Influence of endomycorrhizal fungus Glomus intraradices and bacteria from the genus Pseudomonas on the sorghum plants in the salinity soil

Abstract

Influence of inoculation with bacteria Pseudomonas aureofaciens BS1393, P. fluorescens 283, P. fluorescens 331 and endomycorrhizal fungus Glomus intraradices on the productivity of sorghum and absoption of elements in saline soil was investigated under conditions of laboratory and green house. The research shows that all bacteria strains restraint sorghum growth. Inoculation with bacteria increases amount of chlorine and natrium in sorghum in the beginning of vegetation. In the second part of vegetation P. aureofaciens BS1393 and P. fluorescens 331 decrease absorption of mineral nutrition and increase amount of ammonium in plant tissues. Endomycorrhizal fungus G. intraradices inhibit sorghum growth in saline soil. Under the influence of G. intraradices the absorption of mineral nutrition is reduced, but amount of ammonium is lower than under inoculation with bacteria strains. Inoculation with both endomycorrhizal fungus and bacteria strains enlarges absorption of mineral nutrition and decreases amount of ammonium in plant tissues. The productivity of sorghum under inoculation is higher than under inoculation with G. intraradices or with bacteria but is not above productivity of plants without inoculation.

Keywords:

saline soil, endomycorrhizal fungus, bacteria g. Pseudomonas, sorghum, chlorine, natrium, ammonium, mineral nutrition, plants productivity