* TSX up 45.41 points, or 0.31 percent, at 14,727.38
* Six of the TSX's 10 main groups are higher
TORONTO, Aug 30 (Reuters) - Canada's main stock index rose in early trade on Tuesday, boosted by a rebound in energy stocks and further gains for financials, while a report of a possible merger sent shares of two fertilizer companies soaring.
Bank of Nova Scotia BNS.TO was one of the biggest gainers, with the country's third-biggest lender up 1.5 percent at
C$69.92 after reporting earnings above expectations even as it reins in domestic mortgage lending. financials group was up 0.7 percent overall, as Scotia's earnings rounded out a robust earnings season for banks.
Shares of fertilizer companies Potash Corp POT.TO and Agrium Inc AGU.TO jumped after Bloomberg reported that the two are in talks to merge. Corp was up 11.5 percent at C$23.30 and Agrium rose 7.1 percent to C$124.81 before both stocks were halted.
At 10:25 a.m. EDT (1425 GMT) the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 45.41 points, or 0.31 percent, at 14,727.38. Six of its 10 main groups gained.
The energy group was up 0.8 percent overall as crude prices rose with the threat of a tropical storm limiting U.S. Gulf production and talk of a concerted move to prop up prices re-emerged. O/R
Suncor Energy Inc SU.TO added 0.4 percent to C$36.28 and Encana Corp ECA.TO rose 1.2 percent to C$13.10.
Mining stocks were the main drag, with Barrick Gold off 2.6 percent at C$23.33. Goldcorp Inc G.TO lost 2.5 percent to
C$20.72 as gold prices fell. GOL/
The materials group, which includes precious and base metals miners and fertilizer companies, was up 0.1 percent.