DIVERSITY OF AGRONOMIC AND MOLECULAR TRAITS OF THE SOYBEAN CULTIVARS WITH DIFERENT LEVELS OF PHAKOPSORA PACHYRHIZI RESISTANCE

With intend to direct breeders in choose of parents for Asian soybean rust resistance associated with characteristics of interest economic, agronomic traits and microsatellite markers of 17 genotypes of soybean were evaluated in two experiments, one inoculated with soybean rust and the other without inoculation. The average of alleles per locus was 4.56. The cultivars TMG 801, UFUS Impacta, UFUS Xavante, Conquista, BRSGO 7860RR, A 7002 and UFVTN 104 exhibited exclusive alleles. The results of the weighted index using molecular markers show the major similarity for the cultivars Conquista and BRS Valiosa RR. The average weight of 100 seeds was equal 14.56g on the experiment with soybean rust and 18.0g on experiment without soybean rust. The average of proportion of infection by soybean rust on the leaf range 11.48% to 47.18%. We conclude that there is substantial genetic variability on soybean germoplasm with relation the allele's potential linked for soybean rust resistance genes. With intend of associate Asian soybean rust resistance with economic interest characteristics will be indicated the mating among UFVTN 104 x TMG 801 and/or UFUS Impacta, Conquista x UFUS Xavante, UFUS 8011 x BRSGO 7560 and/or TMG 803.