Fifty-four percent of Israelis favor negotiations with the PLO, while 44 percent oppose such talks under any circumstances, according to a poll published Friday. The findings contrast with the policy of the new coalition government, which flatly rules out talks with the Palestine Liberation Organization. Israel says the PLO is a terrorist organization. Prime Minister Yitzhak Shamir of the right-wing Likud bloc said in presenting the government Thursday that he invited the left-leaning Labor Party to share power because Israel needs to present a united front against the PLO. The poll was conducted Tuesday and Wednesday by the Dahaf Institute, which interviewed 653 Israeli Jews.