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Potencial de pseudomonas spp. fluorescentes para biocontrole de alternaria ricini em mamoneira BABT
Silva,Francisco de A.G. da; Peixoto,Cecília do N.; Assis,Sayonara M.P. de; Mariano,Rosa de L.R.; Padovan,Isaíras P..
The potential of fluorescent Pseudomonas spp. to control Alternaria leaf spot on castorbean, caused by Alternaria ricini, was studied under greenhouse conditions. Two periods for antagonist applications were tested: 48h before and simultaneously to the pathogen inoculation. Among the antagonists tested JA4 and BJ22 were the most effectives showing disease severity reduction of 20.9% and 17.8% respectively, when applied simultaneously. The effect of Pseudomonas spp. on the micelial growth and sporulation was also studied throughout three different methods (funel, streak and celophane). Inhibition of micelial growth and sporulation was observed. There was no correlation between in vitro and in vivo data. Antibiosis was showed as a mode of action for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Ricinus communis; Alternaria ricin; Controle biológico.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000100010
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