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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
29/08/2017 |
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Data da última atualização: |
29/08/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PERUCH, L. A. M.; MICHEREFF, S. J.; SILVA, A. C. F. |
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Título: |
SPORE PRODUCTION LONGEVITY OF ALTERNARIA BRASSICICOLA IN LEAVES DEBRIS OF BROCCOLI. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 8., 2016, Florianópolis. Resumos... Florianopolis: Sociedade Brasileira de Micologia, 2016. p. 248 |
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Idioma: |
Inglês |
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Conteúdo: |
The fungus Alternaria brassicicola is the main causal agent of Alternaria black spot in Brassica species in Brazil, but there is no studies related to factors affecting the pathogen longevity in leaves debris under the Brazilian conditions. The spore production longevity of A. brassicicola was investigated in leaves debris of broccoli, considering different depths of debris incorporation and systems of soil handling in the subtropical conditions of Santa Catarina, Brazil. Infected leaves debris of broccoli were distributed in portions in fields under conventional and organic management on the soil surface and at depths of 5 and 10 cm. Periodically, the debris in the bags were collected and conidia concentrations were quantified for longevity of spore production (days) and extinction rate (%/day). Data were submitted to Z test (5% error). The data showed that depth of debris incorporation influenced directly on pathogen spores production, being lower when incorporation was made at 5 and 10 cm depth. Pathogen inoculum survived 31 days at soil surface and 14 days at 10 cm depth. In relation to soil handling systems, when the inoculum source was deposited on the soil surface or 5 cm depth there were no differences in the rate of spore production extinction, but at depth of 10 cm, the rate was significantly higher in the soil under conventional handling. This means that higher extinction rates are expected in conventional management compared to organic systems. The management of Alternaria black spot on broccoli at the area under study can be accomplished by incorporating infected leaves debris in the soil, at least 10 cm depth, along with crop rotation, for no less than a 35-day interval in subsequent brassica plantings. MenosThe fungus Alternaria brassicicola is the main causal agent of Alternaria black spot in Brassica species in Brazil, but there is no studies related to factors affecting the pathogen longevity in leaves debris under the Brazilian conditions. The spore production longevity of A. brassicicola was investigated in leaves debris of broccoli, considering different depths of debris incorporation and systems of soil handling in the subtropical conditions of Santa Catarina, Brazil. Infected leaves debris of broccoli were distributed in portions in fields under conventional and organic management on the soil surface and at depths of 5 and 10 cm. Periodically, the debris in the bags were collected and conidia concentrations were quantified for longevity of spore production (days) and extinction rate (%/day). Data were submitted to Z test (5% error). The data showed that depth of debris incorporation influenced directly on pathogen spores production, being lower when incorporation was made at 5 and 10 cm depth. Pathogen inoculum survived 31 days at soil surface and 14 days at 10 cm depth. In relation to soil handling systems, when the inoculum source was deposited on the soil surface or 5 cm depth there were no differences in the rate of spore production extinction, but at depth of 10 cm, the rate was significantly higher in the soil under conventional handling. This means that higher extinction rates are expected in conventional management compared to organic systems. The management of ... Mostrar Tudo |
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Palavras-Chave: |
Alternaria black spot; brassica; Brassica oleracea var italica; inoculum source; survival. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02452naa a2200205 a 4500
001 1126578
005 2017-08-29
008 2016 bl uuuu u00u1 u #d
100 1 $aPERUCH, L. A. M.
245 $aSPORE PRODUCTION LONGEVITY OF ALTERNARIA BRASSICICOLA IN LEAVES DEBRIS OF BROCCOLI.$h[electronic resource]
260 $c2016
520 $aThe fungus Alternaria brassicicola is the main causal agent of Alternaria black spot in Brassica species in Brazil, but there is no studies related to factors affecting the pathogen longevity in leaves debris under the Brazilian conditions. The spore production longevity of A. brassicicola was investigated in leaves debris of broccoli, considering different depths of debris incorporation and systems of soil handling in the subtropical conditions of Santa Catarina, Brazil. Infected leaves debris of broccoli were distributed in portions in fields under conventional and organic management on the soil surface and at depths of 5 and 10 cm. Periodically, the debris in the bags were collected and conidia concentrations were quantified for longevity of spore production (days) and extinction rate (%/day). Data were submitted to Z test (5% error). The data showed that depth of debris incorporation influenced directly on pathogen spores production, being lower when incorporation was made at 5 and 10 cm depth. Pathogen inoculum survived 31 days at soil surface and 14 days at 10 cm depth. In relation to soil handling systems, when the inoculum source was deposited on the soil surface or 5 cm depth there were no differences in the rate of spore production extinction, but at depth of 10 cm, the rate was significantly higher in the soil under conventional handling. This means that higher extinction rates are expected in conventional management compared to organic systems. The management of Alternaria black spot on broccoli at the area under study can be accomplished by incorporating infected leaves debris in the soil, at least 10 cm depth, along with crop rotation, for no less than a 35-day interval in subsequent brassica plantings.
