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Plant growth promoting potential of bacteria. a Acetylene reduction activity (ARA) of thirteen isolates. N1: Paenibacillus SP. N2, N4, N7: Azotobacter sp. N3, N5: Rheinheimera sp. N6: Agrobacterium sp. N8, N11: Pseudomonas sp. N9: Azotobacter chroococcum N10: Enterobacter sp. N12: Pantoea sp. N13: Erwinia sp. b Solubilization zone of organic phosphate c Solubilization zone of inorganic phosphate
