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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
04/02/2020 |
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Data da última atualização: |
04/02/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, K. N. C.; MAGOSSO, B. F.; MULLER, G. V. M.; PIZZATTO, M.; SANTOS, L. B.; BEHLING, M.; FELIPE, R. T. A.; SILVA, A. C. da. |
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Afiliação: |
KALISTO NATAM CARNEIRO SILVA, UFMT, Sinop-MT; BEATRIZ FELTRIN MAGOSSO, UFMT, Sinop-MT; GABRIEL VINÍCIUS MIRANDA MULLER, UFMT, Sinop-MT; MARIANA PIZZATTO, UFMT, Sinop-MT; LUCAS BARTOLOMEU SANTOS, UFMT, Sinop-MT; MAUREL BEHLING, CPAMT; RAFAELLA TELES ARANTES FELIPE, UFMT, Sinop-MT; ANDRÉA CARVALHO DA SILVA, UFMT, Sinop-MT. |
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Título: |
Chlorophyll a fluorescence in young Bertholletia excelsa BONPL. plants subjected to different shading levels. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [anais]. [Rio Claro, SP: SBFV], 2019. p. 26. |
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Série: |
2675-1267 |
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Idioma: |
Inglês |
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Conteúdo: |
Photochemical responses are directly dependent on the level of incident solar radiation during the initial establishment of forest species. The aim of the current study was to evaluate chlorophyll a fluorescence in 2-year-old Bertholletia excelsa seedlings from July to October 2017. Samples were acclimated on polyolefin screens under different quantitative (35%, 50%, 65% and 80%) and qualitative (thermo-reflective, red, blue and green screens, at 50% solar radiation attenuation) shading levels and under full sun at the 77th, 105th, 122nd and 150th days after acclimation - DAA - (73 days) in Sinop County - MT. Estimates of effective quantum yield (ΦPSII) and electron transport rate (ETR) were performed in the OS5p Fluorometer (150 μmol m-2 s-1 PAR). The experimental design was completely randomized in factorial arrangements (5 x 4) and (6 x 4) (shading levels x time), with three repetitions (seedling). Data were subjected to analysis of variance, at 5% and 10% significance levels. There was significant interaction between shading and time; the maximum ETR (38.26 μmol m-2 s-1) and ΦPSII (0.77) points were estimated at the 116th DAA, at 77% and 76% shading levels, respectively. Red and green screens increased fluorescence parameters throughout the growth period. Seedlings showed low ability to differentiate changes in the quality of the intercepted light, however, those acclimated under full sun were less efficient to photochemically dissipate light energy. We conclude that intermediate shading levels (50% and 65%) increase the efficiency of Brazil nut tree seedlings in converting solar energy into chemical energy. MenosPhotochemical responses are directly dependent on the level of incident solar radiation during the initial establishment of forest species. The aim of the current study was to evaluate chlorophyll a fluorescence in 2-year-old Bertholletia excelsa seedlings from July to October 2017. Samples were acclimated on polyolefin screens under different quantitative (35%, 50%, 65% and 80%) and qualitative (thermo-reflective, red, blue and green screens, at 50% solar radiation attenuation) shading levels and under full sun at the 77th, 105th, 122nd and 150th days after acclimation - DAA - (73 days) in Sinop County - MT. Estimates of effective quantum yield (ΦPSII) and electron transport rate (ETR) were performed in the OS5p Fluorometer (150 μmol m-2 s-1 PAR). The experimental design was completely randomized in factorial arrangements (5 x 4) and (6 x 4) (shading levels x time), with three repetitions (seedling). Data were subjected to analysis of variance, at 5% and 10% significance levels. There was significant interaction between shading and time; the maximum ETR (38.26 μmol m-2 s-1) and ΦPSII (0.77) points were estimated at the 116th DAA, at 77% and 76% shading levels, respectively. Red and green screens increased fluorescence parameters throughout the growth period. Seedlings showed low ability to differentiate changes in the quality of the intercepted light, however, those acclimated under full sun were less efficient to photochemically dissipate light energy. ... Mostrar Tudo |
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Palavras-Chave: |
Mato Grosso; Sinop. |
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Thesagro: |
Bertholletia Excelsa. |
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Thesaurus Nal: |
Brazil nuts; Electron transport chain. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/210277/1/2019-cpamt-maurel-behling-chlorophyll-fluorescence-young-bertholletia-different-shading-levels.pdf
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Marc: |
LEADER 02576nam a2200265 a 4500
001 2119852
005 2020-02-04
008 2019 bl uuuu u00u1 u #d
100 1 $aSILVA, K. N. C.
