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| Registros recuperados : 167 | |
| 101. |  | STEPHANO FILHO, R.; PEREIRA, C. C.; FIGUEIREDO, N. A. de; ROSA, S. D. V. F. da; SOUZA, A. C. de; CARVALHO, M. A. de F. Mudas de Coffea arabica L. provenientes de sementes criopreservadas. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 29., 2016, Lavras. [Anais...] Lavras: Universidade Federal de Lavras, 2016.| Biblioteca(s): Embrapa Café. |
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| 102. | | FERREIRA, V. F.; RICALDONI, M. A.; ROSA, S. D. V. F. da; FIQUEIREDO, M. A.; COELHO, S. V. B.; FANTAZZINI, T. B. Endo-ß-mannanase enzyme activity in the structures of Coffea arabica L. seeds under different types of processing and drying. Ciência Rural, Santa Maria, v. 48, n. 12, e20170839, 2018 Título em português: Atividade da enzima endo-ß-mananase nas estruturas de sementes de Coffea arabica L. submetidas a diferentes tipos de processamentos e secagem| Biblioteca(s): Embrapa Café. |
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| 104. | | ROSA, S. D. V. F. da; CARVALHO, A. M.; McDONALD, M. B.; VON PINHO, E. R. V.; SILVA, A. P.; VEIGA, A. D. The effect of storage conditions on coffee seed and seedling quality. Seed Science and Technology, v. 39, n. 1, p. 151-164, 2011.| Biblioteca(s): Embrapa Café. |
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| 106. | | FIDELIS, I.; FREIRE, A. I.; CHAVES, A. R. C. da S.; ROSA, S. D. V. F. da; SANTOS, G. C.; SANTOS, F. C.; MATOS, D. P. de. Efeito de doses nitrogenadas e épocas de irrigaão na qualidade fisiológica de semente de café. In: CONGRESSO BRASILEIRO DE PESQUISA CAFEEIROAS, 36., 2010, Guarapari. Anais...Brasília, DF: Embrapa Café, 2010.| Biblioteca(s): Embrapa Café. |
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| 107. | | MALTA, M. R.; PEREIRA, R. G. F. A.; CHAGAS, S. J. R.; ROSA, S. D. V. F. da; GUIMARÃES, R. J. Efeito da conversão de lavouras cafeeiras convencionais em orgânicas na produtividade do cafeeiro. In: CONGRESSO BRASILEIRO DE PESQUISAS CAFEEIRAS, 33., 2007, Lavras. Anais... Brasília, DF: Embrapa Café, 2009.| Biblioteca(s): Embrapa Café. |
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| 108. | | MALTA, M. R.; PEREIRA, R. G. F. A.; CHAGAS, S. J. R.; ROSA, S. D. V. F. da; GUIMARÃES, R. J. Efeito da conversão de lavouras cafeeiras convencionais em orgânicas na qualidade do café. In: CONGRESSO BRASILEIRO DE PESQUISAS CAFEEIRAS, 33., 2007, Lavras. Anais... Brasília, DF: Embrapa Café, 2009.| Biblioteca(s): Embrapa Café. |
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| 109. | | BAUTE, J. L.; RICALDANI, M. A.; ROSA, S. D. V. F. da; FIGUEIREDO, M. A.; LIMA, A. V.; FANTAZZINI, T. B. Comportamento de sementes de cultivares de café, submetidas a diferentes períodos de envelhecimento acelerado e natural. In: CONGRESSO BRASILEIRO DE PESQUISAS CAFEEIRAS, 42., 2016, Serra Negra, SP. Produzir mais café, com economia, só com boa tecnologia: trabalhos apresentados. Varginha: Fundação Procafé, 2016. 466 p.| Biblioteca(s): Embrapa Café. |
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| 110. | | VEIGA, A. D.; ROSA, S. D. V. F. da; BRANDÃO JUNIOR, D. da S.; SILVA, L. H. de C.; PIEDADE, J. M. Efeitos de diferentes lâminas de irrigação na qualidade fisiológica e física de sementes de Coffea arabica L. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 3., 2003, Porto Seguro. Resumos... Brasília, DF: Embrapa Café, 2003.| Biblioteca(s): Embrapa Café. |
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| 111. | | MALTA, M. R.; ROSA, S. D. V. F. da; SANTOS, J. B.; FASSIO, L. O.; LIMA, P. M.; BRITO, M. S. Influência da secagem lenta e rápida na qualidade do café arábica. In: CONGRESSO BRASILEIRO DE PESQUISAS CAFEEIRAS, 37., 2011, Poços de Caldas. Anais... Brasília, DF: Embrapa Café, 2011.| Biblioteca(s): Embrapa Café. |
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| 112. | | ALMEIDA, T. T. de; ROSA, S. D. V. F. da; OLIVEIRA, J. A.; OLIVEIRA, A. dos S.; SILVA, A. A. da; PEREIRA, D. de S. Influence of tannin on sorghum seed germination. African Journal of Food Science and Technology, v. 5, n. 6, p. 136-142, jun. 2014.| Biblioteca(s): Embrapa Café. |
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| 114. | | VILELA, F. de L.; ROSA, S. D. V. F. da; McDONALD, M. B.; BENNETT, M. A.; PEREIRA, D. de M.; TOSTA, M. F. Testes para avaliação do vigor de sementes de café. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 6., 2009, Vitória. Inovação científica, competitividade e mudanças climáticas : anais. Vitória: Consórcio Pesquisa Café, 2009.| Biblioteca(s): Embrapa Café. |