653 $aAlternaria black spot
653 $abrassica
653 $aBrassica oleracea var italica
653 $ainoculum source
653 $asurvival
700 1 $aMICHEREFF, S. J.
700 1 $aSILVA, A. C. F.
773 $tIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 8., 2016, Florianópolis. Resumos... Florianopolis: Sociedade Brasileira de Micologia, 2016. p. 248
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Registro original: |
Epagri-Sede (Epagri-Sede) |
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| Registros recuperados : 497 | |
| 462. |  | VEPPO, J.; BLEY, C. L. M.; FELTRIN, R. H.; ZANELLA, M.; GUARDINI, R.; VOLPATO, M. B.; KOERICH, C. A. SISTEMA DE PLANTIO DE HORTALIÇAS COMO FERRAMENTA PARA CONSERVAÇAO DE SOLOS. In: CONGRESSO LATINO-AMERICANO DE CIÊNCIA DO SOLO, 23., CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 38., 2023, Florianópolis. Resumos... Florianópolis: Epagri, 2023. p. 1355| Tipo: Resumo em Anais de Congresso |
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| 465. | | VOGT, G. A.; BALBINOT JÚNIOR, A. A.; BACKES, R. L. Estabilidade e adaptabilidade de variedades de polinização aberta de milho em Santa Catarina. Agropecuária Catarinense, Florianópolis, SC, v. 24, n. 1, p. 77-82, 2011. ISSN, 0103-0779| Tipo: Artigo em Periódico Indexado | Circulação/Nível: -- - -- |
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| 466. | | LICHTEMBERG, L. A. Estado actual de la producción sostenible de bananos subtropicales en Brasil. In: CONGRESO INTERNACIONAL DE BANANO EARTH, 2013, Las Mercedes, Guácimo, Limón, Costa Rica. Producción Sostenible de Banano: mejoramiento genético, seguridad alimentária, manejo agronómico y carbono neutralidad. Las Mercedes, Guácimo, Costa Rica : EARTH University, 2013. p. 25.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| 473. | | BRUNETTO, G.; ROZANE, D. E.; NATALE, W.; HAHN, L.; ANDRADE, C. B.; MOURA-BUENO, J. M.; TRAPP, T.; COMIN, J. J. Predição de nutrientes em frutíferas como estratégia para racionalizar a fertilização. In: Nogueira, T. A. R.; Cherubin, M. R.; Pereira, A. P. A.; Tiecher, T. (Eds.) Tópicos em Ciência do Solo. Viçosa, MG: SBCS, 2023. p. 205-237| Tipo: Capítulo em Livro Técnico-Científico |
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| 477. | | BAZZAN, J. V. Z.; CARRA, B.; ABREU, E. S.; SPAGNOL, D.; PASA, M. S.; FACHINELLO, J. C. QUALIDADE DE FRUTOS DE PEREIRAS ?SHINSEIKI? SUBMETIDAS A PODA DE RAIZ E PROHEXADIONA CÁLCICA. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UNIVERSIDADE FEDERAL DE PELOTAS, 24., 2015, Pelotas. Anais... Pelotas: UFPel, 2015.| Tipo: Resumo em Anais de Congresso |
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| 480. | | CORDOVA, U. de A.; PRESTES, N. E.; SANTOS, O. V. Validação da tecnologia de melhoramento de pastagens naturais no Planalto Sul de Santa Catarina. Revista do Produtor Rural, Guarapuava, PR, v. 6, n. 33, p. 72-76, 2012. ISSN, 1984-0004| Tipo: Artigo em Periódico Indexado | Circulação/Nível: -- - -- |
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| Registros recuperados : 497 | |
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