Plant growth-promoting bacteria (PGPB) have gained attention as important contributors to soil fertility and crop productivity as a result of the hunt for environmentally friendly substitutes for chemical fertilizers. In order to isolate and assess PGPB for possible agricultural uses, soil samples were gathered from Churu, Rajasthan, an arid desert region. Gram-negative and catalase-positive isolates were all acquired, indicating that they had adapted to the harsh conditions of the desert. Important PGP characteristics such as the production of indole-3-acetic acid (IAA), phosphate solubilization, siderophore production, nitrate reduction, and urease activity were screened for in the strains.

The findings indicated that IAA production was the most prevalent characteristic, although urease activity and nitrate reduction were also frequently noted. A subset of strains exhibited siderophore production and phosphate solubilization, suggesting variation in their functional capacities. The most effective strains among all the isolates were found to be CH2d and CH2e, which expressed every PGP trait that was tested.