* Euro zone periphery govt bond yields tmsnrt.rs/2ii2Bqr (Updates prices) April 28 (Reuters) - German 10-year bond yields rose to their highest since late February on Wednesday, catching up with a jump in Treasury yields ahead of the close of the U.S. Federal Reserve’s policy meeting later in the session. No major policy changes are expected at the meeting, but investors are awaiting Fed Chairman Jerome Powell’s comments for any signs that the bank may start talking about tapering its bond buying. The Fed has promised it will continue purchases at their current pace until “substantial further progress” is made in an economic recovery from the pandemic.