By MarketsFarm WINNIPEG, Sept. 2 (MarketsFarm) – The Canadian dollar was weaker Wednesday morning, with broad strength in the United States dollar index putting some pressure on the currency. At 9:19 CDT Wednesday morning the Canadian dollar was at US$0.7643 or C$1.3084 which compares with Tuesday’s North American close of US$0.7660 or C$1.3055. Crude oil