245 $aChlorophyll a fluorescence in young Bertholletia excelsa BONPL. plants subjected to different shading levels.$h[electronic resource]
260 $aIn: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [anais]. [Rio Claro, SP: SBFV], 2019. p. 26.$c2019
490 $a2675-1267
520 $aPhotochemical responses are directly dependent on the level of incident solar radiation during the initial establishment of forest species. The aim of the current study was to evaluate chlorophyll a fluorescence in 2-year-old Bertholletia excelsa seedlings from July to October 2017. Samples were acclimated on polyolefin screens under different quantitative (35%, 50%, 65% and 80%) and qualitative (thermo-reflective, red, blue and green screens, at 50% solar radiation attenuation) shading levels and under full sun at the 77th, 105th, 122nd and 150th days after acclimation - DAA - (73 days) in Sinop County - MT. Estimates of effective quantum yield (ΦPSII) and electron transport rate (ETR) were performed in the OS5p Fluorometer (150 μmol m-2 s-1 PAR). The experimental design was completely randomized in factorial arrangements (5 x 4) and (6 x 4) (shading levels x time), with three repetitions (seedling). Data were subjected to analysis of variance, at 5% and 10% significance levels. There was significant interaction between shading and time; the maximum ETR (38.26 μmol m-2 s-1) and ΦPSII (0.77) points were estimated at the 116th DAA, at 77% and 76% shading levels, respectively. Red and green screens increased fluorescence parameters throughout the growth period. Seedlings showed low ability to differentiate changes in the quality of the intercepted light, however, those acclimated under full sun were less efficient to photochemically dissipate light energy. We conclude that intermediate shading levels (50% and 65%) increase the efficiency of Brazil nut tree seedlings in converting solar energy into chemical energy.
650 $aBrazil nuts
650 $aElectron transport chain
650 $aBertholletia Excelsa
653 $aMato Grosso
653 $aSinop
700 1 $aMAGOSSO, B. F.
700 1 $aMULLER, G. V. M.
700 1 $aPIZZATTO, M.
700 1 $aSANTOS, L. B.
700 1 $aBEHLING, M.
700 1 $aFELIPE, R. T. A.
700 1 $aSILVA, A. C. da
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca |
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| Registros recuperados : 68 | |
| 1. |  | FIGUEIREDO, M. A. de; PIO, R.; SILVA, T. C.; SILVA, K. N. Características florais e carpométricas e germinação in vitro de grãos de pólen de cultivares de amoreira-preta. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 7, p. 731-740, jul. 2013. Título em inglês: Floral and fruit characteristics of blackberry cultivars, and in vitro germination of their pollen grains.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 2. | | SILVA, K. N.; NICOLINI, C; SILVA, M. S.; FERNANDES, C. D.; NAGATA, T.; RESENDE, R. O. First Report of Johnsongrass mosaic virus (JGMV) Infecting Pennisetum purpureum in Brazil. Plant disease, v. 97, n. 7, p. 1003, 2013| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 4. | | SILVA, K. N. da; VIEIRA, E. A.; FIALHO, J. de F.; SANTOS FILHO, M. O. S. DOS. Avaliação participativa de acessos de mandioca de mesa no assentamento Cunha em Cidade Ocidental, GO. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 102-103 (Embrapa Cerrados. Documentos, 243).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 5. | | SILVA, K. N.; FERREIRA, A. F.; RIBEIRO, M. I. G.; VILENA, J. O.; MORAIS, B. S.; CHAGAS, E. A. Uso de GA3 na emergência e crescimento inicial de plantulas de camu-camu. