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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
11/08/2021 |
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Data da última atualização: |
16/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FREITAS, J. C. E.; RESENDE, C. F. de; PACHECO, V. S.; GRAZUL, R. M.; MORAIS, L. E.; PASSOS, L. P.; PEIXOTO, P. H. |
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Afiliação: |
JOBER CONDÉ EVANGELISTA FREITAS, Universidade Federal de Juiz de Fora; CRISTIANO FERRARA DE RESENDE, Universidade Federal de Juiz de Fora; VINÍCIUS SACRAMENTO PACHECO, Universidade Federal de Juiz de Fora; RICHARD MICHAEL GRAZUL, Universidade Federal de Juiz de Fora; LEANDRO ELIAS MORAIS, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais; LEONIDAS PAIXAO PASSOS, CNPGL; PAULO HENRIQUE PEREIRA PEIXOTO, Universidade Federal de Juiz de Fora. |
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Título: |
Does the water regime differentially modulate the responses to water stress in Lippia alba (Verbenaceae) genotypes with different ploidy levels? |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Industrial Crops and Products, v. 160, 113137, 2021. |
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DOI: |
https://doi.org/10.1016/j.indcrop.2020.113137 |
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Idioma: |
Inglês |
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Conteúdo: |
Lippia alba (Mill.) NE Br. ex Britton & P. Wilson is an important medicinal herb widely distributed in Latin America. However, the success of this crop depends on several biotic and abiotic environmental factors, being water availability the most limiting one. Therefore, the present paper aimed to investigate the responses of one tetraploid (tet) and two diploids (dip1 and dip2) genotypes of L. alba to drought stress by using irrigation suspension under 0 (control) or 15 (stressful factor) days. The physiological parameters water content, gas exchange, chlorophyll a fluorescence, photosynthetic pigments contents, and the qualitative profile of volatile organic compounds were evaluated by uni- and multivariate statistical analyses. Drought stress negatively affected the physiological processes in all L. alba specimens equally, regardless of the genotype. It was observed that photosynthesis was impaired due to stomatal limitation, which was triggered by low water availability. In contrast, the qualitative profile of volatile organic compounds was strongly determined by genotype without drought stress influence. Furthermore, gas exchange and chlorophyll a fluorescence were the most sensitive parameters to evaluate drought stress in L. alba. More specifically stomatal conductance is recommended to be evaluated in L. alba breeding programs focused on drought stress tolerance, given that its high contribution to photosynthesis regulation. |
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Palavras-Chave: |
Estresse hídrico. |
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Thesagro: |
Deficiência Hídrica; Erva Cidreira; Fotossíntese; Planta Medicinal. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02321naa a2200265 a 4500
001 2133469
005 2021-09-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.indcrop.2020.113137$2DOI
100 1 $aFREITAS, J. C. E.
245 $aDoes the water regime differentially modulate the responses to water stress in Lippia alba (Verbenaceae) genotypes with different ploidy levels?$h[electronic resource]
260 $c2021
520 $aLippia alba (Mill.) NE Br. ex Britton & P. Wilson is an important medicinal herb widely distributed in Latin America. However, the success of this crop depends on several biotic and abiotic environmental factors, being water availability the most limiting one. Therefore, the present paper aimed to investigate the responses of one tetraploid (tet) and two diploids (dip1 and dip2) genotypes of L. alba to drought stress by using irrigation suspension under 0 (control) or 15 (stressful factor) days. The physiological parameters water content, gas exchange, chlorophyll a fluorescence, photosynthetic pigments contents, and the qualitative profile of volatile organic compounds were evaluated by uni- and multivariate statistical analyses. Drought stress negatively affected the physiological processes in all L. alba specimens equally, regardless of the genotype. It was observed that photosynthesis was impaired due to stomatal limitation, which was triggered by low water availability. In contrast, the qualitative profile of volatile organic compounds was strongly determined by genotype without drought stress influence. Furthermore, gas exchange and chlorophyll a fluorescence were the most sensitive parameters to evaluate drought stress in L. alba. More specifically stomatal conductance is recommended to be evaluated in L. alba breeding programs focused on drought stress tolerance, given that its high contribution to photosynthesis regulation.
