* Wheat rises on crop concerns * Soybeans ease on weaker oil prices, slowing China demand (Updates prices, changes dateline) By Naveen Thukral and Sybille de La Hamaide SINGAPORE/PARIS, July 21 (Reuters) - Chicago wheat rose for a sixth consecutive session on Wednesday as adverse weather in key exporting countries raised supply concernswhile soybeans edged lower on weaker oil prices and slowing demand in top importer China. Corn was flat. "There are definitely problems for the U.S. and spring wheat crops but we will get to know how big the problem is when the harvest starts, which is about two weeks from now for the U.S. spring wheat and Canada is about a month later," said one Singapore-based trader, who sells U.S. wheat to millers in Asia. The most-active wheat contract on the Chicago Board Of Trade (CBOT) climbed 0.4% to $7.03-1/4 a bushel by 1130 GMT, having risen to $7.10 a bushel earlier in the session and touching a May 18 high of $7.18 a bushel on Tuesday. Soybeans lost 0.4% to $13.82-1/2 a bushel, while corn was unchanged at $5.65-3/4 a bushel. The wheat market is being underpinned by crop concerns in North America and the Black Sea region. The U.S. Department of Agriculture (USDA), in a report released after Monday"s market close, rated 11% of U.S. spring wheat as good or excellent, down from 16% a week earlier and below analysts" average estimate of 15%. The USDA last week projected that U.S. spring wheat production would shrink to a 33-year low. The agency left unchanged its good/excellent score for U.S. corn at 65%, short of an analyst consensus of 66%. It raised the soybean rating by 1 percentage point to 60%, in line with expectations. China"s soybean imports from Brazil slipped in June from a year earlier, customs data showed on Tuesday, as poor crushing margins weighed on demand. Declining soybean crush margins have hit China"s demand, which has been strong in recent months as the country"s recovering pig herd boosted consumption. Commodity funds were net buyers of CBOT corn, soybeans, soyoil, wheat and soymeal futures contracts on Tuesday, traders said. Prices at 1120 GMT Last Chang Pct End Ytd e Move 2020 Pct Move CBOT wheat 703.25 2.75 0.39 640.50 9.80 CBOT corn 566.25 0.50 0.09 484.00 16.99 CBOT soy 1382.50 -6.00 -0.43 1311.00 5.45 Paris wheat 217.75 -0.25 -0.11 213.25 2.11 Paris maize 259.00 2.00 0.78 219.00 18.26 Paris rapeseed 527.00 -8.25 -1.54 418.25 26.00 WTI crude oil 68.26 1.06 1.58 48.52 40.68 Euro/dlr 1.18 0.00 -0.08 1.2213 -3.63 Most active contracts - Wheat, corn and soy US cents/bushel, Paris futures in euros per tonne (Reporting by Naveen Thukral; Editing by Subhranshu Sahu and Chizu Nomiyama)