CANADA STOCKS-TSX drops hard as commodity prices fall

* TSX falls 135.21 points, or 1.09 percent, to 12,321.29 * Eight of 10 main index sectors decline * Talisman, Cameco decline after earnings reports * Yamana Gold falls 6.5 percent after profit drops * Tim Hortons jumps 4 percent after investor turns activist By John Tilak TORONTO, May 1 (Reuters) - Canada's main stock index fell more than 1 percent on Wednesday, hurt by sluggish economic data from China that yanked commodity prices lower and by weak earnings reports from