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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
18/12/2009 |
Data da última atualização: |
08/06/2022 |
Autoria: |
ROUSSEAU, G. X.; RIOUX, S.; DOSTALER, D. |
Afiliação: |
GUILLAUME X. ROUSSEAU, CPATU; SYLVIE RIOUX, CEROM; DANIEL DOSTALER, Université Laval. |
Título: |
Multivariate effects of plant canopy, soil physico-chemistry and microbiology on Sclerotinia stem rot of soybean in relation to crop rotation and urban compost amendment. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Soil Biology & Biochemistry, v. 38, n. 12, p. 3325-3342, Dec. 2006. |
DOI: |
10.106/j.soilbio.2006.04.054 |
Idioma: |
Inglês |
Conteúdo: |
The effects of canopy, soil physico-chemical and microbiological variables on Sclerotinia stem rot (SSR) on soybean were assessed in two soils (clay loam and sandy loam) using multiple regression and canonical redundancy analysis (RDA) and their partial form to control for the rotation (2 or 3-y-corn/soybean monoculture) and fertilization (mineral/urban compost) or spatial variables effects. The models revealed the minimal sets of variables that best explain the variance of the survival of Sclerotinia sclerotiorum?s sclerotia, carpogenic germination, disease severity and their associations. In clay loam, the 3-y-corn rotation reduced disease severity mainly through the reduction of weed biomass that favoured carpogenic germination. Urban compost has a conducive effect explained by a better soil surface drainage. Additionally, total N was found suppressive to sclerotial survival. In sandy loam, the carpogenic germination was negatively correlated with high C mineralization quotient and aggregate stability but correlated positively with Ca. Sclerotial survival was negatively correlated with pH and Ca, and positively correlated with biological fertility index. Aggregate stability, Ca and pH were associated with the urban compost. The regression and RDA analyses allowed to identify key variables that drived SSR development and explain their relationship with the cultural practices, soil health, as well as the spatial variation of disease variables. |
Palavras-Chave: |
Soybean. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02083naa a2200169 a 4500 001 1578449 005 2022-06-08 008 2006 bl uuuu u00u1 u #d 024 7 $a10.106/j.soilbio.2006.04.054$2DOI 100 1 $aROUSSEAU, G. X. 245 $aMultivariate effects of plant canopy, soil physico-chemistry and microbiology on Sclerotinia stem rot of soybean in relation to crop rotation and urban compost amendment.$h[electronic resource] 260 $c2006 520 $aThe effects of canopy, soil physico-chemical and microbiological variables on Sclerotinia stem rot (SSR) on soybean were assessed in two soils (clay loam and sandy loam) using multiple regression and canonical redundancy analysis (RDA) and their partial form to control for the rotation (2 or 3-y-corn/soybean monoculture) and fertilization (mineral/urban compost) or spatial variables effects. The models revealed the minimal sets of variables that best explain the variance of the survival of Sclerotinia sclerotiorum?s sclerotia, carpogenic germination, disease severity and their associations. In clay loam, the 3-y-corn rotation reduced disease severity mainly through the reduction of weed biomass that favoured carpogenic germination. Urban compost has a conducive effect explained by a better soil surface drainage. Additionally, total N was found suppressive to sclerotial survival. In sandy loam, the carpogenic germination was negatively correlated with high C mineralization quotient and aggregate stability but correlated positively with Ca. Sclerotial survival was negatively correlated with pH and Ca, and positively correlated with biological fertility index. Aggregate stability, Ca and pH were associated with the urban compost. The regression and RDA analyses allowed to identify key variables that drived SSR development and explain their relationship with the cultural practices, soil health, as well as the spatial variation of disease variables. 653 $aSoybean 700 1 $aRIOUX, S. 700 1 $aDOSTALER, D. 773 $tSoil Biology & Biochemistry$gv. 38, n. 12, p. 3325-3342, Dec. 2006.
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Biblioteca(s): Embrapa Clima Temperado. |
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6. | | COMEAU, A.; LANGEVIN, F.; SCHEEREN, P. L.; RIOUX, S.; VOLDENG, H.; BLACKWELL, B.; EUDES, F.; CAETANO, V. da R.; DION, Y. A systemic approach to incorporate the highest levels of FHB resistance with agronomic merit and quality in wheat. In: INTERNATIONAL SYMPOSIUM ON FUSARIUM HEAD BLIGHT, 5.; INTERNATIONAL WORKSHOP ON WHEAT BLAST, 2., 2016, Florianópolis. Book of abstracts... Passo Fundo: Ed. Universidade de Passo Fundo: Embrapa Trigo; Viçosa, MG: Universidade Federal de Viçosa, 2016. p. 28, sess. 1, abst. P5. 5th International Symposium on Fusarium Head Blight.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado; Embrapa Trigo. |
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7. | | COMEAU, A.; LANGEVIN, F.; CAETANO, V. da R.; HABER, S.; SAVARD, M. E.; VOLDENG, H.; FEDAK, G.; DION, Y.; RIOUX, S.; GILBERT, J.; SOMERS, D.; MARTIN, R. A.; SCHEEREN, P. L. A different path to the summit of fusarium head blight resistance in wheat: developing germplasm with a systemic approach. In: EUROPEAN FUSARIUM SEMINAR 'FUSARIUM - MYCOTOXINS, TAXONOMY, PATHOGENICITY AND HOST RESISTANCE', 11., 2010, Radzików. Book of Abstracts Radzików: IHAR, 2010. p. 75-76Tipo: Resumo em Anais de Congresso |
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