Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/15380
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dc.contributor.authorGHINI, R.pt_BR
dc.contributor.authorMORANDI, M. A. B.pt_BR
dc.contributor.otherRAQUEL GHINI, CNPMA; MARCELO AUGUSTO BOECHAT MORANDI, CNPMA.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2007-05-14pt_BR
dc.date.issued2006pt_BR
dc.identifier.other6793pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/15380pt_BR
dc.descriptionCrop management may modify soil characteristics, and as a consequence, alter incidence of diseases caused by soilborne pathogens. This study evaluated the suppressiveness to R. solani in 59 soil samples from a microbasin. Soil sampling areas included undisturbed forest, pasture and fallow ground areas, annual crops, perennial crops, and ploughed soil. The soil samples were characterized according to abiotic variables (pH; electrical conductivity; organic matter content; N total; P; K; Ca; Mg; Al; H; S; Na; Fe; Mn; Cu; Zn; B; cation exchange capacity; sum of bases and base saturation) and biotic variables (total microbial activity evaluated by the CO2 evolution and fluorescein diacetate hydrolysis; culturable bacterial, fungal, actinomycetes, protozoa, fluorescent Pseudomonas and Fusarium spp. communities). The contribution and relationships of these variables to suppression to R. solani were assessed by path analysis. When all samples were analyzed together, only abiotic variables correlated with suppression of R. solani, but the entire set of variables explained only 51% of the total variation. However, when samples were grouped and analyzed by vegetation cover, the set of evaluated variables in all cases accounted for more than 90% of the variation in suppression of the pathogen. In highly suppressive soils of forest and pasture/ fallow ground areas, several abiotic variables and fluorescein diacetate hydrolysis correlated with suppression of R. solani and the set of variables explained more than 98% of suppressiveness.pt_BR
dc.description.uribitstream/item/125709/1/2006AP-019.pdfpt_BR
dc.languageenpt_BR
dc.language.isoengeng
dc.publisherScientia Agricola, Piracicaba, v. 63, n. 2, p. 153-160, mar./abr. 2006.pt_BR
dc.relation.ispartofEmbrapa Meio Ambiente - Artigo em periódico indexado (ALICE)pt_BR
dc.subjectPatógeno de solopt_BR
dc.subjectSolo supressivopt_BR
dc.subjectFatores bióticospt_BR
dc.subjectFatores abióticospt_BR
dc.subjectCorrelaçãopt_BR
dc.subjectSupressividade.pt_BR
dc.titleBiotic and abiotic factors associated with soil supressiveness to Rhizoctonia solani.pt_BR
dc.typeArtigo em periódico indexado (ALICE)pt_BR
dc.date.updated2015-08-31T11:11:11Zpt_BR
dc.subject.thesagroControle biológicopt_BR
dc.subject.thesagroMicrobiologia do Solo.pt_BR
dc.subject.nalthesaurusRhizoctonia.pt_BR
dc.ainfo.id15380pt_BR
dc.ainfo.lastupdate2015-08-31pt_BR
Appears in Collections:Artigo em periódico indexado (CNPMA)

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