this paper aimed to evaluate the effect of inoculation on phaseolus vulgaris (l.) cv. 'talism？' with four rhizobia strains isolated from amazon region: ufla 02-100, ufla 02-127, ufla 02-86 and ufla 02-68, compared to inoculation with strain ciat-899, officialy authorized as inoculant to common beans by mapa. the experiment was carried out in the 'universidade federal de lavras' campus, in a randomized block design, with 6 replications and 7 treatments. treatments were the five strains and two controls: one receiving mineral-n (80kg n ha-1) and the other an absolut control. nodule number and dry matter weight, shoot dry matter weight, grain yields and n-content both in shoots and grain were evaluated. inoculation with strain ufla 02-68 promoted highest grain yields, similar to the control receiving mineral-n, their yields were even higher than that of strain ciat 889.