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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
03/07/2023 |
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Data da última atualização: |
03/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA JUNIOR, R. A.; RUSCHEL, A. R.; COSTA, D. C. L.; PEREIRA, D. C. P.; SILVA, U. S. da C. |
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Afiliação: |
RODRIGO ANTONIO PEREIRA JUNIOR, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; ADEMIR ROBERTO RUSCHEL, CPATU; DENIS CARLOS LIMA COSTA, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO PARÁ; DENNYS CHRYSTIAN PINTO PEREIRA, INSTITUTO BRASILEIRO DO MEIO AMBIENTE E DOS RECURSOS NATURAIS RENOVÁVEIS; ULISSES SIDNEI DA CONCEIÇÃO SILVA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ. |
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Título: |
Diameter distribution of Vouacapoua americana Aublet in the Brazilian Amazon. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 15, n. 2, p. 82-95, 2023. |
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DOI: |
https://doi.org/10.5539/jas.v15n2p82 |
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Idioma: |
Inglês |
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Conteúdo: |
Vouacapoua americana Aublet was classified as endangered in 2013 and its extraction banned in 2014. Forest management allows conservation and sustainable production, but, for this, knowledge of diameter distribution is fundamental. This study aimed to characterize and analyze diameter distribution patterns of the species at different sites in the Brazilian Amazon. Data on trees with diameter ≥ 10 cm were acquired from continuous forest in permanent sample plots and preharvest forest inventories (PHFIs) of nine forest management areas. Absolute density, diameter distribution, and De Liocourt quotient (q) were calculated. Diameter distributions were fitted by a linearized Meyer type I distribution function, and the similarity between distributions was analyzed by the nonparametric Kruskal-Wallis test (H-test). The species showed high density (6.31 to 25.55 trees/ha). Mensrured diameters ranged from 10.00 to 127.32 cm. A decreasing behavior was observed in all diameter distributions, with few discontinuous distributions and mostly truncated distributions. The De Liocourt quotient (q) did not show constancy or proximity, with values ranging from 0.4 to 23.48. Diameter distributions did not differ by the Kruskal-Wallis test (H = 15.45, p = 0.3479). Diameter distributions fitted by the Meyer model resulted in an inverted ?J?-like curve. The diameter structure showed a high density of individuals, a decreasing distribution from smaller to larger diameter classes, a characteristic inverted ?J? pattern, and unbalanced diameter distributions. MenosVouacapoua americana Aublet was classified as endangered in 2013 and its extraction banned in 2014. Forest management allows conservation and sustainable production, but, for this, knowledge of diameter distribution is fundamental. This study aimed to characterize and analyze diameter distribution patterns of the species at different sites in the Brazilian Amazon. Data on trees with diameter ≥ 10 cm were acquired from continuous forest in permanent sample plots and preharvest forest inventories (PHFIs) of nine forest management areas. Absolute density, diameter distribution, and De Liocourt quotient (q) were calculated. Diameter distributions were fitted by a linearized Meyer type I distribution function, and the similarity between distributions was analyzed by the nonparametric Kruskal-Wallis test (H-test). The species showed high density (6.31 to 25.55 trees/ha). Mensrured diameters ranged from 10.00 to 127.32 cm. A decreasing behavior was observed in all diameter distributions, with few discontinuous distributions and mostly truncated distributions. The De Liocourt quotient (q) did not show constancy or proximity, with values ranging from 0.4 to 23.48. Diameter distributions did not differ by the Kruskal-Wallis test (H = 15.45, p = 0.3479). Diameter distributions fitted by the Meyer model resulted in an inverted ?J?-like curve. The diameter structure showed a high density of individuals, a decreasing distribution from smaller to larger diameter classes, a characteri... Mostrar Tudo |
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Thesagro: |
Acapu; Vouacapoua Americana. |
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Thesaurus Nal: |
Vouacapoua. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154764/1/Diameter-Distribution-of-Vouacapoua.pdf
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Marc: |
LEADER 02233naa a2200217 a 4500
001 2154764
005 2023-07-03
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5539/jas.v15n2p82$2DOI
100 1 $aPEREIRA JUNIOR, R. A.
245 $aDiameter distribution of Vouacapoua americana Aublet in the Brazilian Amazon.$h[electronic resource]
260 $c2023
520 $aVouacapoua americana Aublet was classified as endangered in 2013 and its extraction banned in 2014. Forest management allows conservation and sustainable production, but, for this, knowledge of diameter distribution is fundamental. This study aimed to characterize and analyze diameter distribution patterns of the species at different sites in the Brazilian Amazon. Data on trees with diameter ≥ 10 cm were acquired from continuous forest in permanent sample plots and preharvest forest inventories (PHFIs) of nine forest management areas. Absolute density, diameter distribution, and De Liocourt quotient (q) were calculated. Diameter distributions were fitted by a linearized Meyer type I distribution function, and the similarity between distributions was analyzed by the nonparametric Kruskal-Wallis test (H-test). The species showed high density (6.31 to 25.55 trees/ha). Mensrured diameters ranged from 10.00 to 127.32 cm. A decreasing behavior was observed in all diameter distributions, with few discontinuous distributions and mostly truncated distributions. The De Liocourt quotient (q) did not show constancy or proximity, with values ranging from 0.4 to 23.48. Diameter distributions did not differ by the Kruskal-Wallis test (H = 15.45, p = 0.3479). Diameter distributions fitted by the Meyer model resulted in an inverted ?J?-like curve. The diameter structure showed a high density of individuals, a decreasing distribution from smaller to larger diameter classes, a characteristic inverted ?J? pattern, and unbalanced diameter distributions.
