* Wheat due for a bounce, was oversold
    * Corn and soybeans gain as supplies shrink
    * Falling dollar lends support

 (New throughout to report upturn in the market, adds fresh
analyst quotes, changes dateline from PARIS/SINGAPORE)
    By Sam Nelson
    CHICAGO, May 23 (Reuters) - Chicago Board of Trade wheat
futures leaped 2 percent on Thursday, advancing for the second
day in a row, with a falling dollar, big export sales of U.S.
wheat and technical buying boosting prices, traders said.
    Corn and soybeans also rose, led by the old-crop contracts,
as already historically low U.S. supplies of each continue to
	

		

			
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shrink.
    Soybean futures continue uptrend and hit an eight-month high
as a port strike in major exporter Argentina increased the focus
on the tight short-term supply of the oilseed.   
    "There is strike talk, I'm not so sure how much of an impact
this is having, but there is that chatter," said Rich Nelson,
chief strategist for Illinois-based research and advisory firm
Allendale Inc.
    Argentina's striking port workers, who have stalled scores
of cargo ships since walking off the job over a wage dispute
earlier this week, failed to reach a wage deal on Thursday and
vowed to continue the work stoppage until next week.
 
    Larger-than-expected export sales of wheat, corn and
soybeans in the U.S. Department of Agriculture's (USDA) weekly
export sales report on Thursday contributed to advances.
  
    Wheat posted its biggest one-day advance in two weeks and,
along with corn, rose for the second day in a row. Soybeans have
risen for six straight sessions and already are up 4.3 percent
for the week, the biggest one-week gainer in 10 months.
    At 11:13 a.m. CDT (1613 GMT), CBOT July wheat was up
11-1/2 cents at $7.00 per bushel, corn for July delivery 
	

		

			
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was up 5-1/2 at $6.64 per bushel and July soybeans were up
18 cents at $15.12-1/4 per bushel.
    Wheat fell to a two-month low early in the week and was due
for a recovery, traders said.
    Nelson said that while concerns remain about wheat crop
weather in Europe and Russia, much of the strength in the wheat
market on Thursday was tied to technical short covering.
    "There is short covering, they exhausted the selling," said
Shawn McCambridge, analyst for Jefferies Bache. "There was
support from export sales and the dollar is sharply lower."
    The U.S. Department of Agriculture's weekly export sales
report released on Thursday showed net export sales of U.S.
wheat last week at nearly a million tonnes, well above analysts'
estimates. [ID:nL2N0E31DS}
    The dollar index fell nearly 1 percent on Thursday
after a slide in stocks sparked by a drop in Chinese factory
activity. 
    Corn prices also were recovering. The market declined
earlier in the week in reaction to spectacular planting progress
last week in the United States. Now a return of rain is slowing
remaining field work. 
    "We still haven't finished as far as the planting goes and
	

		

			
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finding some demand along the way is going to provide reasonable
support," said Brett Cooper, a senior markets manager at INTL
FCStone Australia.
    Rainfall over the next week to 10 days in parts of the
Midwest will delay remaining corn seedings and possibly cause a
shift from corn to soybean acreage, an agricultural
meteorologist said on Thursday.
    "Acreage reductions are most likely in northeastern Iowa,
southeastern Minnesota, central North Dakota and western
Wisconsin as rains remain normal to above normal," said
Commodity Weather Group (CWG) meteorologist Joel Widenor.
    Elsewhere in the Midwest, Widenor said warmer weather next
week with highs in the 80s (degrees Fahrenheit) to lower 90s F
would help dry soils between showers and speed corn and soybean
emergence.

 Prices at 11:03 a.m. CDT (1603 GMT)                               
 
                              LAST      NET    PCT     YTD
                                        CHG    CHG     CHG
 CBOT corn                  664.50     6.00   0.9%    2.8%
 CBOT soy                  1513.50    19.50   1.3%   26.3%
 CBOT meal                  445.50     4.90   1.1%   44.0%
 CBOT soyoil                 49.53    -0.11  -0.2%   -4.9%
 CBOT wheat                 701.50    13.00   1.9%    7.5%
 CBOT rice                 1541.00     7.00   0.5%    5.5%
 EU wheat                   206.75     0.75   0.4%    2.1%
 
 US crude                    93.57    -0.71  -0.8%   -5.3%
 Dow Jones                  15,313        5   0.0%   25.3%
 Gold                      1383.94    15.40   1.1%  -11.5%
 Euro/dollar                1.2942   0.0086   0.7%    0.0%
 Dollar Index              83.6670  -0.6850  -0.8%    4.4%
 Baltic Freight                828       -1  -0.1%  -52.4%
 
 (Additional reporting by Gus Trompiz in Paris and Naveen
Thukral in Singapore; Editing by Bob Burgdorfer)