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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 |
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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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Acre; Embrapa Agroindústria de Alimentos. |
Data corrente: |
21/09/2022 |
Data da última atualização: |
29/08/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
FAZOLIN, M.; MONTEIRO, A. F. M.; BIZZO, H. R.; GAMA, P. E.; VIANA, L. de O.; LIMA, M. E. C. de. |
Afiliação: |
MURILO FAZOLIN, CPAF-AC; ANDRE FABIO MEDEIROS MONTEIRO, CPAF-AC; HUMBERTO RIBEIRO BIZZO, CTAA; PAOLA ERVATTI GAMA, CTAA; LUANA DE OLIVEIRA VIANA, FACULDADE META; MARIA ÉRICA COSTA DE LIMA, UNIVERSIDADE FEDERAL DO ACRE. |
Título: |
Insecticidal activity of Piper aduncum oil: variation in dillapiole content and chemical and toxicological stability during storage. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Acta Amazonica, v. 52, n. 3, p. 179-188, 2022. |
ISSN: |
1809-4392 (online) / 0044-5967 (impresso) |
DOI: |
http://dx.doi.org/10.1590/1809-4392202102292 |
Idioma: |
Inglês |
Conteúdo: |
The insecticidal effect of the essential oil of Piper aduncum (EOPA), and of its constituent dillapiole [1-allyl-2,3-dimethoxy-4,5-(methylenedioxy) benzene] in particular, is well documented in the literature and can be associated with its interference with the enzymatic detoxification in arthropods. However, no data exist on the range of dillapiole content associated with insecticidal activity, which is necessary to establish reliable dose-activity parameters for a formulated product. The oil composition can also change during storage after distillation, mainly due to environmental factors such as light incidence, atmospheric oxygen and temperature, which can be deleterious to oil quality. In this study, EOPA subjected to different storage conditions over four years and its rectified fractions were submitted to bioassays to evaluate their insecticidal effect by topical contact and residual contact against Spodoptera frugiperda. Our objectives were to determine the relationship between dillapiole content and the insecticidal activity of EOPA, and to evaluate its chemical and toxicological properties over time under different conditions. Our results showed that EOPA was stable with respect to the dillapiole content and the toxicological effect against S. frugiperda under different storage conditions for four years. The overall chemical composition of the EOPA did not vary significantly among storage conditions. EOPA with dillapiole content ranging between 68% and 100% showed greater insecticidal toxicity by residual and topical contact against S. frugiperda larvae.
O efeito inseticida do óleo essencial de Piper aduncum (OEPA) e, particularmente, de seu constituinte dilapiol [1-alil-2,3-dimetoxi-4,5-(metilenodioxi) benzeno], está bem documentado na literatura e pode estar associado à sua interferência na desintoxicação enzimática em artrópodes. No entanto, não existem dados sobre a amplitude de teores de dilapiol associados à atividade inseticida, o que é necessário para estabelecer parâmetros de dose-atividade confiáveis para um produto formulado. A composição do óleo também pode sofrer alterações durante seu armazenamento após a destilação, principalmente devido a fatores ambientais como incidência de luz, oxigênio atmosférico e temperatura, que podem ser deletérios à qualidade do óleo. Neste estudo, durante quatro anos, OEPA submetido a diferentes condições de armazenamento e suas frações retificadas foram submetidos a bioensaios para avaliar seu efeito inseticida por contato tópico e contato residual contra Spodoptera frugiperda. Nossos objetivos foram determinar a relação entre o teor de dilapiol e a atividade inseticida do OEPA, e avaliar suas propriedades químicas e toxicológicas ao longo do tempo sob diferentes condições. Nossos resultados mostraram que o OEPA foi estável em relação ao teor de dilapiol e o efeito toxicológico contra S. frugiperda sob diferentes condições de armazenamento durante quatro anos. A composição química do OEPA não variou significativamente entre as condições de armazenamento. OEPA com teor de dilapiol entre 68% e 100% apresentou maior toxicidade inseticida por contato residual e tópico contra larvas de S. frugiperda. MenosThe insecticidal effect of the essential oil of Piper aduncum (EOPA), and of its constituent dillapiole [1-allyl-2,3-dimethoxy-4,5-(methylenedioxy) benzene] in particular, is well documented in the literature and can be associated with its interference with the enzymatic detoxification in arthropods. However, no data exist on the range of dillapiole content associated with insecticidal activity, which is necessary to establish reliable dose-activity parameters for a formulated product. The oil composition can also change during storage after distillation, mainly due to environmental factors such as light incidence, atmospheric oxygen and temperature, which can be deleterious to oil quality. In this study, EOPA subjected to different storage conditions over four years and its rectified fractions were submitted to bioassays to evaluate their insecticidal effect by topical contact and residual contact against Spodoptera frugiperda. Our objectives were to determine the relationship between dillapiole content and the insecticidal activity of EOPA, and to evaluate its chemical and toxicological properties over time under different conditions. Our results showed that EOPA was stable with respect to the dillapiole content and the toxicological effect against S. frugiperda under different storage conditions for four years. The overall chemical composition of the EOPA did not vary significantly among storage conditions. EOPA with dillapiole content ranging between 68% and 100% showed ... Mostrar Tudo |
