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Revista Caatinga

Print version ISSN 0100-316XOn-line version ISSN 1983-2125

Abstract

BONTEMPO, AMANDA FERREIRA et al. DOSE-RESPONSE EFFECT OF Pochonia chlamydosporia AGAINST Meloidogyne incognita ON CARROT UNDER FIELD CONDITIONS. Rev. Caatinga [online]. 2017, vol.30, n.1, pp.258-262. ISSN 0100-316X.  https://doi.org/10.1590/1983-21252017v30n129rc.

The application of a bionematicide based on chlamydospores of Pochonia chlamydosporia (Pc-10) can be an important strategy for reducing the damage caused by Meloidogyne incognita on carrot. Based on this perspective, the nematicidal effects of 0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 kg ha -1 of Pc-10 were evaluated on carrot cv. Juliana under field conditions. Carrot yield and nematode population were influenced by increasing doses of Pc-10. The application of 3.0 kg ha-1 of Pc-10 increased the marketable production of carrot roots by 41.7% compared to the untreated control, whereas the production of unmarketable roots and the nematode population in the soil were reduced by 48.7% and 61.4%. The application of 3.0 kg ha -1 of Pc-10 reduces M. incognita population and improves carrot quality and yield.

Keywords : Biological control; Daucus carota; Nematophagous fungus; Root-knot nematode..

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