UK Stocks-Factors to watch on March 1

March 1 (Reuters) - Britain's FTSE 100 index is seen opening up 23.1 points on Wednesday, according to financial bookmakers. * The UK blue chip index closed 0.1 percent higher at 7263.44 on Tuesday, as gains by GKN Plc and Pearson Plc outweighed losses from basic resources stocks. * UNILEVER: Unilever is proposing changes to how it pays executives and directors in order to make them think more like owners of the business, less than two weeks after seeing off a $143 billion takeo