Abstract
The efficacy of symbiotic association between three Rhizobium strains i.e. B (TAL-1371, C (Tal-1000) and 0 (NC92) and two groundnut genotypes viz. V1 (ICG-4993) and V2 (ICG-732) was studied in a field trial under rain-fed conditions of Pothowar in a semi-arid environment. Inoculation increased symbiotic and yield traits of ground nut genotypes. Plants inoculated with strain 0 (NC-92) had significantly more nodules plant", nodule dry weight plant", N content of nodules, roots and shoots of both V1 (ICG-4993) and V2 (ICG-7326) than that of strain B (TAL-1371) or strain C (TAL-1000). The strain 0 (NC-92) exhibited specificity and positively interacted in influencing symbiotic traits of V2 (ICG-7326). Plants inoculated with strain 0 (NC-92) produced more pods plant", pods and biological yield ha' compared to strain B (TAL-1371) or strain C (TAL-1000). The effect of strain B (TAL-1371) and strain C (TAL-1000) was statistically same on symbiotic and yield traits of groundnut genotypes. Rhizobium strain 0 (NC92) was found superior to strain B (TAL-1371) or strain C (TAL-1000) in their effects on symbiotic traits and groundnut yield. Key words: Rhizobium /eguminosarm, strains, groundnut genotypes, symbiotic and Yield traits