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA ALICADA, 1.; SIMPÓSIO NACIONAL DE FRUTÍFERAS DO NORTE E NORDESTE, 1, 2012, Lavras. Resumos... Lavras, MG, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| 7. | | BRIGIDA, A. I. S.; SILVA, C. M.; STEPHAN, M. P.; ARAUJO, C. A.; SILVA, K. N.; GOTTSCHALK, L. M. F. Imobilização de lipases por adsorção em agarose modificada. In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 25.; CIGR SESSION 6 INTERNATIONAL TECHNICAL SYMPOSIUM, 10., 2016, Gramado. Alimentação: árvore que sustenta a vida. Anais. Gramado: SBCTA Regional, 2016. 6 p. Food: the tree that sustains life. 913.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 10. | | SANTOS FILHO, M. O. S.; VIEIRA, E. A.; FIALHO, J. de F.; SILVA, K. N. da; SOUZA, F. R. O. de. Avaliação agronômica de duas progênies F1 de mandioca de mesa. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 130-131 (Embrapa Cerrados. Documentos, 243).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 11. | | BOENO, L. C. R. de S.; SILVA, A. C. da; SILVA, K. N. C.; BOUVIÉ, L.; BORELLA, D. R.; BALDONI, A. B. Biometry of seedlings of Bertholletia excelsa in different growth conditions. In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [anais]. [Rio Claro, SP: SBFV], 2019. p. 21.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 12. | | SILVA, K. N. C.; MAGOSSO, B. F.; MULLER, G. V. M.; PIZZATTO, M.; SANTOS, L. B.; BEHLING, M.; FELIPE, R. T. A.; SILVA, A. C. da. Chlorophyll a fluorescence in young Bertholletia excelsa BONPL. plants subjected to different shading levels. In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [anais]. [Rio Claro, SP: SBFV], 2019. p. 26. 2675-1267| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 13. | | TADEU, M. H.; SILVA, K. N.; ALVES, J. K. B.; CHAGAS, E. A.; BACELAR-LIMA, C. G.; LOZANO, R. M. B. Caracterização biométrica e química de frutos de populações de camu-camu, Caracaraí, Roraima. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA ALICADA, 1.; SIMPÓSIO NACIONAL DE FRUTÍFERAS DO NORTE E NORDESTE, 1, 2012, Lavras. Resumos... Lavras, MG, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| 14. | | SILVA, K. N. da; COSTA, A. M.; SANTOS, A. L. de B.; CAMPOS, A. V. S.; FALEIRO, F. G.; JUNQUEIRA, N. T. V. Caracterização morfológica da matriz CPGA, genitor masculino do hibrido de maracujazeiro azedo BRS Gigante Amarelo. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
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| 16. | | SILVA, M. S.; VIEIRA, E. A.; FIALHO, J. de F.; DIANESE, A. de C.; SANTOS, H. R. dos; SILVA, K. N. da; SANTOS, M. F. dos. Caracterização de acessos de mandiocas coloridas e açucaradas quanto a resistência à bacteriose na Embrapa Cerrados. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
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| 17. | | SILVA, K. N.; MELO, F. L.; ORÍLIO, A. F.; NAGATA, T.; SILVA, M. S.; FERNANDES, C. D.; FRAGOSO, R. da R.; DESSAUNE, S. N.; RESENDE, R. O. Biological and molecular characterization of a highly divergent johnsongrass mosaic virus isolate from Pennisetum purpureum. Archives of Virology, v. 161, n, 7, p. 1981-1986, July 2016| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 18. | | SILVA, K. N.; MELO, F. L.; ORÍLIO, A. R.; NAGATA, T.; SILVA, M. S.; FERNANDES, C. D.; FRAGOSO, R. R.; DESSAUNE, S. N.; RESENDE, R. O. Biological and molecular characterization of a highly divergent johnsongrass mosaic virus isolate from Pennisetum purpureum. Archives of Virology, v. 161, n. 7, p. 1981-1986, 2016. p. 1981-1986| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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| 19. | | FIALHO, J. de F.; VIEIRA, E. A.; SILVA, M. S.; PAULA-MORAES, S. V. de; FUKUDA, W. M. G.; SANTOS FILHO, M. O. S. DOS; SILVA, K. N. Desempenho de variedades de mandioca de mesa no Distrito Federal. Revista Brasileira de Agrociência, Pelotas, v. 15, n. 1-4, p. 31-35, jan.-dez. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 68 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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