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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
18/12/2009 |
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Data da última atualização: |
08/06/2022 |
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Autoria: |
ROUSSEAU, G. X.; RIOUX, S.; DOSTALER, D. |
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Afiliação: |
GUILLAUME X. ROUSSEAU, CPATU; SYLVIE RIOUX, CEROM; DANIEL DOSTALER, UNIVERSITÉ LAVAL. |
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Título: |
Partitioning the spatial and environmental variation of Sclerotinia stem rot on soybean. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, v. 38, n. 12, p. 3343-3358, Dec. 2006. |
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DOI: |
10.1016/j.soilbio.2006.04.052 |
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Idioma: |
Inglês |
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Conteúdo: |
The variance in survival of Sclerotinia sclerotiorum's sclerotia, carpogenic germination (apothecia) as well as Sclerotinia stem rot (SSR) severity (Disease Severity Index (DSI)) on soybean was partitioned among canopy, soil physico-chemistry and microbiology, cultural practices (2 or 3-y-corn rotation/soybean monoculture and mineral fertilization/urban compost), and spatial matrices in two soils. Partial multiple regression was used to partition the individual SSR variables variance while partial canonical redundancy analysis partitioned the DSI?apothecia and apothecia?survival variance. In clay loam, the sclerotial survival and apothecia variance were mainly explained by the spatial structure of soil physico-chemistry while the DSI did not share this spatial structure and was largely explained by the effects of 3-y-corn rotation on canopy and soil, i.e. lower weed biomass, enhanced soybean yield and fewer apothecia were correlated with disease suppressiveness. In sandy loam, the DSI variance was mostly explained by the spatial structure of canopy and physico-chemistry. Disease suppressiveness, by the interaction of 3-y-corn rotation with urban compost, was largely explained by the enhancement of soil properties, i.e. higher aggregate stability, microbial activity and soil solution concentration in exchangeable ions correlated negatively with carpogenic germination. Partitioning the SSR variance among four matrices of spatial and environmental factors allowed for the first time to interpret and quantify the variance of disease development explained by cultural practices in interaction with the main characteristics of this agroecosystem. MenosThe variance in survival of Sclerotinia sclerotiorum's sclerotia, carpogenic germination (apothecia) as well as Sclerotinia stem rot (SSR) severity (Disease Severity Index (DSI)) on soybean was partitioned among canopy, soil physico-chemistry and microbiology, cultural practices (2 or 3-y-corn rotation/soybean monoculture and mineral fertilization/urban compost), and spatial matrices in two soils. Partial multiple regression was used to partition the individual SSR variables variance while partial canonical redundancy analysis partitioned the DSI?apothecia and apothecia?survival variance. In clay loam, the sclerotial survival and apothecia variance were mainly explained by the spatial structure of soil physico-chemistry while the DSI did not share this spatial structure and was largely explained by the effects of 3-y-corn rotation on canopy and soil, i.e. lower weed biomass, enhanced soybean yield and fewer apothecia were correlated with disease suppressiveness. In sandy loam, the DSI variance was mostly explained by the spatial structure of canopy and physico-chemistry. Disease suppressiveness, by the interaction of 3-y-corn rotation with urban compost, was largely explained by the enhancement of soil properties, i.e. higher aggregate stability, microbial activity and soil solution concentration in exchangeable ions correlated negatively with carpogenic germination. Partitioning the SSR variance among four matrices of spatial and environmental factors allowed for the first ... Mostrar Tudo |
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Palavras-Chave: |
Cropping practices; Plant canopy; Soil microbiology; Soybean. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02297naa a2200205 a 4500
001 1578446
005 2022-06-08
008 2006 bl uuuu u00u1 u #d
024 7 $a10.1016/j.soilbio.2006.04.052$2DOI
100 1 $aROUSSEAU, G. X.
