10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 2 2013 (April - June) lessThan i greaterThan Arachis hypogeae lessThan /i greaterThan L lessThan i greaterThan . lessThan /i greaterThan groundnut is a second largest source of edible vegetable oil. Medicinally the oil is used as a laxative and emollient. lessThan i greaterThan Arachis hypogeae lessThan /i greaterThan L lessThan i greaterThan . lessThan /i greaterThan seedlings were grown in earthen pots containing unsterilized soil inoculated with lessThan i greaterThan Glomus fasiculatum lessThan /i greaterThan , lessThan i greaterThan Rhizobium lessThan /i greaterThan or a combination of symbionts. After 90 days growth, plant height, dry weight, root dry weight,mycorrhizal colonization, spore number, percent of yield, nitrogen and phosphorous content were quantified. Plant with either a combination of mycorrhizal fungi and R lessThan i greaterThan hizobium lessThan /i greaterThan grew taller and produced higher dry matter of root and shoot than infected with lessThan i greaterThan Rhizobium lessThan /i greaterThan species alone or control plants. The presence of lessThan i greaterThan Rhizobium lessThan /i greaterThan increased the nitrogen content of above the ground. Foliage number increased with inoculation of mycorrhizal fungi and phosphorus content was increased. In the present study mycorrhizal fungi and lessThan i greaterThan Rhizobium lessThan /i greaterThan were found to be synergistic with respect to nitrogen fixation and percent of root colonization. K.P. KOLKAR, H.C. LAKSHMAN AND P.A.HOSAMANI Arachis hypogeae L., Arbuscular mycorrhizal fungi(AMF),Rhizobium, Glomus fasciculatum, unsterile soil, percent root colonization, Biomass production. 518-524