RIAA
Vol. 3 No. 1 (2012)
Published 2012-01-16
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Artículos de Investigación

Effectiveness of the native strain of Bacillus subtilis as a suppressant agent of the nematode Meloidogyne spp knot in cultures of Capsicum annuum “piquillo pepper chili”

DOI: https://doi.org/10.22490/21456453.931
Nancy Mercedes Soto Deza
Segundo Eloy López Medina
César Augusto Murguía Reyes
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In croping fields infested with nematodes, the RCBD complete blocks design was applied. 85% pure chicken manure was also incorporated, 15 t / ha and 30 t /. Spores of B. subtilis, 1 X106 eng / mL and 2 x 106 sperm / mL Capsicum annuum seeds in direct seeding were inoculated (experiment I) and transplantation (experiment II). At 45 and 90 days analysis of nematode populations were determined, nodulation index, plant height and fruit number. The data was subjected to analysis of variance using the Statgraphics Plus 5.0 software. To estimate the significant differences between treatments, the Tukey test was applied. Initially, the study showed highly infested knot nematode Meloidogyne spp., 275 to 27720 soil nematodes/100 cm3, and in Trial II it was between 9 and 1 nematodes/100 cm3 of soil, with significant difference (P & 0.05). The final population recorded after the application of Bacillus subtilis, was 13 and 0 nematodes/100 cm3 of soil, the nematode  population levels, decreased significantly, showing significant difference (P & 0.05). Efficacy of B. subtilis on Meloidogyne spp., it was clear, reduced initial populations of the nematode, reaching a reproduction rate less than 1, non-galling index reached grade 3. The interaction of B. subtilis with poultry manure amendment favored the production achieved in the cultivation of Capsicum annuum.

keywords: Bacillus subtilis, poultry manure, Meloidogyne spp., Capsicum annuum, biological control.
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How to Cite

Soto Deza, N. M., López Medina, S. E., & Murguía Reyes, C. A. (2012). Effectiveness of the native strain of Bacillus subtilis as a suppressant agent of the nematode Meloidogyne spp knot in cultures of Capsicum annuum “piquillo pepper chili”. Revista De Investigación Agraria Y Ambiental, 3(1), 25-40. https://doi.org/10.22490/21456453.931
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