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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
21/10/2021 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBOLDI, L. B.; DIAS, R. Z.; CASTRO, P. R. de C e; FREITAS, S. T. de. |
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Afiliação: |
LUCAS BAIOCHI RIBOLDI, ESALQ; RAFAELLA ZANETTI DIAS, ESALQ; PAULO ROBERTO DE CAMARGO E CASTRO, ESALQ; SERGIO TONETTO DE FREITAS, CPATSA. |
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Título: |
2,4-Epibrassinolide mechanisms regulating water use efciency and fruit production in tomato plants. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Brazilian Journal of Botany, v. 44, p. 617-627, 2021. |
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DOI: |
https://doi.org/10.1007/s40415-021-00745-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Tomato (Solanum lycopersicum L.) plants are able to adapt to restrictive environmental conditions mainly due to hormones such as brassinosteroids (BRs) that play important roles in determining stomata conductance and leaf transpiration. However, BRs efects on morphological traits like stomata and trichome position, size, and density, as well as on physiological traits resulting in better plant water use efciency (WUE) and productivity, remain poorly understood. The objective of this study was to better understand the 2,4-epibrassinolide (EBL) mechanisms regulating leaf transpiration and WUE that can afect fruit production in tomato plants. According to results, treating tomato plants with exogenous EBL resulted in lower leaf transpiration, mainly from 9 to 16 h during the day, as well as lower stomata conductance and aperture, higher leaf water potential, higher net CO2 assimilation rate, higher number of stomata and trichome on leaf abaxial and adaxial surfaces, and higher plant dry mass accumulation, which improved plant WUE, compared to non-treated plants. EBL treatment also increased fruit size, fruit production per plant, and fruit quality traits such as higher dry mass and soluble solids content. In conclusion, BRs can improve plant adaptation to water stress conditions by regulating important physiological and morphological mechanisms, controlling plant WUE, and leading to higher fruit production. |
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Palavras-Chave: |
Área de abertura estomática; Assimilação de carbono; Densidade estomática; Tamanho do fruto; Turgor da folha; Uso da agua. |
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Thesagro: |
Carbono; Tomate. |
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Thesaurus Nal: |
Brassinosteroids; Solanum lycopersicum; Tomatoes. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02350naa a2200301 a 4500
001 2135474
005 2024-02-06
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s40415-021-00745-5$2DOI
100 1 $aRIBOLDI, L. B.
245 $a2,4-Epibrassinolide mechanisms regulating water use efciency and fruit production in tomato plants.$h[electronic resource]
260 $c2021
520 $aTomato (Solanum lycopersicum L.) plants are able to adapt to restrictive environmental conditions mainly due to hormones such as brassinosteroids (BRs) that play important roles in determining stomata conductance and leaf transpiration. However, BRs efects on morphological traits like stomata and trichome position, size, and density, as well as on physiological traits resulting in better plant water use efciency (WUE) and productivity, remain poorly understood. The objective of this study was to better understand the 2,4-epibrassinolide (EBL) mechanisms regulating leaf transpiration and WUE that can afect fruit production in tomato plants. According to results, treating tomato plants with exogenous EBL resulted in lower leaf transpiration, mainly from 9 to 16 h during the day, as well as lower stomata conductance and aperture, higher leaf water potential, higher net CO2 assimilation rate, higher number of stomata and trichome on leaf abaxial and adaxial surfaces, and higher plant dry mass accumulation, which improved plant WUE, compared to non-treated plants. EBL treatment also increased fruit size, fruit production per plant, and fruit quality traits such as higher dry mass and soluble solids content. In conclusion, BRs can improve plant adaptation to water stress conditions by regulating important physiological and morphological mechanisms, controlling plant WUE, and leading to higher fruit production.
650 $aBrassinosteroids
650 $aSolanum lycopersicum
650 $aTomatoes
650 $aCarbono
650 $aTomate
653 $aÁrea de abertura estomática
653 $aAssimilação de carbono
653 $aDensidade estomática
653 $aTamanho do fruto
653 $aTurgor da folha
653 $aUso da agua
700 1 $aDIAS, R. Z.
