WASHINGTON — Former Governor Jeb Bush of Florida will be the keynote speaker at the annual convention of the American Bakers Association. Mr. Bush will speak March 15 at the Allied Trades of the Baking Industry breakfast. The meeting will be held March 13-17 at the Boca Raton Resort and Club in Boca Raton, Fla. “Governor Bush will be a tremendous source of insight and inspiration to our members, and we are thrilled to have a leader of such caliber participating in our event,” said Robb MacKie, A.B.A. president and chief executive officer. Mr. MacKie noted that the annual meeting’s theme will be “leading in times of change,” and said Mr. Bush during his two terms as Florida governor was known for sweeping reforms that “opened the doors for new business and created a thriving environment for entrepreneurship.” He added, “We are looking forward to hearing guidance from Governor Bush as to how we can improve our partnership with government leaders for the benefit of our businesses.”