What are the quantitative methods for estimation of ammonia production by plant growth promoting rhizobacteria (PGPR)?

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Beatriz elena Guerra

you can check

Evaluation of fluorescent Pseudomonas spp. with single and multiple PGPR traits for plant growth promotion of sorghum in combination with AM fungi

G. Praveen Kumar, N. Kishore, E. Leo Daniel Amalraj, S. K. Mir Hassan Ahmed, AbdulRasul, Suseelendra Desai

Ammonia accumulation in culture broth by the novel nitrogen-fixing bacterium, Lysobacter sp. E4

Kenichi Iwata1, Azlin Azlan2, Hironori Yamakawa3, Toshio Omori1

Mohammed Faisal A Ansari

Thanx Beatriz..

Marieta Marin-Bruzos

Use the Nessler method. you can find it easy in internet

Thanks Marieta..

Dr.Arti Thakur

By using the Nessler method take OD of culture samples at 425 nm. Use ammonium sulphate for preparing calibrated curve and found the concentration of ammonia production by the equation mx + c.