* TSX falls 2.89 points, or 0.02 percent, to 12,639.30 * Seven of 10 main index sectors decline * CN Rail has biggest negative influence on the market By John Tilak TORONTO, Aug 14 (Reuters) - Canada's main stock index ended near flat on Wednesday as declines in the financial sector and concerns about a pullback in the U.S. Federal Reserve's bond buying offset a jump in shares of gold producers. Investors were, however, encouraged by data that showed Germany and France grew more quickly than expected in the second quarter, fueled by renewed business and consumer spending in the region's two largest economies. The market braced itself for a potential move, which many say will come in September, by the Fed to begin withdrawing support from its monetary stimulus program. "When the shoe drops, that could cause the market to have a hiccup," said Lorne Steinberg, president of Lorne Steinberg Wealth Management. "Even the hint that bond yields are going to rise is negative for equities." The Toronto Stock Exchange's S&P/TSX composite index closed down 2.89 points, or 0.02 percent, at 12,639.30. The resource-heavy Canadian market, which eased from a two-week high touched in the previous session, has been hit by volatile commodity prices and is barely up since the start of the year. "There is an increasing perception that slowing growth in the emerging markets is not just a hiccup but will continue for some time," Steinberg said. "That is making Canada less attractive to foreign investors." Seven of the 10 main sectors on the index were in the red on Wednesday. Financials, the index's most heavily weighted sector, gave back 0.2 percent. Royal Bank of Canada, the country's biggest lender, lost 0.2 percent to C$63.93. Industrials slipped, with Canadian National Railway Co shedding 1.1 percent to C$101.23, having the biggest negative influence on the market. But the materials sector, which includes mining stocks, rose 2.3 percent, helped by a 4.7 percent jump in shares of gold producers. A surge in bullion benefited the miners. Goldcorp Inc gained 3.6 percent to C$30.35, and Barrick Gold Corp added 4.8 percent to C$19.28. In company news, Rona Inc reported a wider-than-expected second-quarter loss, weighed down by restructuring costs and tough market conditions. Shares of the home improvement chain slipped 3.7 percent to C$10.84. Shares of energy companies climbed 0.2 percent. Suncor Energy Inc added 2.1 percent to C$33.79, and Encana Corp rose 0.6 percent to C$18.09.