650 $aDeficiência Hídrica
650 $aErva Cidreira
650 $aFotossíntese
650 $aPlanta Medicinal
653 $aEstresse hídrico
700 1 $aRESENDE, C. F. de
700 1 $aPACHECO, V. S.
700 1 $aGRAZUL, R. M.
700 1 $aMORAIS, L. E.
700 1 $aPASSOS, L. P.
700 1 $aPEIXOTO, P. H.
773 $tIndustrial Crops and Products$gv. 160, 113137, 2021.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
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URL |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
14/02/2022 |
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Data da última atualização: |
24/02/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GOMES, E. G.; FIDALGO, E. C. C.; OLIVEIRA, E.; MARTINS, A. L. da S.; OLIVEIRA, A. P. de; COELHO, M. R. |
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Afiliação: |
ELIANE GONCALVES GOMES, SIRE; ELAINE CRISTINA CARDOSO FIDALGO, CNPS; ELTON OLIVEIRA, UFF; ALBA LEONOR DA SILVA MARTINS, CNPS; ALINE PACOBAHYBA DE OLIVEIRA, CNPS; MAURICIO RIZZATO COELHO, CNPS. |
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Título: |
Soil evaluation and socioeconomic factors influence on agricultural efficiency: a pilot study in Rio de Janeiro. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: PEDOMETRICS BRAZIL, 2., 2021, Rio de Janeiro. Annals [...]. Rio de Janeiro: Embrapa Solos, 2022. Não paginado. Evento online. |
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Idioma: |
Inglês |
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Conteúdo: |
In this paper we evaluate the agricultural efficiency of the municipalities of the state Rio de Janeiro and assess the influence of contextual variables on the performance. The scores are computed by means of Data Envelopment Analysis (DEA) models, where inputs are land, labor and capital (or technology), and the value of crops and of livestock productions are the outputs. Covariates are related to soil evaluation (susceptibility to erosion and land use suitability) and to socioeconomic factors. The results show that high levels of susceptibility to erosion influence negatively and significantly the efficiency scores. The land suitability to agriculture and the land suitability to livestock are positively associated with performance. The presence of family-based farmers favors the agricultural performance of the assessed municipalities. |
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Palavras-Chave: |
Agricultural performance; Data envelopment analysis; Fractional regression. |
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Thesagro: |
Aptidão Agrícola; Erosão do Solo; Uso da Terra. |
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Thesaurus NAL: |
Land suitability; Land use; Soil erosion. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01790nam a2200277 a 4500
001 2140019
005 2022-02-24
008 2022 bl uuuu u01u1 u #d
100 1 $aGOMES, E. G.
245 $aSoil evaluation and socioeconomic factors influence on agricultural efficiency$ba pilot study in Rio de Janeiro.$h[electronic resource]
260 $aIn: PEDOMETRICS BRAZIL, 2., 2021, Rio de Janeiro. Annals [...]. Rio de Janeiro: Embrapa Solos, 2022. Não paginado. Evento online.$c2022
520 $aIn this paper we evaluate the agricultural efficiency of the municipalities of the state Rio de Janeiro and assess the influence of contextual variables on the performance. The scores are computed by means of Data Envelopment Analysis (DEA) models, where inputs are land, labor and capital (or technology), and the value of crops and of livestock productions are the outputs. Covariates are related to soil evaluation (susceptibility to erosion and land use suitability) and to socioeconomic factors. The results show that high levels of susceptibility to erosion influence negatively and significantly the efficiency scores. The land suitability to agriculture and the land suitability to livestock are positively associated with performance. The presence of family-based farmers favors the agricultural performance of the assessed municipalities.
650 $aLand suitability
650 $aLand use
650 $aSoil erosion
650 $aAptidão Agrícola
650 $aErosão do Solo
650 $aUso da Terra
653 $aAgricultural performance
653 $aData envelopment analysis
653 $aFractional regression
700 1 $aFIDALGO, E. C. C.
700 1 $aOLIVEIRA, E.
700 1 $aMARTINS, A. L. da S.
700 1 $aOLIVEIRA, A. P. de
700 1 $aCOELHO, M. R.
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