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| 115. | | VIEGA, A. D.; ROSA, S. D. V. F. da; SILVA, P. de A.; OLIVEIRA, J. A. de; ALVIM, P. de O.; DINIZ, K. A. Tolerância de sementes de soja à dessecação. Ciência e Agrotecnologia, Lavras, v. 33, n. 3, p. 773-780, 2007.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 116. | | COELHO, S. V. B.; ROSA, S. D. V. F. da; PEREIRA, C. C.; LOUSADO, A. V. C.; SOUZA, L. N. C. de; LIMA, V. A. Tolerance of Coffea arabica L. seeds to subzero temperatures after fast and slow drying. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 26., 2016, Kunming,Yunnan, China. Proceedings... ASIC - Association for Science and Information on Coffee, 2016. p. 119.| Biblioteca(s): Embrapa Café. |
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| 117. | | COELHO, S. V. B.; ROSA, S. D. V. F. da; CLEMENTE, A. da C. S.; PEREIRA, C. C.; FIGUEIREDO, M. A. de; REIS, L. V. Tolerance of Coffea arabica L. seeds to sub zero temperatures. Ciência e Agrotecnologia, v. 41, n. 3, p. 312-321, May/Jun. 2017. Título em português: Tolerância de sementes de Coffea arabica L. à temperaturas sub zero.| Biblioteca(s): Embrapa Café. |
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| 119. | | TOSTA, M. F.; ROSA, S. D. V. F. da; RIBEIRO, D. E.; ROQUE, D. J. O.; DIAS, C. A.; MIRANDA, F. M.; BORÉM, F. M. Use of physiological analyzes to evaluate the quality of different genotypes green coffee to different altitudes. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 26., 2016, Kunming,Yunnan, China. Proceedings... ASIC - Association for Science and Information on Coffee, 2016. p. 116.| Biblioteca(s): Embrapa Café. |
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| Registros recuperados : 167 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
11/12/2017 |
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Data da última atualização: |
11/12/2017 |
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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: |
COELHO, S. V. B.; ROSA, S. D. V. F. da; CLEMENTE, A. da C. S.; PEREIRA, C. C.; FIGUEIREDO, M. A. de; REIS, L. V. |
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Afiliação: |
STEFANIA VILAS BOAS COELHO, UFLA; STTELA DELLYZETE VEIGA F DA ROSA, SAPC; ALINE DA CONSOLAÇÃO SAMPAIO CLEMENTE, UFLA; CRISTIANE CARVALHO PEREIRA, UFLA; MADELEINE ALVES DE FIGUEIREDO, UFLA; LEANDRO VILELA REIS, UFLA. |
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Título: |
Tolerance of Coffea arabica L. seeds to sub zero temperatures. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 41, n. 3, p. 312-321, May/Jun. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Tolerância de sementes de Coffea arabica L. à temperaturas sub zero. |
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Conteúdo: |
Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially when the seeds are dried to 0.05 g H2O g-¹ dw. The catalase enzyme can be used as a biochemical marker to study tolerance to freezing in coffee seeds. MenosPreservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially whe... Mostrar Tudo |
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Palavras-Chave: |
Antioxidant enzymes; Enzima antioxidante; Saturated saline solutions; Solução salina saturada. |
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Thesagro: |
Congelamento; Secagem. |
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Thesaurus NAL: |
Drying; Freezing; Silica gel. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168585/1/Tolerance-of-Coffea-arabica-L.-seeds.pdf
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Marc: |
LEADER 02600naa a2200301 a 4500
001 2082056
005 2017-12-11
008 2017 bl uuuu u00u1 u #d
100 1 $aCOELHO, S. V. B.
245 $aTolerance of Coffea arabica L. seeds to sub zero temperatures.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Tolerância de sementes de Coffea arabica L. à temperaturas sub zero.
520 $aPreservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially when the seeds are dried to 0.05 g H2O g-¹ dw. The catalase enzyme can be used as a biochemical marker to study tolerance to freezing in coffee seeds.
650 $aDrying
650 $aFreezing
650 $aSilica gel
650 $aCongelamento
650 $aSecagem
653 $aAntioxidant enzymes
653 $aEnzima antioxidante
653 $aSaturated saline solutions
653 $aSolução salina saturada
700 1 $aROSA, S. D. V. F. da
700 1 $aCLEMENTE, A. da C. S.
700 1 $aPEREIRA, C. C.
700 1 $aFIGUEIREDO, M. A. de
700 1 $aREIS, L. V.
773 $tCiência e Agrotecnologia$gv. 41, n. 3, p. 312-321, May/Jun. 2017.
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