42PLANT GROWTH PROMOTING PSEUDOMONAS STRAINS ISOLATED FROM RHIZOSPHERIC SOIL OF PEA PLANT IN DEHRADUN, INDIAIn present study, 20 Pseudomonas strains were screened for their plant growth promoting activity i.e. siderophore production, hydrogen cyanide (HCN), indole acetic acid (IAA) and P-solubilization. Plant growth promoting activity was carried by standard methods. Pseudomonas strains produced IAA, HCN, siderophore and P-solubilization by 65, 85, 85, 80% respectively. Pseudomonas strains such as PSB2, PSB5, PSB7, PSB8, PSB16, PSB17, and PSB20 showed all the PGPR activity. The study showed that Pseudomonas as an effective plant growth promoting bacteriumvishal_deshwal@rediffmail.comResearch412014Pseudomonas,PGPR,Indole acetic acid,Hydrogen cyanide,SiderophoreVishal Kumar Deshwal,Surya Bhan SinghDept. of Microbiology, Doon (P.G.) Paramedical College, Dehradun, India.,Dept. of Microbiology Singhania University, Pachri Bari, Rajasthan, India.