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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
22/03/2008 |
Data da última atualização: |
25/10/2023 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
LEITE, L. F. C.; MENDONÇA, E. de S. |
Título: |
Perspectivas e limitações da modelagem da dinâmica da matéria orgânica dos solos tropicais. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: CERETTA, C. A.; SILVA, L. S. da; REICHERT, J. M. (Ed.). Tópicos em ciência do solo. Viçosa, MG: SBCS, 2007. |
Volume: |
v. 5 |
Páginas: |
p. 181-217 |
Idioma: |
Português |
Thesagro: |
Cobertura do Solo; Modelo Matemático. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00577naa a2200169 a 4500 001 1069726 005 2023-10-25 008 2007 bl uuuu u00u1 u #d 100 1 $aLEITE, L. F. C. 245 $aPerspectivas e limitações da modelagem da dinâmica da matéria orgânica dos solos tropicais. 260 $c2007 300 $ap. 181-217 v. 5 490 $vv. 5 650 $aCobertura do Solo 650 $aModelo Matemático 700 1 $aMENDONÇA, E. de S. 773 $tIn: CERETTA, C. A.; SILVA, L. S. da; REICHERT, J. M. (Ed.). Tópicos em ciência do solo. Viçosa, MG: SBCS, 2007.
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
01/11/2013 |
Data da última atualização: |
01/11/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
GERALDINE, A. M.; LOPES, F. A. C.; CARVALHO, D. D. C.; BARBOSA, E. T.; RODRIGUES, A. R.; BRANDÃO, R. S.; ULHOA, C. J.; LOBO JUNIOR, M. |
Afiliação: |
ALAERSON MAIA GERALDINE, UFG; FABYANO ALVARES CARDOSO LOPES, UFG; DANIEL DIEGO COSTA CARVALHO, UNB; ELDER TADEU BARBOSA, CNPAF; AMANDA RAFAELA RODRIGUES, UFG; RENATA SILVA BRANDÃO, UFG; CIRANO JOSÉ ULHOA, UFG; MURILLO LOBO JUNIOR, CNPAF. |
Título: |
Cell wall-degrading enzymes and parasitism of sclerotia are key factors on field biocontrol of white mold by Trichoderma spp. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Biological Control, Orlando, v. 67, n. 3, p. 308-316, Dec. 2013. |
DOI: |
http://dx.doi.org/10.1016/j.biocontrol.2013.09.013 |
Idioma: |
Inglês |
Conteúdo: |
Field outcomes of 10 Trichoderma spp. isolates against white mold (Sclerotinia sclerotiorum) on common beans were matched to laboratory results, to identify the causes of variance related to biocontrol effectiveness. Laboratory assays estimated sclerotia parasitism and production of the cell wall-degrading enzymes (CWDEs) lipase, NAGase, b-1,3-glucanase, b-glucosidase and protease. Field trials were carried out in 2009 and 2010 under a randomized block design and sprinkling irrigation, where 2 x 1012 spores mL -1 of each antagonist were applied to the plots at the early R5 stage. The density of S. sclerotiorum apothecia m -2 and disease severity were assessed, respectively at R7 and R8 stages, with yield and its components also estimated for each year. Field results were analyzed jointly by the Tukey?Kramer multiple comparison test, and all variables from both field and laboratory experiments were subjected to principal component analysis (PCA). In both years, isolates TR696 and TR356 of Trichoderma asperellum were effective in reducing apothecia density and disease severity. Biocontrol increased the number of pods per plant and yields up to 40% when compared to controls, even under higher disease pressure in 2010. PCA demonstrated in 2009 and 2010 that apothecia density, disease severity, NAGase, b-1,3-glucanase and number of pods were the main sources of the first component of variance. Such results suggest that the CWDEs NAGase and b-1,3-glucanase and sclerotia parasitism are key components of Trichoderma spp. action in biocontrol of S. sclerotiorum in the field, and may be used as markers to hasten the selection of new, promising isolates. MenosField outcomes of 10 Trichoderma spp. isolates against white mold (Sclerotinia sclerotiorum) on common beans were matched to laboratory results, to identify the causes of variance related to biocontrol