Growth Chamber Assessment Of Superior IAA Producing r Hizobial Strains And The Effect Of Ag And Tryptophan Treatments On Wheat Growth Indecies
2007
Etesami, H., Agriculture College of Tehran University. | Alikhani, H. A., Agriculture College of Tehran University. | Saleh Rastin, N., Agriculture College of Tehran University.
On the basis of the results gained from the test of the evalution of quantitative and qualitative producing potential of IAA and the invitro test of assessing of superior IAA producing rhizobial strain use on wheat growth yield, in this research 5 bacterial isolates were selected and their potential was studied in greenhouse conditions. Greenhouse test results on wheat showed that bacterial treatment and also the Ag and Trp treatments had significant effect on measured parameters. The comparison of the means showed that between the rhizobial treatment effects there is a significant difference on the measured parameters. Also the mean comparison of Ag and TrpTreatments showed that usage of both Ag and Trp.treatments together caused a significant increase on measured parameters in comparison with using Ag and Trp alone and also in comparison with the control. So, the most important assimulation mechanism by rhizobial strains, is production of Indole phytohormones (IAA) which results the better root growth, so increase of water and macronutrient (N, P and K) uptake by the plant and increase of the plant growth.
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