Palavras-Chave: |
1-alil-2 3-dimetoxi-4 5-(metilenodioxi) benzeno; 1-allyl-2 3- dimethoxy-4 5-(methylenedioxy) benzene; Aceites esenciales; Acre; Amazonia Occidental; Amazônia Ocidental; Condiciones de almacenamiento; Dilapiol; Efectos residuales; Embrapa Acre; Estabilidade química; Fall armyworm; Insecticidas botánicos; Lagarta do cartucho; Rio Branco (AC); Terpenóide; Terpenoidos; Western Amazon. |
Thesagro: |
Armazenamento; Efeito Residual; Inseticida de Origem Vegetal; Lagarta Militar; Óleo Essencial; Pimenta de Macaco; Spodoptera Frugiperda. |
Thesaurus NAL: |
Botanical insecticides; Chemical equilibrium; Essential oils; Piper aduncum; Residual effects; Storage conditions; Terpenoids. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146692/1/27366.pdf
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Marc: |
LEADER 05101naa a2200589 a 4500 001 2146692 005 2023-08-29 008 2022 bl uuuu u00u1 u #d 022 $a1809-4392 (online) / 0044-5967 (impresso) 024 7 $ahttp://dx.doi.org/10.1590/1809-4392202102292$2DOI 100 1 $aFAZOLIN, M. 245 $aInsecticidal activity of Piper aduncum oil$bvariation in dillapiole content and chemical and toxicological stability during storage.$h[electronic resource] 260 $c2022 520 $aThe insecticidal effect of the essential oil of Piper aduncum (EOPA), and of its constituent dillapiole [1-allyl-2,3-dimethoxy-4,5-(methylenedioxy) benzene] in particular, is well documented in the literature and can be associated with its interference with the enzymatic detoxification in arthropods. However, no data exist on the range of dillapiole content associated with insecticidal activity, which is necessary to establish reliable dose-activity parameters for a formulated product. The oil composition can also change during storage after distillation, mainly due to environmental factors such as light incidence, atmospheric oxygen and temperature, which can be deleterious to oil quality. In this study, EOPA subjected to different storage conditions over four years and its rectified fractions were submitted to bioassays to evaluate their insecticidal effect by topical contact and residual contact against Spodoptera frugiperda. Our objectives were to determine the relationship between dillapiole content and the insecticidal activity of EOPA, and to evaluate its chemical and toxicological properties over time under different conditions. Our results showed that EOPA was stable with respect to the dillapiole content and the toxicological effect against S. frugiperda under different storage conditions for four years. The overall chemical composition of the EOPA did not vary significantly among storage conditions. EOPA with dillapiole content ranging between 68% and 100% showed greater insecticidal toxicity by residual and topical contact against S. frugiperda larvae. O efeito inseticida do óleo essencial de Piper aduncum (OEPA) e, particularmente, de seu constituinte dilapiol [1-alil-2,3-dimetoxi-4,5-(metilenodioxi) benzeno], está bem documentado na literatura e pode estar associado à sua interferência na desintoxicação enzimática em artrópodes. No entanto, não existem dados sobre a amplitude de teores de dilapiol associados à atividade inseticida, o que é necessário para estabelecer parâmetros de dose-atividade confiáveis para um produto formulado. A composição do óleo também pode sofrer alterações durante seu armazenamento após a destilação, principalmente devido a fatores ambientais como incidência de luz, oxigênio atmosférico e temperatura, que podem ser deletérios à qualidade do óleo. Neste estudo, durante quatro anos, OEPA submetido a diferentes condições de armazenamento e suas frações retificadas foram submetidos a bioensaios para avaliar seu efeito inseticida por contato tópico e contato residual contra Spodoptera frugiperda. Nossos objetivos foram determinar a relação entre o teor de dilapiol e a atividade inseticida do OEPA, e avaliar suas propriedades químicas e toxicológicas ao longo do tempo sob diferentes condições. Nossos resultados mostraram que o OEPA foi estável em relação ao teor de dilapiol e o efeito toxicológico contra S. frugiperda sob diferentes condições de armazenamento durante quatro anos. A composição química do OEPA não variou significativamente entre as condições de armazenamento. OEPA com teor de dilapiol entre 68% e 100% apresentou maior toxicidade inseticida por contato residual e tópico contra larvas de S. frugiperda. 650 $aBotanical insecticides 650 $aChemical equilibrium 650 $aEssential oils 650 $aPiper aduncum 650 $aResidual effects 650 $aStorage conditions 650 $aTerpenoids 650 $aArmazenamento 650 $aEfeito Residual 650 $aInseticida de Origem Vegetal 650 $aLagarta Militar 650 $aÓleo Essencial 650 $aPimenta de Macaco 650 $aSpodoptera Frugiperda 653 $a1-alil-2 3-dimetoxi-4 5-(metilenodioxi) benzeno 653 $a1-allyl-2 3- dimethoxy-4 5-(methylenedioxy) benzene 653 $aAceites esenciales 653 $aAcre 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aCondiciones de almacenamiento 653 $aDilapiol 653 $aEfectos residuales 653 $aEmbrapa Acre 653 $aEstabilidade química 653 $aFall armyworm 653 $aInsecticidas botánicos 653 $aLagarta do cartucho 653 $aRio Branco (AC) 653 $aTerpenóide 653 $aTerpenoidos 653 $aWestern Amazon 700 1 $aMONTEIRO, A. F. M. 700 1 $aBIZZO, H. R. 700 1 $aGAMA, P. E. 700 1 $aVIANA, L. de O. 700 1 $aLIMA, M. E. C. de 773 $tActa Amazonica$gv. 52, n. 3, p. 179-188, 2022.
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