Abstract

CRISTOBAL ALEJO, Jairo et al. Glomus intraradices for the Control of Meloidogyne incognita (Kofoid & White) Chitwood under Protected Conditions. Fitosanidad [online]. 2010, vol.14, n.1, pp. 25-29. ISSN 1818-1686.

The effects of the inoculation with arbuscular micorrhizal fungus Glomus intraradices on tomato (Lycopersicon esculentum Mill.) cv. Maya were evaluated. Variables related to nematode reproduction such as number of galls per plant_1 (NA), number of females per g-1 of stained root (NF) and number of eggs per g_1 of blended root (NE) were estimated. Plant agronomic variables such as plant height (AH), fruit weight (FW), root weight (RW), root volume (RV) and plant dry weight (DW) were also evaluated. The variance analysis for the variables NA, NF, AH, FW, RW, RV and DW did not show significant differences among treatments. Significant difference was only observed on the variable NE. The variable NA was higher on the control plants with no inoculation of arbuscular micorrhizal Glomus intraradices with an average of 467 root-knots per plant; it was also observed that the plants treated with higher concentration of the inoculum showed lower number of root-knots per plant. In general, it was observed at least 39% lower knot-root formation on plants inoculated with the micorrhizal fungus.

Keywords : root-knot; tomato; micorrizha; fungus.

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