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Effect of diazotrophic plant growth promoting rhizobacteriaon seed germination of chickpea (Cicera rietinum L.) | Abstract
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Abstract

Effect of diazotrophic plant growth promoting rhizobacteriaon seed germination of chickpea (Cicera rietinum L.)

Author(s): M. Ghalem, A. Tifrit, K. Larbi Daouadji, M. Labdi and B. Abbouni

Plant growth-promoting rhizobacteria are a group of free-living bacteria that colonize the rhizosphere. In the present study, 12bacterial isolates have been isolated from the rhizosphereof chick pea cultures.The isolates have been screenedfor their capacity to produce particular metabolites (hydrocyanic acid production HCN, inorganic phosphates solubilizationand the proteins hydrolysis) and also screenedfor their antifungal activity against Fusariumoxysporum f. sp. ciceris.All isolates have presented a good antagonistic activity againstFusariumoxysporum f. sp. ciceris.Compared with the others isolates such as NfA, NfD and NfC have manifested a good proteolysis and phosphorus solubilizationcapacity, where the index varied from 1.83 to 3.03 and their antagonisticactivity againstFusariumoxysporum f. sp. Cicerishasreached20%.Finally, the selected isolates was tested in vivo on the seedsgermination of chickpea, where hasmanifested an interesting capacity to promoteseed germination and plants growth.In conclusion, the selected isolates, NfA, NfD and NfC have presented an excellent effect for promotion germination of the chick pea, where the vigor index registered ranged from 140 to 180.