It has been assumed that inoculation with bacteria like Bacillus, Pseudomonas,
Rhizobium, andAzotobactermay enhance the plant growth as a result of their ability to fix
nitrogen. All the bacterial isolates in the present study were able to produce catalase.
Bacterial strains showing catalase activity must be highly resistant to environmental,
mechanical, and chemical stress. Some of the above-tested isolates could exhibit more than
two or three PGP traits, which may promote plant growth directly or indirectly or
synergistically. Similar to ourfindings of multiple PGP activities among PGPR have been
reported by some other workers while such findings on indigenous isolates of India are less
commonly explored (Gupta et al., 1998).