International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

International Journal of Chemical Studies

Vol. 6, Issue 2 (2018)
Nematicidal effect of certian bio-agents against root-knot nematode, (Meloidoygne incognita) [(kofoid and white) chitwood] on tomato


Author(s): T Sivakumar, P Balabaskar and K Sanjeev Kumar

Abstract: The results of the gram reaction and biochemical tests for the identification of the native isolates of P. fluorescens and B. cereus revealed that all the isolates produced similar results with regard to gram staining (negative), motility (positive), starch hydrolysis (negative), gelatin liquefaction (positive), fluoresent pigmentation (positive) and produced IAA, sidrophore and hydrogen cyanide with little variation. Among the isolates pf5 and Bc6 produced maximum quantity of IAA. All isolates of Paecilomyces lilacinus, colony characters were observed in similar. The morphological characters of M. incognita were observed similar. The culture filtrates of P. fluorescens, B.cereus and P. lilacinus at all conc. caused root-knot nematode mortality and reduced egg hatch count. Maximum inhibition of egg hatch was observed with P. lilacinus at 40 per cent conc. followed by P. fluorescens and. B. cereus. The culture filtrate of P. liacinus isolates was found to posses nematicidal action on second stage juveniles (J2) of M. incognita.

Pages: 3161-3166  |  256 Views  7 Downloads

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How to cite this article:
T Sivakumar, P Balabaskar, K Sanjeev Kumar. Nematicidal effect of certian bio-agents against root-knot nematode, (Meloidoygne incognita) [(kofoid and white) chitwood] on tomato. Int J Chem Stud 2018;6(2):3161-3166.
International Journal of Chemical Studies