Study the induction effect of azospirillum inoculation on the formation of para-nodules on gramineae [electronic resource].

Includes reference.

In order to study the effect of Azospirillum brasilense inoculation on graminae, two field experiment were conducted at Maruit experimental station, Alex., Desert Research Center. AzospirilIum brasilense characterized by its ability to fix atmospheric nitrogen and production of plant hormones like indole- 3- acetic acid (IAA). Also, Azospirillum brasilense has the ability to transform tryptophan into IAA. Azospirillum brasilense was inoculated into wheat and maize to show its effect on growth and development of these plants. The achieved results could be summarized as follows 1- Addition of tryptophan in concentration up to 200 ppm to the growth media of Azospirillum brasilense lead to vigorous increase in the production of indole acetic acid (IAA) by the microorganism.

Summary in Arabic.

1