UPDATE 2-Brazil's Silva not yet ready to endorse Neves in runoff
(Adds details on Silva's requests, upcoming polls, Petrobras corruption case)
By Anthony Boadle
BRASILIA Oct 9 (Reuters) - Environmentalist Marina Silva said on Thursday she will wait for political pledges from pro-business opposition candidate Aecio Neves before backing him in the Oct. 26 runoff to Brazil's presidential election.
An endorsement from Silva, who finished third in the election's first round on Sunday with 22 million votes, would increase Neves' chances of unseating leftist President Dilma Rousseff and ending 12 years of Workers' Party rule.
Silva's Brazilian Socialist Party backed Neves on Wednesday, but she wants to see him formally embrace some key points from her campaign platform before offering an endorsement.
In a note to parties that backed her unsuccessful presidential bid, Silva said her decision depended on Neves' response to her request.
A Silva aide, Pedro Ivo, said she is seeking "progressive" commitments to defend the rights of Brazilian Indians and landless peasants, issues that are not part of Neves' platform. She also wants Neves to commit to "sustainable development," a key concept of her campaign.
The Silva camp plans to deliver a list of requests to Neves' campaign managers on Friday, her spokesman Walter Feldman said.
"We hope Neves embraces the idea of political renewal," Feldman told reporters at a meeting at the Socialist Party's headquarters in Brasilia. Continuación...