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.

Keywords: Liquid formulation, Plant growth promotion, Pseudomonas fluorescens, Root knot nematode,