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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/02/2024 |
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Data da última atualização: |
03/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGUIAR, N. S. de; GABIRA, M. M.; DUARTE, M. M.; TOMASI, J. de C.; HANSEL, F. A.; LAVORANTI, O. J.; DESCHAMPS, C.; HELM, C. V.; WENDLING, I. |
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Afiliação: |
NATALIA SAUDADE DE AGUIAR, UNIVERSIDADE FEDERAL DO PARANÁ; MÔNICA MORENO GABIRA, UNIVERSIDADE FEDERAL DO PARANÁ; MANOELA MENDES DUARTE, BOLSISTA NA EMBRAPA FLORESTAS; JÉSSICA DE CÁSSIA TOMASI, UNIVERSIDADE FEDERAL DO PARANÁ; FABRICIO AUGUSTO HANSEL, CNPF; OSMIR JOSE LAVORANTI, CNPF; CICERO DESCHAMPS, UNIVERSIDADE FEDERAL DO PARANÁ; CRISTIANE VIEIRA HELM, CNPF; IVAR WENDLING, CNPF. |
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Título: |
How shading levels affect bioactive compounds in leaves of yerba mate clones. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Biochemical Systematics and Ecology, v. 113, 104796, 2024. |
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DOI: |
https://doi.org/10.1016/j.bse.2024.104796 |
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Idioma: |
Inglês |
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Conteúdo: |
Shading is one of the factors that influences the production of bioactive compounds in yerba mate leaves (Ilex paraguariensis). In this study, we simulated different shading levels in a new yerba mate cultivation system, semi-hydroponic inside a greenhouse. We evaluated how five levels of artificial shading influence on the bioactive compounds methylxanthines and caffeoylquinic acids (CQAs) in young and mature leaves of two yerba mate clones (EC22 and EC40) grown in a semi-hydroponic system over six harvests. From the aqueous extract, we determined the contents of methylxanthines and CQAs on an Ultra-Fast Liquid Chromatograph (UFLC), and the annual productivity of compounds per productive area was calculated considering leaf mass production m−2. There was a higher influence of clone and leaf type on the levels of bioactive compounds, especially methylxanthines – young leaves and EC40 clone showed higher caffeine content. The clones responded differently to shading: higher shading levels favor caffeine accumulation in the EC40 clone; and in the EC22 clone the absence of shading increased theobromine content. Despite the different effects of shading on each compound and clone, there is a reduction in the annual productivity of all bioactive compounds with increasing shading due to the low leaf mass productivity. Thus, we do not recommend shading in the yerba mate semi-hydroponic cultivation. This cultivation system guarantees high productivity of bioactive compounds, especially CQAs. Our study demonstrates yerba mate chemical potential to generate numerous products, including industrial extraction of methylxanthines and CQAs, increasing the commercial value of the species. MenosShading is one of the factors that influences the production of bioactive compounds in yerba mate leaves (Ilex paraguariensis). In this study, we simulated different shading levels in a new yerba mate cultivation system, semi-hydroponic inside a greenhouse. We evaluated how five levels of artificial shading influence on the bioactive compounds methylxanthines and caffeoylquinic acids (CQAs) in young and mature leaves of two yerba mate clones (EC22 and EC40) grown in a semi-hydroponic system over six harvests. From the aqueous extract, we determined the contents of methylxanthines and CQAs on an Ultra-Fast Liquid Chromatograph (UFLC), and the annual productivity of compounds per productive area was calculated considering leaf mass production m−2. There was a higher influence of clone and leaf type on the levels of bioactive compounds, especially methylxanthines – young leaves and EC40 clone showed higher caffeine content. The clones responded differently to shading: higher shading levels favor caffeine accumulation in the EC40 clone; and in the EC22 clone the absence of shading increased theobromine content. Despite the different effects of shading on each compound and clone, there is a reduction in the annual productivity of all bioactive compounds with increasing shading due to the low leaf mass productivity. Thus, we do not recommend shading in the yerba mate semi-hydroponic cultivation. This cultivation system guarantees high productivity of bioactive compounds, especiall... Mostrar Tudo |
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Palavras-Chave: |
Ácidos cafeoilquínicos; Caffeoylquinic acids; Incidência de luz; Light incidence; Metabólitos secundários; Methylxanthines; Metilxantinas. |
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Thesagro: |
Clone; Ilex Paraguariensis. |
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Thesaurus Nal: |
Clones; Secondary metabolites. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02762naa a2200361 a 4500
001 2162089
005 2024-05-03
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.bse.2024.104796$2DOI
100 1 $aAGUIAR, N. S. de
245 $aHow shading levels affect bioactive compounds in leaves of yerba mate clones.$h[electronic resource]
260 $c2024
520 $aShading is one of the factors that influences the production of bioactive compounds in yerba mate leaves (Ilex paraguariensis). In this study, we simulated different shading levels in a new yerba mate cultivation system, semi-hydroponic inside a greenhouse. We evaluated how five levels of artificial shading influence on the bioactive compounds methylxanthines and caffeoylquinic acids (CQAs) in young and mature leaves of two yerba mate clones (EC22 and EC40) grown in a semi-hydroponic system over six harvests. From the aqueous extract, we determined the contents of methylxanthines and CQAs on an Ultra-Fast Liquid Chromatograph (UFLC), and the annual productivity of compounds per productive area was calculated considering leaf mass production m−2. There was a higher influence of clone and leaf type on the levels of bioactive compounds, especially methylxanthines – young leaves and EC40 clone showed higher caffeine content. The clones responded differently to shading: higher shading levels favor caffeine accumulation in the EC40 clone; and in the EC22 clone the absence of shading increased theobromine content. Despite the different effects of shading on each compound and clone, there is a reduction in the annual productivity of all bioactive compounds with increasing shading due to the low leaf mass productivity. Thus, we do not recommend shading in the yerba mate semi-hydroponic cultivation. This cultivation system guarantees high productivity of bioactive compounds, especially CQAs. Our study demonstrates yerba mate chemical potential to generate numerous products, including industrial extraction of methylxanthines and CQAs, increasing the commercial value of the species.
