CANADA STOCKS-Resource shares pull TSX lower; BMO gains

* TSX falls 24.27 points, or 0.19 percent, to 12,626.60 * Six of 10 sectors decline * BMO shares rise 1 percent after results By John Tilak TORONTO, Feb 26 (Reuters) - Canada's main stock index declined in volatile trading on Tuesday, with resource stocks tracking lower commodity prices and investors scrutinizing testimony by U.S. Federal Reserve Chairman Ben Bernanke. The declines were partially offset by Bank of Montreal , whose shares were up about 1 percent, after Canada