Viability of Pseudomonas fluorescens in Liquid Formulation and its Effect on Plant Growth Promotion and Inhibition of Root Knot Nematode, Meloidogyne incognita
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Author:K. Sankari Meena, E. I. Jonathan and P.G. Kavitha
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:99, Issue:oct-dec
DOI: https://doi.org/10.29321/MAJ.10.100210
Abstract
Viability of the Pfbv 22 isolate of Pseudomonas fluorescens in liquid formulation amended with
different chemicals was studied. Among amendments tested, the liquid formulation of P.
fluorescens, Pfbv 22 isolate amended with glycerol (10mM) maintained maximum viability
nearly for a year. In the plant growth promotion study conducted with different aged isolates
of Pfbv 22 on tomato, the five day old culture recorded a maximum vigour index (3179.56).
Results of the in vitro study carried out with different aged cultures of Pfbv 22 on eggs and
juveniles of M. incognita revealed maximum suppression in egg hatching and minimum
juvenile morality in the same five day old culture when compared with other aged cultures.
Key words : Liquid formulation, Plant growth promotion, Pseudomonas fluorescens, Root knot nematode,
