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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
25/01/2006 |
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Data da última atualização: |
25/01/2006 |
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Autoria: |
GODOY, C. V.; AMORIM, L.; BERGAMIN FILHO, A.; SILVA, H. P.; SILVA, W. J.; BERGER, R. D. |
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Título: |
Temporal progress of southern rust in maize under different environmental conditions. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 28, n. 3, p. 273-278, maio/jun. 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
The progress of the severity of southern rust in maize (Zea mays) caused by Puccinia polysora was quantified in staggered plantings in different geographical areas in Brazil, from October to May, over two years (1995-1996 and 1996-1997). The logistic model, fitted to the data, better described the disease progress curves than the Gompertz model. Four components of the disease progress curves (maximum disease severity; area under the disease progress curve, AUDPC; area under the disease progress curve around the inflection point, AUDPCi; and epidemic rate) were used to compare the epidemics in different areas and at different times of planting. The AUDPC, AUDPCi, and the epidemic rate were analyzed in relation to the weather (temperature, relative humidity, hours of relative humidity >90%, and rainfall) and recorded during the trials. Disease severity reached levels greater than 30% in Piracicaba and Guaíra in the plantings between December and January. Lower values of AUDPC occurred in later plantings at both locations. The epidemic rate was positively correlated (P < 0.05) with the mean daily temperatures and negatively correlated with hours of relative humidity >90%. The AUDPC was not correlated with any weather variable. The AUDPCi was negatively related to both variables connected to humidity, but not to rain. Long periods (mostly >13 h day-1) of relative humidity >90% (that corresponded to leaf wetness) occurred in Castro. Severity of southern rust in maize has always been low in Castro, thus the negative correlations between disease and the two humidity variables. MenosThe progress of the severity of southern rust in maize (Zea mays) caused by Puccinia polysora was quantified in staggered plantings in different geographical areas in Brazil, from October to May, over two years (1995-1996 and 1996-1997). The logistic model, fitted to the data, better described the disease progress curves than the Gompertz model. Four components of the disease progress curves (maximum disease severity; area under the disease progress curve, AUDPC; area under the disease progress curve around the inflection point, AUDPCi; and epidemic rate) were used to compare the epidemics in different areas and at different times of planting. The AUDPC, AUDPCi, and the epidemic rate were analyzed in relation to the weather (temperature, relative humidity, hours of relative humidity >90%, and rainfall) and recorded during the trials. Disease severity reached levels greater than 30% in Piracicaba and Guaíra in the plantings between December and January. Lower values of AUDPC occurred in later plantings at both locations. The epidemic rate was positively correlated (P < 0.05) with the mean daily temperatures and negatively correlated with hours of relative humidity >90%. The AUDPC was not correlated with any weather variable. The AUDPCi was negatively related to both variables connected to humidity, but not to rain. Long periods (mostly >13 h day-1) of relative humidity >90% (that corresponded to leaf wetness) occurred in Castro. Severity of southern rust in maize has always b... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02146naa a2200181 a 4500
001 1468885
005 2006-01-25
008 2003 bl uuuu u00u1 u #d
100 1 $aGODOY, C. V.
245 $aTemporal progress of southern rust in maize under different environmental conditions.
260 $c2003
520 $aThe progress of the severity of southern rust in maize (Zea mays) caused by Puccinia polysora was quantified in staggered plantings in different geographical areas in Brazil, from October to May, over two years (1995-1996 and 1996-1997). The logistic model, fitted to the data, better described the disease progress curves than the Gompertz model. Four components of the disease progress curves (maximum disease severity; area under the disease progress curve, AUDPC; area under the disease progress curve around the inflection point, AUDPCi; and epidemic rate) were used to compare the epidemics in different areas and at different times of planting. The AUDPC, AUDPCi, and the epidemic rate were analyzed in relation to the weather (temperature, relative humidity, hours of relative humidity >90%, and rainfall) and recorded during the trials. Disease severity reached levels greater than 30% in Piracicaba and Guaíra in the plantings between December and January. Lower values of AUDPC occurred in later plantings at both locations. The epidemic rate was positively correlated (P < 0.05) with the mean daily temperatures and negatively correlated with hours of relative humidity >90%. The AUDPC was not correlated with any weather variable. The AUDPCi was negatively related to both variables connected to humidity, but not to rain. Long periods (mostly >13 h day-1) of relative humidity >90% (that corresponded to leaf wetness) occurred in Castro. Severity of southern rust in maize has always been low in Castro, thus the negative correlations between disease and the two humidity variables.
700 1 $aAMORIM, L.
700 1 $aBERGAMIN FILHO, A.
700 1 $aSILVA, H. P.
700 1 $aSILVA, W. J.
700 1 $aBERGER, R. D.
773 $tFitopatologia Brasileira, Brasília, DF$gv. 28, n. 3, p. 273-278, maio/jun. 2003.
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Registro original: |
Embrapa Soja (CNPSO) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/11/2008 |
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Data da última atualização: |
29/01/2013 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
KNUPP, A. M.; FARIA, J. C. de; RUMJANEK, N. G.; XAVIER, G. R. |
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Afiliação: |
ADRIANO MOREIRA KNUPP, UFRRJ; JOSIAS CORREA DE FARIA, CNPAF; NORMA GOUVEA RUMJANEK, CNPAB; GUSTAVO RIBEIRO XAVIER, CNPAB. |
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Título: |
Avaliação de biossegurança de transgênico por DGGE: estudo de caso do feijão VMDF, evento M1-4. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: resumos. Londrina: Embrapa Soja: SBCS: IAPAR, UEL, 2008. |
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Páginas: |
p. 211. |
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Idioma: |
Português |
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Notas: |
Resumo 1133. |
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Palavras-Chave: |
Transgênico; VMDF. |
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Thesagro: |
Biossegurança; Feijão; Phaseolus Vulgaris. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/74592/1/Knupp1.pdf
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Marc: |
LEADER 00941nam a2200217 a 4500
001 1217485
005 2013-01-29
008 2008 bl uuuu u00u1 u #d
100 1 $aKNUPP, A. M.
245 $aAvaliação de biossegurança de transgênico por DGGE$bestudo de caso do feijão VMDF, evento M1-4.
260 $aIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: resumos. Londrina: Embrapa Soja: SBCS: IAPAR, UEL$c2008
300 $ap. 211.
500 $aResumo 1133.
650 $aBiossegurança
650 $aFeijão
650 $aPhaseolus Vulgaris
653 $aTransgênico
653 $aVMDF
700 1 $aFARIA, J. C. de
700 1 $aRUMJANEK, N. G.
700 1 $aXAVIER, G. R.
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Embrapa Arroz e Feijão (CNPAF) |
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