* Putin says Russia to extend wheat export ban
* Paris echoes Chicago gains
* Soy ticks up; corn softens after near 2 percent jump
(Adds Russia, updates prices)
By Martin Roberts
MADRID, Sept 2 (Reuters) - Chicago wheat futures gained more than 1 percent on top of a demand-led rally of more than 3 percent in the previous session, while global supply appeared to be tightening as Russia said it would extend its export ban.
Corn eased after climbing to a 14-1/2 month top on Wednesday, while soybeans, which have been subdued by early U.S. harvest, ticked higher.
"The supply side story is pretty much in the market at the moment, and any upside action has to be on back of the demand story which we had last night," said Brett Cooper, a senior manager of markets at brokerage FCStone Australia.
Chicago Board of Trade September wheat was up 7-1/4 cents at $6.82-3/4 a bushel by 1309 GMT and the more actively traded December contract rose 0.92 percent to $7.13-1/2 a bushel.
Prime Minister Vladimir Putin said Russia could consider lifting its grain export ban only after next year's harvest has been collected.
Earlier, Russian President Dmitry Medvedev was optimistic over his country's wheat stocks, although traders doubted this would halt Russian imports.
"After the export ban the Russians probably have enough stocks for their immediate use, but more people are expecting imports in the coming months," a German trader said.
Medvedev meanwhile ordered Russian law enforcement agencies to prevent speculators from driving up food prices after the worst harvest in years and pledged help to ensure affordable food staples.
Analysts said the trigger on Wednesday was the news that Egypt, the world's largest wheat importer, bought 225,000 tonnes of U.S. wheat and that Germany purchased 20,000 tonnes of U.S. spring wheat, the first such purchase in three years.
The U.S. Department of Agriculture on Thursday confirmed that exporters shipped 83,000 tonnes of U.S. wheat to Egypt in the week ended Aug. 26.
"The shortage of wheat in some traditional exporting countries - Russia will probably also be dependent on wheat imports - should lead to a further reduction in high U.S. wheat stocks and therefore support prices," Commerzbank said in a note.
Gains in Chicago meanwhile drove gains in France, Europe's biggest wheat producer, as did intense export activity.
Paris traders were waiting to see if benchmark prices could break through firm resistance at 230 euros/tonne, which could accelerate the rally.
November milling wheat on Euronext was up 2 euros at 229.50 euros a tonne by 1312 GMT.
"There is a good chance we'll go above 230 euros today. Some operators see the market at 250 euros," one futures broker said. "There is so much export demand that buyers are paying above market prices."
Wheat futures have surged since July as drought in the Black Sea region, too much rain in Canada and a mix of unfavourable weather in European Union countries have forced downgrades of 2010 wheat crop forecasts.
There was more bullish news from Argentina, where 2010/11 wheat output is seen between 9 million and 10.5 million tonnes, the Rosario grains exchange said, putting its first harvest estimate far below other forecasts.
Western Australia has had rain this week, bringing some relief to parched crops in the nation's top wheat exporting state.
The corn market, which has been aided by the strengthening wheat market and lower-than-expected yields, was slightly weaker. CBOT September corn slipped 0.29 percent to $4.28-3/4 per bushel and the December contract slid by 0.17 percent to $4.45 per bushel.
FCStone cut its estimate of the U.S. 2010 corn crop to 13.195 billion bushels, with an average yield of 162.9 bushels per acre (bpa).
It projected the 2010 U.S. soybean crop at 3.390 billion bushels, down from 3.428 billion in the August estimate. The firm lowered its soybean yield estimate to 43.5 bushels per acre from 44.0 last month.
The forecasts compared with the U.S. Department of Agriculture's current corn production forecast of 13.365 billion bushels, with an average yield of 165.0 bpa.
CBOT new-crop November soybeans rose 0.2 percent to $10.07 a bushel.
* Prices as of 1321 GMT Product Last Change Percent Move End 2009 Ytd Percent Paris wheat 229.50 2.00 +0.88 131.25 74.86 London wheat 156.00 1.50 +0.97 106.50 46.48 Paris maize 195.00 0.00 +0.00 135.00 44.44 Paris rapeseed 374.50 -1.00 -0.27 287.50 30.26 CBOT wheat 682.75 7.25 +1.07 541.50 26.08 CBOT corn 428.75 -3.50 -0.81 414.50 3.44 CBOT soybeans 1005.75 1.25 +0.12 1039.75 -3.27 Crude oil 73.38 -0.53 -0.72 79.36 -7.54 Euro/dlr 1.28 -0.15 -10.49 1.43 -10.44 *Front month contracts. CBOT contracts in cents per bushel. Paris wheat in euros a tonne and London wheat in pounds per tonne. (Additional reporting by Gus Trompiz in Paris and Michael Hogan in Hamburg; Editing by Jane Baird)