Rio de Janeiro, August 28 (RHC) -- A poll on Wednesday confirmed Brazilian President Dilma Rousseff's lead position, while there is growing support for Brazilian Socialist Party (PSB) presidential candidate Marina Silva in the lead up to October 5th general elections.

The MDA Institute poll, commissioned by the National Industry Confederation, was the second in as many days to show Rousseff, who is running for re-election, still leads with 34.2 percent of support, while Silva has passed conservative opposition rival Aecio Neves (16 percent) to take second place with 28.2 percent.

In a runoff between Rousseff and Silva, the latter would win 43.7 to 37.8 percent, the MDA said, echoing the results of an Ibope poll published Tuesday. Silva would also beat Neves 48.9 to 25.2 percent.

Until two weeks ago, Silva was the running mate of PSB presidential candidate Eduardo Campos, who died on August 13th in a plane crash. The party then named her its candidate.