CHICAGO, July 1 (Reuters) - The following are U.S. expectations for the resumption of grain and soy complex trading at the Chicago Board of Trade at 8:30 a.m. CDT (1330 GMT) on Wednesday.

WHEAT - Up 2 to 9 cents per bushel

• Wheat futures rose, extending gains triggered by the U.S. Department of Agriculture's acreage and stocks estimates on Tuesday

• In the closely followed report, the USDA pegged U.S. wheat plantings and quarterly stocks below trade expectations.

• The USDA's sharp cut to its wheat area estimate was a particular surprise for the market and shifted attention back towards poor prospects for this year's drought-affected U.S. harvest.

• CBOT September soft red winter wheat WU26 was last up 9-1/4 cents to $5.98-1/2 per bushel. K.C. September hard red winter wheat KWU26 was last 8-1/4 cents higher to $6.33-1/2 per bushel, while Minneapolis September spring wheat MWEU26 was last up 8-1/2 cents to $6.15 per bushel.

CORN - Up 4 to 7 cents per bushel

• Corn extended gains following Tuesday's USDA reports, while traders monitored a heat wave in the U.S. corn belt and Europe.

• Hot weather hit the U.S. Midwest this week, though widespread showers and easing heat into next week were expected to limit stress on corn and soybean crops.

• The USDA pegged corn acreage above average expectations, but its corn stocks estimate was lower than anticipated on average.

• In Europe, a prolonged heat wave and drought have added stress to the corn crop.

• CBOT July corn CN26 was last up 7-1/4 cents to $4.20 per bushel.

SOYBEANS - Up 6 to 15 cents per bushel

• Soybeans turned higher amid rumors of increased Chinese interest in purchasing U.S. soy.

• However, the increased USDA estimate of U.S. planting and weaker oil prices curbed the oilseed market.

• CBOT November soybeans SX26 were last 10 cents higher to $11.53-3/4 per bushel.