[PDF][PDF] Screening of soil bacteria for plant growth promotion activities in vitro
E Husen - Indonesian Journal of Agricultural Science, 2003 - researchgate.net
Fourteen isolates of soil bacteria, including two known plant growth promoting rhizobacteria
(PGPR) strains, Azotobacter vinelandii Mac 259 and Bacillus cereus UW 85, were tested in
vitro. Parameters assessed were indoleacetic acid (IAA) production, phosphate
solubilization, dinitrogen fixation, and siderophore (Fe-III chelating agent) production. IAA
production was assayed colorimetrically using ferric chlorideperchloric acid reagent.
Phosphate-solubilization and siderophore production were tested qualitatively by plating the …
(PGPR) strains, Azotobacter vinelandii Mac 259 and Bacillus cereus UW 85, were tested in
vitro. Parameters assessed were indoleacetic acid (IAA) production, phosphate
solubilization, dinitrogen fixation, and siderophore (Fe-III chelating agent) production. IAA
production was assayed colorimetrically using ferric chlorideperchloric acid reagent.
Phosphate-solubilization and siderophore production were tested qualitatively by plating the …
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