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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Café; Embrapa Rondônia. |
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Data corrente: |
16/03/2023 |
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Data da última atualização: |
21/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
UCHÔA, F. P.; VIEIRA JUNIOR, J. R.; FERNANDES, C. de F.; ROCHA, R. B.; ESPINDULA, M. C.; RUDNICK, V. A. DE S; SILVA, D. M. DA; FREIRE, T. C.; SANGI, S. C.; MARIOBO, S. A. R. |
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Afiliação: |
FRANCISCO PAIVA UCHÔA, Universidade Federal de Rondônia/UNIR; JOSE ROBERTO VIEIRA JUNIOR, CNPAT; CLEBERSON DE FREITAS FERNANDES, CNPAT; RODRIGO BARROS ROCHA, CPAF-RO; MARCELO CURITIBA ESPINDULA, CNPCa; VANEIDE ARAÚJO DE SOUSA RUDNICK, Entidade Autárquica de Assistência Técnica e Extensão Rural do Estado de Rondônia/EMATER-RO; DVANY MAMEDES DA SILVA, Universidade Federal de Rondônia/UNIR; TAMIRIS CHAVES FREIRE, Rede de Biodiversidade e Biotecnologia da Amazônia Legal/Rede BIONORTE; SIMONE CARVALHO SANGI, Rede de Biodiversidade e Biotecnologia da Amazônia Legal/Rede BIONORTE; SOLANGE APARECIDA RODRIGUES MARIOBO, Proatec. |
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Título: |
Evaluation of a prototype of soil thermal solarizer for control of gall nematode in the production of coffee seedlings. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Coffe Science, v. 18, e182014, 2023. |
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DOI: |
DOI: 10.25186/.v18i.2014 |
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Idioma: |
Inglês |
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Conteúdo: |
In coffee crops at Rondônia State of Brazil, there is an increase in phytonematode epidemics.Since most local coffe nurseries at Rondônia use soil as substrate for seedling production, this work aimed to test the minimum exposure time at 60 ºC to control of root-knot nematodes Meloidogyne incognita in soil by means of solar heating, using a solarizer, in an adapted version for better heating perfomance. The used solarizer prototype was built of a wooden box covered with metal sheets, thermal blankets, painted black, with aluminum pipes of 0.5 cm in diameter at the bottom of the box that circulates the water heated by the collector box. The soil was inoculated with a suspension of 1000 eggs + J2 of M. incognita per liter and placed in equipment with a capacity of 150 liters. Exposure times at a minimum temperature of 60 °C were evaluated, with 14 treatments: C1 (non-inoculated and not autoclaved), C2 (inoculated), C3 (non-inoculated and autoclaved) T0?, T15?, T30?, T45?, T60?, T180?, T360?, T720?, T1440?, T2880? and T4320? . The temperature was measured every 15 minutes using a skewer-type digital thermometer. The soil was removed according to the exposure time, and placed in 8-liter pots, in which clone 125 and BRS 2357 coffee seedlings, susceptible to M. incognita , were transplanted and growing in a greenhouse for 180 days. The experimental design used was DIC, with 6 replications, each seedling as na experimental unit. Reproduction factor (FR), number of eggs per plant (NOGR) and number of galls per gram of root (NGGR) were evaluated. The FR, NOGR and NGGR variables reduced with exposure time. All treatments showed an effect to control the population of M. incognita in infected soils, with 100% efficacy of pathogen eradication from the T45? treatment, 60 minutes of exposure is recommended for the production of Coffea canephora seedlings. Taken together, thir work showed the high potential of thr solorizer to contribute in the root-knot nematode control to seedling production. MenosIn coffee crops at Rondônia State of Brazil, there is an increase in phytonematode epidemics.Since most local coffe nurseries at Rondônia use soil as substrate for seedling production, this work aimed to test the minimum exposure time at 60 ºC to control of root-knot nematodes Meloidogyne incognita in soil by means of solar heating, using a solarizer, in an adapted version for better heating perfomance. The used solarizer prototype was built of a wooden box covered with metal sheets, thermal blankets, painted black, with aluminum pipes of 0.5 cm in diameter at the bottom of the box that circulates the water heated by the collector box. The soil was inoculated with a suspension of 1000 eggs + J2 of M. incognita per liter and placed in equipment with a capacity of 150 liters. Exposure times at a minimum temperature of 60 °C were evaluated, with 14 treatments: C1 (non-inoculated and not autoclaved), C2 (inoculated), C3 (non-inoculated and autoclaved) T0?, T15?, T30?, T45?, T60?, T180?, T360?, T720?, T1440?, T2880? and T4320? . The temperature was measured every 15 minutes using a skewer-type digital thermometer. The soil was removed according to the exposure time, and placed in 8-liter pots, in which clone 125 and BRS 2357 coffee seedlings, susceptible to M. incognita , were transplanted and growing in a greenhouse for 180 days. The experimental design used was DIC, with 6 replications, each seedling as na experimental unit. Reproduction factor (FR), number of eggs per plant (N... Mostrar Tudo |
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Palavras-Chave: |
Thermal control. |
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Thesagro: |
Café; Controle Térmico; Meloidogyne Incognita. |
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Thesaurus Nal: |
Coffea canephora var. laurentii. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152410/1/ART-23006.pdf
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Marc: |
LEADER 02935naa a2200301 a 4500
001 2152410
005 2023-03-21
008 2023 bl uuuu u00u1 u #d
024 7 $aDOI: 10.25186/.v18i.2014$2DOI
100 1 $aUCHÔA, F. P.
