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Registros recuperados : 5 | |
Registros recuperados : 5 | |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
19/11/2001 |
Data da última atualização: |
11/12/2018 |
Autoria: |
ALMEIDA, A. M. R.; SARAIVA, O. F.; FARIAS, J. R. B.; TORRES, E. |
Afiliação: |
ALVARO MANUEL RODRIGUES ALMEIDA, CNPSO; ODILON FERREIRA SARAIVA, CNPSO; JOSE RENATO BOUCAS FARIAS, CNPSO; Eleno Torres, CNPSO. |
Título: |
Survival of pathogens on soybean debris under no-tillage and conventional tillage systems. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 10, p. 1231-38, out. 2001 |
Idioma: |
Inglês |
Notas: |
Título em português: Sobrevivência de patógenos em restos de cultura de soja mantidos em sistema de semeadura direta e convencional. |
Conteúdo: |
A study was conducted in the subtropical area of Southern Brazil to determine the survival of pathogens in soybean residues under conventional and no-tillage cultivation systems from March to September of 1998 and 1999. The pathogens most frequently isolated were Colletotrichum truncatum, Phomopsis spp., Cercospora kikuchii, Fusarium spp., Macrophomina phaseolina, and Rhizoctonia solani. Other fungi isolated were Myrothecium roridum, Penicillium sp., Chaetomium sp., Epicoccum sp., Corynespora cassiicola and Trichoderma sp. The percent of survival of each pathogen varied according to the month and the year. Survival of C. truncatum, Phomopsis spp. and C. kikuchii were significantly reduced (p<0.05) from the first to the last evaluation either on buried debris or maintained on the soil surface. On the other hand, M. phaseolina and Fusarium spp. were either not affected or favored by burying the debris. The frequency of recovery of Fusarium spp. Increased specially in debris kept under the soil. The loss of biomass, measured by debris weight along the period of this study, showed a reduction of 44.4% in the conventional system and 34.9% in the no-tillage system in 1998, when rain was better distributed. In 1999, the reduction was 48.2% and 39.0% for the conventional and no-tillage system, respectively. |
Palavras-Chave: |
Cultivation; cultivo; degradação; doenças das plantas; plant diseases; resíduos de colheita. |
Thesagro: |
Biomassa. |
Thesaurus NAL: |
biomass; crop residues; degradation. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/20887/1/1231.pdf
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Marc: |
LEADER 02263naa a2200289 a 4500 001 1085350 005 2018-12-11 008 2001 bl uuuu u00u1 u #d 100 1 $aALMEIDA, A. M. R. 245 $aSurvival of pathogens on soybean debris under no-tillage and conventional tillage systems. 260 $c2001 500 $aTítulo em português: Sobrevivência de patógenos em restos de cultura de soja mantidos em sistema de semeadura direta e convencional. 520 $aA study was conducted in the subtropical area of Southern Brazil to determine the survival of pathogens in soybean residues under conventional and no-tillage cultivation systems from March to September of 1998 and 1999. The pathogens most frequently isolated were Colletotrichum truncatum, Phomopsis spp., Cercospora kikuchii, Fusarium spp., Macrophomina phaseolina, and Rhizoctonia solani. Other fungi isolated were Myrothecium roridum, Penicillium sp., Chaetomium sp., Epicoccum sp., Corynespora cassiicola and Trichoderma sp. The percent of survival of each pathogen varied according to the month and the year. Survival of C. truncatum, Phomopsis spp. and C. kikuchii were significantly reduced (p<0.05) from the first to the last evaluation either on buried debris or maintained on the soil surface. On the other hand, M. phaseolina and Fusarium spp. were either not affected or favored by burying the debris. The frequency of recovery of Fusarium spp. Increased specially in debris kept under the soil. The loss of biomass, measured by debris weight along the period of this study, showed a reduction of 44.4% in the conventional system and 34.9% in the no-tillage system in 1998, when rain was better distributed. In 1999, the reduction was 48.2% and 39.0% for the conventional and no-tillage system, respectively. 650 $abiomass 650 $acrop residues 650 $adegradation 650 $aBiomassa 653 $aCultivation 653 $acultivo 653 $adegradação 653 $adoenças das plantas 653 $aplant diseases 653 $aresíduos de colheita 700 1 $aSARAIVA, O. F. 700 1 $aFARIAS, J. R. B. 700 1 $aTORRES, E. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 36, n. 10, p. 1231-38, out. 2001
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