700 1 $aCASTRO, P. R. de C e
700 1 $aFREITAS, S. T. de
773 $tBrazilian Journal of Botany$gv. 44, p. 617-627, 2021.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Registro |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
01/02/2018 |
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Data da última atualização: |
01/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
CARVALHO, J. C. B. de; ESPINDOLA, C. R.; ALVES, M. C.; GREGO, C. R.; VIEIRA, S. R. |
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Afiliação: |
JOSEANE CARINA BORGES DE CARVALHO, Secretaria da Educação do Estado de São Paulo; CARLOS ROBERTO ESPINDOLA, IG/Unicamp; MARLENE CRISTINA ALVES, Unesp; CELIA REGINA GREGO, CNPTIA; SIDNEY ROSA VIEIRA. |
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Título: |
Spatial analysis of soil physical attributes from a degraded area under different types of management. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
African Journal of Environmental Science and Technology, v. 11, n. 9, p. 486-498, Sept. 2017. |
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DOI: |
10.5897/AJEST2016.2256 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to analyze the spatial variability of soil aggregates, porosity and density under five different land-uses and management conditions (degraded substrate - SD; degraded substrate with sewage sludge and Eucalyptus crop - SDLE; soil under pasture SP; capoeira under regeneration - SR; and soil under cerrado - SC). Total porosity (m3.m-3) and density (Mg m-3) of the soil; the mean weight diameter (MWD, mm) of the aggregates; and the percentage of aggregates resistant to rainfall were evaluated. The date of soil was analyzed with descriptive statistics for initial exploration and geostatistics, to analyze the spatial variability. There was spatial dependency and the parameter adjust range varied from 8 to 12 m under the treatments SD and SR for the aggregates and SR for macroporosity, total porosity and soil density. There was spatial dependency also under SP, for the aggregates, microporosity, and total porosity; under SC, for the aggregates; and under SDLE, for microporosity. Soil data with spatial dependence in the field were characterized both by high and low values in the same area. Therefore it is not adequate to consider these areas as homogeneous for future experiments and agricultural activities. |
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Palavras-Chave: |
Análise espacial; Geoestatística; Spatial variability. |
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Thesaurus NAL: |
Geostatistics; Soil aggregates. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172002/1/AP-Spatial-analysis-Grego-etal.pdf
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Marc: |
LEADER 02028naa a2200241 a 4500
001 2086890
005 2018-02-01
008 2017 bl uuuu u00u1 u #d
024 7 $a10.5897/AJEST2016.2256$2DOI
100 1 $aCARVALHO, J. C. B. de
245 $aSpatial analysis of soil physical attributes from a degraded area under different types of management.$h[electronic resource]
260 $c2017
520 $aThe objective of this work was to analyze the spatial variability of soil aggregates, porosity and density under five different land-uses and management conditions (degraded substrate - SD; degraded substrate with sewage sludge and Eucalyptus crop - SDLE; soil under pasture SP; capoeira under regeneration - SR; and soil under cerrado - SC). Total porosity (m3.m-3) and density (Mg m-3) of the soil; the mean weight diameter (MWD, mm) of the aggregates; and the percentage of aggregates resistant to rainfall were evaluated. The date of soil was analyzed with descriptive statistics for initial exploration and geostatistics, to analyze the spatial variability. There was spatial dependency and the parameter adjust range varied from 8 to 12 m under the treatments SD and SR for the aggregates and SR for macroporosity, total porosity and soil density. There was spatial dependency also under SP, for the aggregates, microporosity, and total porosity; under SC, for the aggregates; and under SDLE, for microporosity. Soil data with spatial dependence in the field were characterized both by high and low values in the same area. Therefore it is not adequate to consider these areas as homogeneous for future experiments and agricultural activities.
650 $aGeostatistics
650 $aSoil aggregates
653 $aAnálise espacial
653 $aGeoestatística
653 $aSpatial variability
700 1 $aESPINDOLA, C. R.
700 1 $aALVES, M. C.
700 1 $aGREGO, C. R.
700 1 $aVIEIRA, S. R.
773 $tAfrican Journal of Environmental Science and Technology$gv. 11, n. 9, p. 486-498, Sept. 2017.
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Embrapa Agricultura Digital (CNPTIA) |
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