê; Lixiviação. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/117221/1/pH-e-condutividade.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/112641/1/C1-Omar-Cubas-Encinas-R-extendido.pdf
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Marc: |
LEADER 01239nam a2200169 a 4500 001 2007657 005 2015-02-04 008 2014 bl uuuu u00u1 u #d 100 1 $aENCINAS, O. C. 245 $apH e condutividade elétrica da solução do solo em dendezais e floresta primária da Amazônia brasileira.$h[electronic resource] 260 $aIn: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: trabajos. Cusco: Sociedad Latinoamericana de la Ciencia del Suelo$c2014 520 $aO estudo da solução do solo está relacionado ao fato de que as plantas, predominantemente, absorvem os nutrientes que estão na solução do solo, além de fornecer indicadores de fertilidade e do potencial de hidrogênio (pH). Com o objetivo de avaliar a dinâmica do pH e da condutividade elétrica da solução do solo em dendezais e na floresta primária, foi instalado um experimento no Campo experimental do Rio Urubu (CERU), município de Rio Preto da Eva, Estado do Amazonas, Brasil. 650 $aDendê 650 $aLixiviação 653 $aDinâmica de nutrientes 700 1 $aTEIXEIRA, W. G. 700 1 $aLIMA, W. A. A.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
25/01/2022 |
Data da última atualização: |
13/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
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. |
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. |
Título: |
Foliar application of potassium nitrate induces tolerance to water deficit in pre-flowering sorghum plants. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 44, n. 1, e53069, 2022. |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Chlorophyll fluorescence; Drought resistance; Fluorescência da clorofila; Leaf gas exchange; Mineral nutrition; Nutrição mineral; Troca gasosa foliar; WinRhizo. |
Thesagro: |
Resistência a Seca; Sorghum Bicolor; Sorgo. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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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