Gov. Jennifer M. Granholm of Michigan has proposed replacing the state\'s merit-based program of college scholarships with a pledge to automatically give students $4,000 each if they complete two years of postsecondary education or apprenticeship training. In a State of the State address delivered on Tuesday evening, Governor Granholm, a Democrat, also announced a plan to issue $2-billion in state bonds over 10 years to finance research intended to spur economic development.