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Registros recuperados : 205 | |
41. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VALDEBENITO-SANHUEZA, R. M.; DUARTE, V.; AMORIM, L.; PORTO, M. D. M. Detecção e edpidemiologia da podridão branca da maçã. Fitopatologia Brasileira, Brasília, DF, v. 30, n. 3, p. 217-223, 2005. Biblioteca(s): Embrapa Uva e Vinho. |
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42. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VALDEBENITO-SANHUEZA, R. M.; DUARTE, V.; AMORIM, L.; PORTO, M. D. M. Detecção e epidemiologia da podridão branca da maçã. Fitopatologia Brasileira, Brasília, DF, v. 30, n. 3, p. 217-223, 2005. Biblioteca(s): Embrapa Uva e Vinho. |
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45. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | LEITE, R. M. V. B. C.; AMORIM, L.; BERGAMIN FILHO, A. Efeito de épocas de semeadura e do inóculo inicial de Alternaria helianthi em girassol. In: REUNIÃO NACIONAL DE PESQUISA DE GIRASSOL, 16.; SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 4., 2005, Londrina. Anais... Londrina: Embrapa Soja, 2005. p. 101-104. (Embrapa Soja. Documentos, 261). Organizado por Regina Maria Villas Bôas de Campos Leite, Simone Ery Grosskopf. Biblioteca(s): Embrapa Soja. |
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50. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ALMEIDA, A. M. R.; TORRES, E.; SARAIVA, O. F.; AMORIM, L.; BERGAMIN FILHO, A. Doenças de soja nos sistemas de semeadura direta e convencional. Fitopatologia Brasileira, Brasília, v. 28, p. 40-42, ago. 2003. Suplemento. Edição do XXXVI Congresso Brasileiro de Fitopatologia,Uberlândia,, MG, ago. 2003. Biblioteca(s): Embrapa Soja. |
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51. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | AMORIM, L. O. do; OLIVIERA, L. C. de; CURADO, F. F.; SANTOS, A. da S. dos. Troca de saberes como estratégia de formação e valorização das sementes crioulas: a ação do movimento de pequenos agricultores (MPA) em Poço Redondo, Sergipe, Brasil. In: CONGRESSO LATINOAMERICANO DE AGROECOLOGIA, 5., 2015, La Plata. La agroecologia in nuevo paradigma para redefinir la investigacion. la educacion y la extension para una agricultura sustentable: memorias. La Plata: Universidad Nacional de La Plata, 2015. Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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55. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | GONÇALVES, F. P.; LOURENÇO, S. A.; STUCHI, E. S.; HAU, B.; AMORIM, L. Comparative analysis for quantification of citrus variegated chlorosis in the field. Scientia Agricola, Piracicaba, Braz., v. 68, n. 5, p. 562-565, September/October 2011. Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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58. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | TAVARES, S. C. C. de H.; AMORIM, L. R.; LIMA, J. A. S.; DOURADO, M. Influência de doenças em aspargo consorciado com leguminosa. Horticultura Brasileira, Brasilia, DF, v. 15, 1997. Suplemento. Edição dos Resumos do 37. Congresso Brasileiro de Olericultura, Manaus, 1997. Resumo 314. Biblioteca(s): Embrapa Semiárido. |
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59. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | MARTINS, M. C.; AMORIM, L.; LOURENÇO, S. A.; GUTIERREZ, A. S. D.; WATANABE, H. S. Incidência de danos pós-colheita em goiabas no mercado atacadista de São Paulo e sua relação com a prática de ensacamento dos frutos. Revista Brasileira de Fruticultura, Jaboticabal, v. 29, n. 2, p. 245-248, ago. 2007. Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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Registros recuperados : 205 | |
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Registro Completo
Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
17/02/2011 |
Data da última atualização: |
20/05/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
FURTADO, G. Q.; MORAES, S. R. G.; ALVES, S. A. M.; AMORIM, L.; MASSOLA JUNIOR, N. S. |
Afiliação: |
GLEIBER QUINTÃO FURTADO, UFV; SYLVIA RAQUEL GOMES MORAES, ESALQ/USP; SILVIO ANDRE MEIRELLES ALVES, CNPUV; LILIAN AMORIM, UFV; NELSON SIDNEI MASSOLA JUNIOR, UFV. |
Título: |
The infection of soybean leaves by Phakopsora pachyrhizi during conditions of discontinuous wetness. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Journal of Phytopathology, Berlin, v. 159, n. 3, p. 165-170, mar. 2011. |
Volume: |
159 |
Páginas: |
165-170 |
DOI: |
10.1111/j.1439-0434.2010.01742.x |
Idioma: |
Inglês |
Conteúdo: |
The ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on the soybean leaves occurred after 2 h of wetness, with a maximum germination appearing after 4 h of wetness. Wetness interruption affected mainly the spores that had initiated the germination. MenosThe ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on th... Mostrar Tudo |
Thesagro: |
Doença de planta; Ferrugem; Folha; Fungo; Soja; Umidade. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/27516/1/SILVIO-JPhytopathol-v159p165-2011.pdf
|
Marc: |
LEADER 02488naa a2200277 a 4500 001 1877741 005 2019-05-20 008 2011 bl uuuu u00u1 u #d 024 7 $a10.1111/j.1439-0434.2010.01742.x$2DOI 100 1 $aFURTADO, G. Q. 245 $aThe infection of soybean leaves by Phakopsora pachyrhizi during conditions of discontinuous wetness.$h[electronic resource] 260 $c2011 300 $a165-170 159 490 $v159 520 $aThe ability of Phakopsora pachyrhizi to cause infection under conditions of discontinuous wetness was investigated. In in vitro experiments, droplets of a uredospore suspension were deposited onto the surface of polystyrene. After an initial wetting period of either 1, 2 or 4 h, the drops were dried for different time intervals and then the wetness was restored for 11, 10 or 8 h. Germination and appressorium formation were evaluated. In in vivo experiments, soybean plants were inoculated with a uredospore suspension. Leaf wetness was interrupted for 1, 3 or 6 h after initial wetting periods of 1, 2 or 4 h. Then, the wetting was re-established for 11, 10 or 8 h, respectively. Rust severity was evaluated 14 days after inoculation. The germination of the spores and the formation of the appressoria on the soybean leaves after different periods of wetness were also quantified in vivo by scanning electron microscopy. P. pachyrhizi showed a high infective capacity during short periods of time. An interruption of wetness after 1 h caused average reductions in germination from 56 to 75% and in appressorium formation from 84 to 96%. Rust severity was lower in all of the in vivo treatments with discontinuous wetness when compared to the control plants. Rust severity was zero when the interruption of wetness occurred 4 h after the initial wetting. Wetting interruptions after 1 and 2 h reduced the average rust severity by 83 and 77%, respectively. The germination of the uredospores on the soybean leaves occurred after 2 h of wetness, with a maximum germination appearing after 4 h of wetness. Wetness interruption affected mainly the spores that had initiated the germination. 650 $aDoença de planta 650 $aFerrugem 650 $aFolha 650 $aFungo 650 $aSoja 650 $aUmidade 700 1 $aMORAES, S. R. G. 700 1 $aALVES, S. A. M. 700 1 $aAMORIM, L. 700 1 $aMASSOLA JUNIOR, N. S. 773 $tJournal of Phytopathology, Berlin$gv. 159, n. 3, p. 165-170, mar. 2011.
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