Resumo

DIAZ-DIAZ, Miriam et al. Actinomycetes, biological alternative on damping-off affectations caused by Rhizoctonia solani Kühn in common bean. Ctro. Agr. [online]. 2018, vol.45, n.2, pp. 5-11. ISSN 0253-5785.

ABSTRACT The effect of seed treatment with the actinomycetes strains EA2 and CB14, and their combination, on damping-off incidence caused by Rhizoctonia solani Kühn in Phaseolus vulgaris L. cv. Velasco largo was evaluated under greenhouse conditions. These strains were compared with Trichoderma harzianum A-34, Celest®Top 312 FS and two controls (positive and negative). Inceptisol sterile and non-sterile soil was used under a completely randomized design. The coating seeds with strains were made using 8 % cassava starch. The incidence of R. solani was determined 21 days after sowing. In non-sterile soil, the lowest incidences caused by R. solani were found with Celest®Top 312 FS, which did not significantly differ from the combination of actinomycete strains CB14 + EA2, but yes with the rest of the treatments. In the sterile soil, the lowest percentages of incidences were obtained with the combination of actinomycete strains (CB14 + EA2)

Palavras-chave : biological agents; fungi disease; Phaseolus vulgaris; seed coating.

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