Use este identificador para citar ou linkar para este 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.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.citationScientia Agricola, Piracicaba, v. 63, n. 2, p. 153-160, mar./abr. 2006.pt_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.language.isoengeng
dc.rightsopenAccesseng
dc.subjectPatógeno de solopt_BR
dc.subjectSolo supressivopt_BR
dc.subjectFatores bióticospt_BR
dc.subjectFatores abióticospt_BR
dc.subjectCorrelaçãopt_BR
dc.subjectSupressividadept_BR
dc.titleBiotic and abiotic factors associated with soil supressiveness to Rhizoctonia solani.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2015-08-31T11:11:11Zpt_BR
dc.subject.thesagroControle biológicopt_BR
dc.subject.thesagroMicrobiologia do Solopt_BR
dc.subject.nalthesaurusRhizoctoniapt_BR
riaa.ainfo.id15380pt_BR
riaa.ainfo.lastupdate2015-08-31pt_BR
dc.contributor.institutionRAQUEL GHINI, CNPMA; MARCELO AUGUSTO BOECHAT MORANDI, CNPMA.pt_BR
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