Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/212442
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dc.contributor.authorCOSTA, J. L. da S.pt_BR
dc.contributor.authorMENGE, J. A.pt_BR
dc.contributor.authorCASALE, W. L.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2004-07-29pt_BR
dc.date.issued2000pt_BR
dc.identifier.citationBrazilian Journal of Microbiology, v. 31, n. 4, p. 239-246, Oct./Dec. 2000.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/212442pt_BR
dc.descriptionOrganic mulches colonized with microbial biocontrol agents, termed bioenhanced mulches, were tested for their ability to reduce Phytophthora root rot of avocado (Persea americana Mill.). Benomyl-resistant mutants of Gliocladium virens (KA 230-1) and Trichoderma harzianum (KA 159.2) isolated from suppressive soils and selected as efficient antagonists of P. cinnamomi were evaluated for their ability to colonize different mulches under controlled laboratory conditions. Sudangrass and a coarse yardwaste were found to be better substrates than a fine yardwaste, woodwaste or rice hulls for biocontrol agents propagules production. The most suitable conditions for colonization were an optimum temperature of 24°C, a moisture content of 20% for sudangrass and 30% for the coarse yardwaste, and a continuous light exposure during a 15-day incubation period. In the greenhouse, fresh sudangrass and a coarse yardwaste colonized with G. virens and used as a surface mulch proved to be the best combination for reducing the population of P. cinnamomi in 4-liter pots containing artificially-infested soil. Healthy avocado roots made up 31-37% of the roots in the G. virens-mulch combinations compared to 0% healthy in infested controls after two months.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectPhytophthora cinnamonipt_BR
dc.subjectGliocladium virenspt_BR
dc.subjectAvocadopt_BR
dc.titleBiological control of Phytophthora root rot of avocado with microorganisms grown in organic mulches.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-06-07T11:11:11Zpt_BR
dc.subject.thesagroTrichoderma Harzianumpt_BR
riaa.ainfo.id212442pt_BR
riaa.ainfo.lastupdate2013-06-07pt_BR
dc.identifier.doihttps://doi.org/10.1590/S1517-83822000000400002eng
dc.contributor.institutionJEFFERSON LUIS DA SILVA COSTA, CNPAF; JOHN A. MENGE; WILLIAN L. CASALE.pt_BR
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