|
|
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
|
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
20/03/2008 |
Data da última atualização: |
16/07/2009 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
MARTINS, E. S.; REATTO, A.; SILVA, E. M.; SANO, E. E.; CARDOSO, A.; PARRON, L.; MADEIRA NETTO, J. S.; RODRIGUES, L. M. R.; CARVALHO, A. M.; MENDES, I. C.; ANDRADE, L. M.; MEIRELLES, M. L.; VILELA, L.; BEZERRA, H. S.; WERNECK, N.; BECQUER, T.; MITJA, D.; BROSSARD, M.; BRUNET, D.; CARVALHO JÚNIOR, O. A.; GUIMARÃES, R. F.; BUSTAMANTE, M.; FERREIRA, L. G.; FERREIRA, M. E.; HUETE, A.; MIURA, T.; NACIF, P. G. S.; BALBINO, L. C.; GUIMARÃES, M. F.; PASINI, A.; AQUINO, A.; COOPER, M.; MURAOKA, T.; ZEEP, R.; BURKE, R.; KISSELLE, K. |
Afiliação: |
Éder Souza Martins, CPAC; Adriana Reatto, CPAC; Euzébio Medrado Silva, CPAC; Edson Eyji Sano, CPAC; A. Cardoso; Lucília Parron, CPAC; J. S. Madeira Netto; L. M. R. Rodrigues; Arminda Moreira Carvalho, CPAC; Iêda Carvalho Mendes, CPAC; L. M. Andrade; Maria Lúcia Meirelles, CPAC; Lourival Vilela, CPAC; Heleno Silva Bezerra, CPAC; Nirceu Werneck, CPAC; T. Becquer; D. Mitja; M. Brossard; D. Brunet; O. A. Carvalho Júnior; R. F. Guimarães; M. Bustamante; L. G. Ferreira; M. E. Ferreira; A. Huete; T. Miura; P. G. S. Nacif; L. C. Balbino; M. F. Guimarães; A. Pasini; A. Aquino; M. Cooper; T. Muraoka; R. Zeep; R. Burke; K. Kisselle. |
Título: |
Funcionamento de solos do Cerrado em diversas escalas: componentes ambientais, implicações agronômicas e ecológicas. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: ANDRADE, S. R. M. de; FALEIRO, F. G.; SERENO, J. R.; DALLA CORTE, J. L.; SOUSA, E. dos S. de (Ed.). Resultados de pesquisa para o Cerrado: 2004-2005. Planaltina, DF: Embrapa Cerrados, 2007. |
Páginas: |
p. 83-88. |
Idioma: |
Português |
Thesagro: |
Cerrado; Solo. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2010/28604/1/relat-01.pdf
|
Marc: |
LEADER 01611nam a2200553 a 4500 001 1571873 005 2009-07-16 008 2007 bl uuuu u00u1 u #d 100 1 $aMARTINS, E. S. 245 $aFuncionamento de solos do Cerrado em diversas escalas$bcomponentes ambientais, implicações agronômicas e ecológicas. 260 $aIn: ANDRADE, S. R. M. de; FALEIRO, F. G.; SERENO, J. R.; DALLA CORTE, J. L.; SOUSA, E. dos S. de (Ed.). Resultados de pesquisa para o Cerrado: 2004-2005. Planaltina, DF: Embrapa Cerrados$c2007 300 $ap. 83-88. 650 $aCerrado 650 $aSolo 700 1 $aREATTO, A. 700 1 $aSILVA, E. M. 700 1 $aSANO, E. E. 700 1 $aCARDOSO, A. 700 1 $aPARRON, L. 700 1 $aMADEIRA NETTO, J. S. 700 1 $aRODRIGUES, L. M. R. 700 1 $aCARVALHO, A. M. 700 1 $aMENDES, I. C. 700 1 $aANDRADE, L. M. 700 1 $aMEIRELLES, M. L. 700 1 $aVILELA, L. 700 1 $aBEZERRA, H. S. 700 1 $aWERNECK, N. 700 1 $aBECQUER, T. 700 1 $aMITJA, D. 700 1 $aBROSSARD, M. 700 1 $aBRUNET, D. 700 1 $aCARVALHO JÚNIOR, O. A. 700 1 $aGUIMARÃES, R. F. 700 1 $aBUSTAMANTE, M. 700 1 $aFERREIRA, L. G. 700 1 $aFERREIRA, M. E. 700 1 $aHUETE, A. 700 1 $aMIURA, T. 700 1 $aNACIF, P. G. S. 700 1 $aBALBINO, L. C. 700 1 $aGUIMARÃES, M. F. 700 1 $aPASINI, A. 700 1 $aAQUINO, A. 700 1 $aCOOPER, M. 700 1 $aMURAOKA, T. 700 1 $aZEEP, R. 700 1 $aBURKE, R. 700 1 $aKISSELLE, K.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Cerrados (CPAC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|