245 $aEvaluation of a prototype of soil thermal solarizer for control of gall nematode in the production of coffee seedlings.$h[electronic resource]
260 $c2023
520 $aIn coffee crops at Rondônia State of Brazil, there is an increase in phytonematode epidemics.Since most local coffe nurseries at Rondônia use soil as substrate for seedling production, this work aimed to test the minimum exposure time at 60 ºC to control of root-knot nematodes Meloidogyne incognita in soil by means of solar heating, using a solarizer, in an adapted version for better heating perfomance. The used solarizer prototype was built of a wooden box covered with metal sheets, thermal blankets, painted black, with aluminum pipes of 0.5 cm in diameter at the bottom of the box that circulates the water heated by the collector box. The soil was inoculated with a suspension of 1000 eggs + J2 of M. incognita per liter and placed in equipment with a capacity of 150 liters. Exposure times at a minimum temperature of 60 °C were evaluated, with 14 treatments: C1 (non-inoculated and not autoclaved), C2 (inoculated), C3 (non-inoculated and autoclaved) T0?, T15?, T30?, T45?, T60?, T180?, T360?, T720?, T1440?, T2880? and T4320? . The temperature was measured every 15 minutes using a skewer-type digital thermometer. The soil was removed according to the exposure time, and placed in 8-liter pots, in which clone 125 and BRS 2357 coffee seedlings, susceptible to M. incognita , were transplanted and growing in a greenhouse for 180 days. The experimental design used was DIC, with 6 replications, each seedling as na experimental unit. Reproduction factor (FR), number of eggs per plant (NOGR) and number of galls per gram of root (NGGR) were evaluated. The FR, NOGR and NGGR variables reduced with exposure time. All treatments showed an effect to control the population of M. incognita in infected soils, with 100% efficacy of pathogen eradication from the T45? treatment, 60 minutes of exposure is recommended for the production of Coffea canephora seedlings. Taken together, thir work showed the high potential of thr solorizer to contribute in the root-knot nematode control to seedling production.
650 $aCoffea canephora var. laurentii
650 $aCafé
650 $aControle Térmico
650 $aMeloidogyne Incognita
653 $aThermal control
700 1 $aVIEIRA JUNIOR, J. R.
700 1 $aFERNANDES, C. de F.
700 1 $aROCHA, R. B.
700 1 $aESPINDULA, M. C.
700 1 $aRUDNICK, V. A. DE S
700 1 $aSILVA, D. M. DA
700 1 $aFREIRE, T. C.
700 1 $aSANGI, S. C.
700 1 $aMARIOBO, S. A. R.
773 $tCoffe Science$gv. 18, e182014, 2023.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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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: |
12/02/2014 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
AGUIAR, N. O.; NOVOTNY, E. H.; OLIVEIRA, A. L.; RUMJANEK, V. M.; OLIVARES, F. L.; CANELLAS, L. P. |
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Afiliação: |
Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF); ETELVINO HENRIQUE NOVOTNY, CNPS; Laboratório de Química do Núcleo de Criminalística da Superintendência da Polícia Federal no Estado do Rio de Janeiro; Laboratório de Química do Núcleo de Criminalística da Superintendência da Polícia Federal no Estado do Rio de Janeiro; Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF); L.P. Canellas, Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). |
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Título: |
Prediction of humic acids bioactivity using spectroscopy and multivariate analysis. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Geochemical Exploration, v. 129, p. 95-102, Jun. 2013. |
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DOI: |
https://doi.org/10.1016/j.gexplo.2012.10.005 |
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Idioma: |
Inglês |
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Conteúdo: |
Humic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from long chain fat acids due to the presence of rocking absorption band of (CH2)n with n>4 at 720 cm-1 and negative loadings due to carbohydrate moieties (around 1100 cm-1, C-O stretching) and carboxylic acids (1724 cm-1, C-O stretching and 1220 cm-1, C-OH stretching and CO-H bending). The use of spectroscopy data to attempt to relate structure to bioactivity may be of practical interest in developing plant growth promoters using renewed source of humic materials. MenosHumic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from lo... Mostrar Tudo |
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Palavras-Chave: |
Análise multivariada; Efeitos fisiológicos; Espectroscopia RMN; Relação bioatividade estrutural; Tração. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02769naa a2200253 a 4500
001 1979549
005 2021-11-10
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.gexplo.2012.10.005$2DOI
100 1 $aAGUIAR, N. O.
245 $aPrediction of humic acids bioactivity using spectroscopy and multivariate analysis.$h[electronic resource]
260 $c2013
520 $aHumic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from long chain fat acids due to the presence of rocking absorption band of (CH2)n with n>4 at 720 cm-1 and negative loadings due to carbohydrate moieties (around 1100 cm-1, C-O stretching) and carboxylic acids (1724 cm-1, C-O stretching and 1220 cm-1, C-OH stretching and CO-H bending). The use of spectroscopy data to attempt to relate structure to bioactivity may be of practical interest in developing plant growth promoters using renewed source of humic materials.
653 $aAnálise multivariada
653 $aEfeitos fisiológicos
653 $aEspectroscopia RMN
653 $aRelação bioatividade estrutural
653 $aTração
700 1 $aNOVOTNY, E. H.
700 1 $aOLIVEIRA, A. L.
700 1 $aRUMJANEK, V. M.
700 1 $aOLIVARES, F. L.
700 1 $aCANELLAS, L. P.
773 $tJournal of Geochemical Exploration$gv. 129, p. 95-102, Jun. 2013.
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