245 $aPartitioning the spatial and environmental variation of Sclerotinia stem rot on soybean.$h[electronic resource]
260 $c2006
520 $aThe variance in survival of Sclerotinia sclerotiorum's sclerotia, carpogenic germination (apothecia) as well as Sclerotinia stem rot (SSR) severity (Disease Severity Index (DSI)) on soybean was partitioned among canopy, soil physico-chemistry and microbiology, cultural practices (2 or 3-y-corn rotation/soybean monoculture and mineral fertilization/urban compost), and spatial matrices in two soils. Partial multiple regression was used to partition the individual SSR variables variance while partial canonical redundancy analysis partitioned the DSI?apothecia and apothecia?survival variance. In clay loam, the sclerotial survival and apothecia variance were mainly explained by the spatial structure of soil physico-chemistry while the DSI did not share this spatial structure and was largely explained by the effects of 3-y-corn rotation on canopy and soil, i.e. lower weed biomass, enhanced soybean yield and fewer apothecia were correlated with disease suppressiveness. In sandy loam, the DSI variance was mostly explained by the spatial structure of canopy and physico-chemistry. Disease suppressiveness, by the interaction of 3-y-corn rotation with urban compost, was largely explained by the enhancement of soil properties, i.e. higher aggregate stability, microbial activity and soil solution concentration in exchangeable ions correlated negatively with carpogenic germination. Partitioning the SSR variance among four matrices of spatial and environmental factors allowed for the first time to interpret and quantify the variance of disease development explained by cultural practices in interaction with the main characteristics of this agroecosystem.
653 $aCropping practices
653 $aPlant canopy
653 $aSoil microbiology
653 $aSoybean
700 1 $aRIOUX, S.
700 1 $aDOSTALER, D.
773 $tSoil Biology & Biochemistry$gv. 38, n. 12, p. 3343-3358, Dec. 2006.
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Embrapa Amazônia Oriental (CPATU) |
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| 4. |  | SOARES, D. S.; FERNANDES, D. S.; HEINEMANN, A. B. Eventos extremos de condições de umidade e suas influências na produtividade do arroz de terras altas no sudoeste goiano. In: CONGRESSO BRASILEIRO DE METEOROLOGIA, 17.; ENCONTRO DE METEOROLOGIA DOS PAÍSES DO MERCOSUL E ASSOCIADOS, 1.; ENCONTRO SUL AMERICANO DE APLICAÇÕES DO SISTEMA EUMETCast PARA O MONITORAMENTO METEOROLÓGICO E AMBIENTAL, 4.; ENCONTRO DE METEOROLOGIA OPERACIONAL, 2., 2012, Gramado. Anais: programa. Gramado: UFRGS, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 10. | | FERNANDES, K. L.; FERNANDES, D. S.; HEINEMANN, A. B. Variação da produtividade do arroz de terras altas influenciados pela seca meteorológica em Goiás. In: CONGRESSO BRASILEIRO DE METEOROLOGIA, 17.; ENCONTRO DE METEOROLOGIA DOS PAÍSES DO MERCOSUL E ASSOCIADOS, 1.; ENCONTRO SUL AMERICANO DE APLICAÇÕES DO SISTEMA EUMETCast PARA O MONITORAMENTO METEOROLÓGICO E AMBIENTAL, 4.; ENCONTRO DE METEOROLOGIA OPERACIONAL, 2., 2012, Gramado. Anais: programa. Gramado: UFRGS, 2012.| Tipo: Artigo em Anais de Congresso |
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| 15. | | FERNANDES, D. S.; SORATTO, R. P.; KULCZYNSKI, S. M.; BISCARO, G. A.; REIS, C. J. dos. Produtividade e qualidade fisiológica de sementes de feijão em conseqüência da aplicação foliar de manganês. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 3, p. 419-426, mar. 2007 Título em inglês: Yield and physiological quality of common bean seeds as affected by manganese foliar application.| Biblioteca(s): Embrapa Unidades Centrais. |
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