March 15 (Reuters) - Futures for Canada's main stock index rose on Monday, tracking higher commodity prices, while investors awaited domestic manufacturing sales data for January to gauge the country's economic health. [O/R] While gold futures gained 0.44% as bullion prices edged up on prospects of higher inflation following the approval of a $1.9 trillion U.S. stimulus bill. Canadian automation company Promation had been banking on a weaker currency to help it win a new U.S. contract, but slower pace of vaccinations in Canada could erase that competitive edge, President Darryl Spector said.