Abstract:The hereditary character and the nodulation competition ability, with the Tianfu No.3 peanut cultivar, were determined by AFLP fingerprinting method with Five p eanut bradyrhizobial strains of Spr2 9, Spr3 3, Spr3 5, Spr4 5, and Spr7 1. The results showed that: the variation of AFLP fingerprinting for all of the ex perimental strains cultivated at 28℃ as well as the strains of Spr3 3 and Spr3 5 incubated at 37℃ in YMB medium for 96 generations was not obvious, howeve r, the strains of Spr2 9, Spr4 ...