effectiveness. Laboratory assays estimated sclerotia parasitism and production of the cell wall-degrading enzymes (CWDEs) lipase, NAGase, b-1,3-glucanase, b-glucosidase and protease. Field trials were carried out in 2009 and 2010 under a randomized block design and sprinkling irrigation, where 2 x 1012 spores mL -1 of each antagonist were applied to the plots at the early R5 stage. The density of S. sclerotiorum apothecia m -2 and disease severity were assessed, respectively at R7 and R8 stages, with yield and its components also estimated for each year. Field results were analyzed jointly by the Tukey?Kramer multiple comparison test, and all variables from both field and laboratory experiments were subjected to principal component analysis (PCA). In both years, isolates TR696 and TR356 of Trichoderma asperellum were effective in reducing apothecia density and disease severity. Biocontrol increased the number of pods per plant and yields up to 40% when compared to controls, even under higher disease pressure in 2010. PCA demonstrated in 2009 and 2010 that apothecia density, disease severity, NAGase, b-1,3-glucanase and number of pods were the main sources of the first component of variance. Such results suggest that the CWDEs NAGase and b-1,3-glucanase and sclerotia parasitism... Mostrar Tudo |
Thesagro: |
Feijão; Fungo; Phaseolus vulgaris; Sclerotinia sclerotiorum; Trichoderma. |
Thesaurus NAL: |
Biomarkers. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02583naa a2200289 a 4500 001 1970111 005 2013-11-01 008 2013 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/j.biocontrol.2013.09.013$2DOI 100 1 $aGERALDINE, A. M. 245 $aCell wall-degrading enzymes and parasitism of sclerotia are key factors on field biocontrol of white mold by Trichoderma spp.$h[electronic resource] 260 $c2013 520 $aField outcomes of 10 Trichoderma spp. isolates against white mold (Sclerotinia sclerotiorum) on common beans were matched to laboratory results, to identify the causes of variance related to biocontrol effectiveness. Laboratory assays estimated sclerotia parasitism and production of the cell wall-degrading enzymes (CWDEs) lipase, NAGase, b-1,3-glucanase, b-glucosidase and protease. Field trials were carried out in 2009 and 2010 under a randomized block design and sprinkling irrigation, where 2 x 1012 spores mL -1 of each antagonist were applied to the plots at the early R5 stage. The density of S. sclerotiorum apothecia m -2 and disease severity were assessed, respectively at R7 and R8 stages, with yield and its components also estimated for each year. Field results were analyzed jointly by the Tukey?Kramer multiple comparison test, and all variables from both field and laboratory experiments were subjected to principal component analysis (PCA). In both years, isolates TR696 and TR356 of Trichoderma asperellum were effective in reducing apothecia density and disease severity. Biocontrol increased the number of pods per plant and yields up to 40% when compared to controls, even under higher disease pressure in 2010. PCA demonstrated in 2009 and 2010 that apothecia density, disease severity, NAGase, b-1,3-glucanase and number of pods were the main sources of the first component of variance. Such results suggest that the CWDEs NAGase and b-1,3-glucanase and sclerotia parasitism are key components of Trichoderma spp. action in biocontrol of S. sclerotiorum in the field, and may be used as markers to hasten the selection of new, promising isolates. 650 $aBiomarkers 650 $aFeijão 650 $aFungo 650 $aPhaseolus vulgaris 650 $aSclerotinia sclerotiorum 650 $aTrichoderma 700 1 $aLOPES, F. A. C. 700 1 $aCARVALHO, D. D. C. 700 1 $aBARBOSA, E. T. 700 1 $aRODRIGUES, A. R. 700 1 $aBRANDÃO, R. S. 700 1 $aULHOA, C. J. 700 1 $aLOBO JUNIOR, M. 773 $tBiological Control, Orlando$gv. 67, n. 3, p. 308-316, Dec. 2013.
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