Physiological Responses of Soybean - Inoculation of Bradyrhizobium japonicum with PGPR in Saline Soil Conditions
نویسندگان
چکیده
Soil salinity is one of the most severe factors limiting nodulation, yield and physiological response in soybean. The possible role of plant growth promoting rhizobacteria (PGPR) in restricting mineral nutrients and thus alleviating soil salinity stress during plant growth has not yet been established. In this study, the beneficial effects of inoculation with salt-stressed PGPR strains were investigated under greenhouse conditions. Salt-stressed plants had significantly decreased plant growth, photosynthesis and mineral uptake with increasing salinity compared to those from non-saline soil. The un-inoculated plants, compared to the inoculated plants, under soil salinity conditions had an increased antioxidant activity and concentration of proline, MDA, GR and APX. The results suggested that inoculation of salt-stressed plants with PGPR strains could alleviate salinity stress.
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