650 $aClones
650 $aSecondary metabolites
650 $aClone
650 $aIlex Paraguariensis
653 $aÁcidos cafeoilquínicos
653 $aCaffeoylquinic acids
653 $aIncidência de luz
653 $aLight incidence
653 $aMetabólitos secundários
653 $aMethylxanthines
653 $aMetilxantinas
700 1 $aGABIRA, M. M.
700 1 $aDUARTE, M. M.
700 1 $aTOMASI, J. de C.
700 1 $aHANSEL, F. A.
700 1 $aLAVORANTI, O. J.
700 1 $aDESCHAMPS, C.
700 1 $aHELM, C. V.
700 1 $aWENDLING, I.
773 $tBiochemical Systematics and Ecology$gv. 113, 104796, 2024.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Mandioca e Fruticultura. |
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Data corrente: |
15/01/2024 |
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Data da última atualização: |
16/01/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SOUZA, K. X. S. de; TERNES, S.; CAMARGO NETO, J.; SANTOS, T. T.; MOREIRA, A. S.; KOENIGKAN, L. V.; SOUZA, R. de. |
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Afiliação: |
KLEBER XAVIER SAMPAIO DE SOUZA, CNPTIA; SONIA TERNES, CNPTIA; JOAO CAMARGO NETO, CNPTIA; THIAGO TEIXEIRA SANTOS, CNPTIA; ALECIO SOUZA MOREIRA, CNPMF; LUCIANO VIEIRA KOENIGKAN, CNPTIA; ROBERTA DE SOUZA. |
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Título: |
Evaluating multiple regressors for the yield of orange orchards. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 14., 2023, Natal. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2023. p. 262-269. |
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ISSN: |
2177-9724 |
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DOI: |
https://doi.org/10.5753/sbiagro.2023.26567 |
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Idioma: |
Inglês |
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Notas: |
SBIAgro 2023. |
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Conteúdo: |
In this paper, we assess the effectiveness of various machine learning regressors for yield forecasting based on fruit detection in images captured within the orchard |
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Palavras-Chave: |
Automatic fruit identification; Identificação automática de frutas; Visão computacional. |
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Thesagro: |
Laranja. |
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Thesaurus NAL: |
Computer vision; Image analysis; Oranges. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160827/1/AA-Evaluating-multiple-SBIAgro-2023.pdf
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Marc: |
LEADER 01165nam a2200301 a 4500
001 2160827
005 2024-01-16
008 2023 bl uuuu u00u1 u #d
022 $a2177-9724
024 7 $ahttps://doi.org/10.5753/sbiagro.2023.26567$2DOI
100 1 $aSOUZA, K. X. S. de
245 $aEvaluating multiple regressors for the yield of orange orchards.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 14., 2023, Natal. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2023. p. 262-269.$c2023
500 $aSBIAgro 2023.
520 $aIn this paper, we assess the effectiveness of various machine learning regressors for yield forecasting based on fruit detection in images captured within the orchard
650 $aComputer vision
650 $aImage analysis
650 $aOranges
650 $aLaranja
653 $aAutomatic fruit identification
653 $aIdentificação automática de frutas
653 $aVisão computacional
700 1 $aTERNES, S.
700 1 $aCAMARGO NETO, J.
700 1 $aSANTOS, T. T.
700 1 $aMOREIRA, A. S.
700 1 $aKOENIGKAN, L. V.
700 1 $aSOUZA, R. de
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