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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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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
13/08/2001 |
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Data da última atualização: |
27/09/2004 |
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Autoria: |
FELICIO, J. C.; CAMARGO, C. E. de O.; PIZZINATTO, A.; CASTRO, J. L. de; GALLO, P. B. |
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Título: |
Comportamento Agronomico e Avaliacao Tecnologica de Genotipos de Triticale no Estado de Sao Paulo em 1988 a 1989. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.28, n.3, p.281-294,mar.1993 |
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Idioma: |
Português |
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Conteúdo: |
Compararam-se entre si vinte e tres cultivares de triticale e duas cultivares de trigo, em diferentes localidades do estado de Sao Paulo em 1988 e 89. Analisou-se a produtividade de graos, o peso hectolItrico (PH), o peso de mil sementes (PMS), e a correlacao simples entre esses parametros. Foram avaliadas a resistencia as doenças e as qualidades de panificacao das cultivares mais produtivas. As cultivares de triticale Nutria 440, Tarasca 87, Nutria 7272 e IAC 1 apresentaram ampla adaptacao regional. Na determinacao do PH destacou-se a cv. de trigo IAC 21, diferindo das demais cultivares; quanto ao PMS, a cv. IAC 21, nao diferiu das cvs. de triticale Nutria 440, Nutria 7272, IAC 60 (trigo) e IAC 1. As cultivares de triticale Nutria 440, Tarasca 87, ICT 8804, Cananea 79, ICT 8709 e ICT 8801 exibiram boa resistencia a ferrugem-da-folha. Todas as cultivares estudadas apresentaram suscetibilidade a helmintosporiose. Na avaliacao tecnológica, destacou-se a cv. ICT 8803, apresentando volume especifico de 17,7% superior ao do pao da cv. de trigo IAC 60, considerada testemunha. |
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Palavras-Chave: |
000 sementes; peso de 1; peso hectolitrico; Produtividade de graos; reacoes as doencas; teste de qualidade do pao. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/20494/1/pab93_02_mar.pdf
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Marc: |
LEADER 01834naa a2200241 a 4500
001 1105396
005 2004-09-27
008 1993 bl uuuu u00u1 u #d
100 1 $aFELICIO, J. C.
245 $aComportamento Agronomico e Avaliacao Tecnologica de Genotipos de Triticale no Estado de Sao Paulo em 1988 a 1989.
260 $c1993
520 $aCompararam-se entre si vinte e tres cultivares de triticale e duas cultivares de trigo, em diferentes localidades do estado de Sao Paulo em 1988 e 89. Analisou-se a produtividade de graos, o peso hectolItrico (PH), o peso de mil sementes (PMS), e a correlacao simples entre esses parametros. Foram avaliadas a resistencia as doenças e as qualidades de panificacao das cultivares mais produtivas. As cultivares de triticale Nutria 440, Tarasca 87, Nutria 7272 e IAC 1 apresentaram ampla adaptacao regional. Na determinacao do PH destacou-se a cv. de trigo IAC 21, diferindo das demais cultivares; quanto ao PMS, a cv. IAC 21, nao diferiu das cvs. de triticale Nutria 440, Nutria 7272, IAC 60 (trigo) e IAC 1. As cultivares de triticale Nutria 440, Tarasca 87, ICT 8804, Cananea 79, ICT 8709 e ICT 8801 exibiram boa resistencia a ferrugem-da-folha. Todas as cultivares estudadas apresentaram suscetibilidade a helmintosporiose. Na avaliacao tecnológica, destacou-se a cv. ICT 8803, apresentando volume especifico de 17,7% superior ao do pao da cv. de trigo IAC 60, considerada testemunha.
653 $a000 sementes
653 $apeso de 1
653 $apeso hectolitrico
653 $aProdutividade de graos
653 $areacoes as doencas
653 $ateste de qualidade do pao
700 1 $aCAMARGO, C. E. de O.
700 1 $aPIZZINATTO, A.
700 1 $aCASTRO, J. L. de
700 1 $aGALLO, P. B.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.28, n.3, p.281-294,mar.1993
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Embrapa Unidades Centrais (AI-SEDE) |
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