EFFECTS OF ARBUSCULAR MYCORRHIZA FUNGI (AMF), PLANT GROWTH PROMOTING BACTERIA (PGPR) AND INTERACTION ON STRIGA HERMONTHICA MANAGEMENT IN SORGHUM

Author

By MOHAMMED MAHGOUB HASSAN, TILAL SAYED ABDELHALIM, SAMIA OSMAN YAGOUB, AWAD GALAL OSMAN, MIGDAM EL SHEIK ABDEL GAIN, ABDEL GABAR EL TAYEB BABIKER.

Abstracts

Our study was performed to test the effects of mycorrhiza fungi and plant growth promoting bacteria on Striga control in sorghum. AM fungi negatively impacted on Striga germination. It reduced the number of Striga seedlings attaching and emerging, and delayed the emergence time of Striga in pot experiment. The performance of the AMF alone or in combinations with bacterial strains was significantly better than that of the bacteria alone in terms of reduction of Striga infestation, plant height and dry matter. AM fungi enhanced the performance of the sorghum host, allowing it to withstand Striga damage better. The percent reduction (82%) of Striga emergence after AM inoculation resulted in about a 28% increase in total dry matter of sorghum over the control. The plant height and dry matter of sorghum were significantly higher in the combinations between AM + bacteria strains. Moreover, results of this experiment suggest that mycorrhizal management might be an important factor in an integrated management with bacteria for Striga control.

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