650 $aVouacapoua
650 $aAcapu
650 $aVouacapoua Americana
700 1 $aRUSCHEL, A. R.
700 1 $aCOSTA, D. C. L.
700 1 $aPEREIRA, D. C. P.
700 1 $aSILVA, U. S. da C.
773 $tJournal of Agricultural Science$gv. 15, n. 2, p. 82-95, 2023.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
25/11/2022 |
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Data da última atualização: |
25/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CARVALHO, M. H. de; ROSA, S. D. V. F. da; COELHO, S. V. B.; GUIMARÃES, C. C.; MARTINS, R. de S.; CLEMENTE, A. da C. S.; PAIVA, L. V. |
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Afiliação: |
MAYARA HOLANDA DE CARVALHO; STTELA DELLYZETE VEIGA F DA ROSA, CNPCa; STEFÂNIA VIIAS BOAS COELHO, UNIVERSIDADE FEDERAL DE LAVRAS; CRISTIANE CARVALHO GUIMARÃES, UNIVERSIDADE ESTADUAL PAULISTA; RAYANA DE SÁ MARTINS, INSTITUTO DE BOTÂNICA; ALINE DA CONSOLAÇÃO SAMPAIO CLEMENTE, ONSEEDS TREINAMENTOS; LUCIANO VILELA PAIVA, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Drying of arabica coffee and its effect on the gene expression and activity of enzymes linked to seed physiological quality. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Acta Scientiarum: Agronomy, v. 45, e56908, 2023. |
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DOI: |
https://doi.org/10.4025/actasciagron.v45i1.56908 |
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Idioma: |
Inglês |
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Conteúdo: |
The reduced longevity of coffee seeds has been attributed to their sensitivity to desiccation. Studies related to gene expression and enzyme activity in coffee seeds under drying are important for understanding the effects of drying on their physiological quality. The aim of this study was to investigate the molecular aspects of seeds under different drying methods and associate them with physiological quality. Coffee seeds with different water contents were dried both slowly and rapidly. Enzymatic activity was analysed, as well as the expression of genes that encode the enzymes superoxide dismutase, catalase, peroxiredoxins, isocitrate lyase, and endo-ß-mannanase. There was a significant effect of drying speed and final water content on enzyme activity and on the expression of the different genes analysed. In seeds under rapid drying, there was greater expression of the genes that encode the enzymes catalase and endo-ß-mannanase. Greater expression of the 1 CYS PRX and SOD genes and greater activity of the ICL isoenzymes were found in seeds with superior physiological quality, but greater activity of the endo-β-mannanase and CAT enzymes occurred in seeds with lower physiological quality. |
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Thesaurus NAL: |
Coffea arabica var. arabica; Drying; Enzyme activity; Oxidative stress. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148771/1/Carvalho-et-al-2023-Drying-of-arabica-coffee-and-its-effect-on-the-gene-expression-and-activity-of-enzymes-linked-to-seed-physiological-quality.pdf
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Marc: |
LEADER 02045naa a2200253 a 4500
001 2148771
005 2022-11-25
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.4025/actasciagron.v45i1.56908$2DOI
100 1 $aCARVALHO, M. H. de
245 $aDrying of arabica coffee and its effect on the gene expression and activity of enzymes linked to seed physiological quality.$h[electronic resource]
260 $c2023
520 $aThe reduced longevity of coffee seeds has been attributed to their sensitivity to desiccation. Studies related to gene expression and enzyme activity in coffee seeds under drying are important for understanding the effects of drying on their physiological quality. The aim of this study was to investigate the molecular aspects of seeds under different drying methods and associate them with physiological quality. Coffee seeds with different water contents were dried both slowly and rapidly. Enzymatic activity was analysed, as well as the expression of genes that encode the enzymes superoxide dismutase, catalase, peroxiredoxins, isocitrate lyase, and endo-ß-mannanase. There was a significant effect of drying speed and final water content on enzyme activity and on the expression of the different genes analysed. In seeds under rapid drying, there was greater expression of the genes that encode the enzymes catalase and endo-ß-mannanase. Greater expression of the 1 CYS PRX and SOD genes and greater activity of the ICL isoenzymes were found in seeds with superior physiological quality, but greater activity of the endo-β-mannanase and CAT enzymes occurred in seeds with lower physiological quality.
650 $aCoffea arabica var. arabica
650 $aDrying
650 $aEnzyme activity
650 $aOxidative stress
700 1 $aROSA, S. D. V. F. da
700 1 $aCOELHO, S. V. B.
700 1 $aGUIMARÃES, C. C.
700 1 $aMARTINS, R. de S.
700 1 $aCLEMENTE, A. da C. S.
700 1 $aPAIVA, L. V.
773 $tActa Scientiarum: Agronomy$gv. 45, e56908, 2023.
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Registro original: |
Embrapa Café (CNPCa) |
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