Abstract :
The present work aimed to check the efficiency of various phosphate solubilizing microorganisms and their
effect on seed germination. In this study, nine different strains of fungi and bacteria were used. Aspergillus awamori NCIM 861, Aspergillus niger NCIM 1248, Aspergillus oryzae NCIM 641, Bacillus megaterium NCIM 2087, Bacilus polymyxa NCIM 2846, Bacillus sphericus NCIM 2478, Pseudomonas striata NCIM 2847, Trichoderma viridae NCIM 1051, Trichoderma ressie NCIM 992. Among these five strains were selected for seed germination studies based on TCP (Tri Calcium Phosphate) and RP (Rock Phosphate) solubilization. Phosphate solubilization was carried out with Pikovskaya medium for the determination
of the efficiency of all the PSMs. According to the results obtained from TCP and RP solubilization and seed germination experiments, it is found that Ps. striata is more efficient among all the used species in the study of phosphate solubilizers.
Keyword :
PSMs (Phosphate solubilizing microorganism), Strain, Phosphate solubilization, TCP Tricalcium phosphate,
RP Rock phosphate, Seed germination.