Effect Salinity Stress on ‘N’ Uptake by Soybean Inoculated with Salt Tolerant Rhizobium Under in-Vitro Condition

The research work entitled, Effect salinity stress on ‘N’ uptake by soybean inoculated with salt toleran t Rhizobium under in-vitro condition” was carried out i n the laboratory of Department of Plant Pathology a nd Agricultural Microbiology, Mahatma Phule Krishi Vidyapeeth, Rahuri during the year 2014-2017. The ‘N’ upta ke of soybean was affected with increased EC levels of soil . A pot experiment was conducted with a view to seein g the effect of different EC levels of soil along with inoculatio n of a liquid formulation of salt tolerant Rhizobium on ‘N’ uptake by soybean. Five salinity levels of soil (1.5, 3, 4, 5 and 6 dSm) were developed in pots. However, EC level 1.5 dSm -1 i. e absolute control shown better N’ uptake followed by EC level 3.0 dSm inoculated with salt tolerant Rhizobium (STR) over soybean crop inoculated with reference strain h aving EC level 1.5 dSm and EC level 3.0 dSm. The lowest N’ uptake was recorded by uninoculated treatment of EC level 1.5 dSm i. e. absolute control and 3.0 dSm . The N’ uptake was hampered at EC level 6.0 dSm , inoculated with salt tolerant Rhizobium followed by inoculated reference strain at EC level 6.0 dSm and uninoculated treatment.