摘要:Twenty-four bacterial strains were isolated from rhizosphere and histoplane of four different arid plants, Trianthema partulacastrum , Rumex dentatus , Chenopodium morale and Coronopus didymus . These bacteria were inoculated to seeds of Vigna radiata var NM-92 which were germinated and grown for 15 days. Majority of strains had inhibitory effect on seed germination (2.2 to 13.0%). The increase in seedling length ranged from 17 to 38% with different inoculations. Bacterial strains TP1, TP3, TP4, RTP4 and RRD1 were the most effective ones for the different growth parameters such as seed length and seed weight whereas the most adverse effects were recorded with the inoculation of TP17 strain. Maximum increase in protein and auxin content was observed with strains TP5 and RCM2, respectively. Peroxidase and acid phosphatase showed maximum activity with the inoculation of strain TP1.