* USDA slated to issue U.S. crop-progress report Monday

* Analysts will review wheat ratings, corn plantings

* Traders monitor wheat exports from Russia

(Adds latest prices, analyst comments, and details on crop weather and exports; changes byline/dateline from Hamburg)

CHICAGO, April 8 (Reuters) -

U.S. wheat futures rose on Monday on worries about dry weather in the U.S. Plains and Russia, and lingering concerns over Russia holding up export shipments, analysts said.

Corn futures also crept higher at the Chicago Board of Trade, while soybeans were mixed.

Traders watched weather affecting U.S. wheat fields before the U.S. Department of Agriculture is slated to issue a weekly report on crop condition ratings at 3 p.m. CDT (2000 GMT). The report will also include a progress update on U.S. corn planting.

Significant winds across the southern U.S. Plains wheat areas "didn't do the crop any favors," said Randy Place, analyst with the Hightower Report. Analysts also monitored rains in the region after drought reduced last year's harvest.

"We continue to miss out on some rains in key growing areas," said Mark Soderberg of ADM Investor Services.

Place and Soderberg added that Russia, the world's largest wheat exporter, continued to generate


that it was holding up wheat shipments over quality control certificates, helping to support futures.

CBOT May wheat futures were up 3-1/2 to $5.70-3/4 by 12 p.m. CDT. Most-active corn was up 2-1/4 cents at $4.36- 1/2 a bushel, while soybeans slipped 1-3/4 cents to $11.83-1/4 a bushel.

The USDA on Thursday is slated to update global supply and demand data in a monthly report.

Soderberg said the corn crop in Brazil was "shaping up to be pretty good" and that the soybean harvest appeared to be about 80% complete, with wetter weather in the north and drier conditions in the south.

Consultancy AgRural said

Brazil's soybean harvest

had reached 78% of the planted area as of last Thursday.

On Friday, sources said the Biden administration in the coming weeks would release a preliminary climate model for its sustainable aviation fuel (SAF) subsidy program that would be more restrictive than corn-based ethanol producers had hoped. Analysts said the news did not significantly impact corn trading on Monday.

(Reporting by Renee Hickman in Chicago. Additional reporting by Michael Hogan in Hamburg, additional reporting by Naveen Thukral in Singapore; Editing by Sherry Jacob-Phillips, Eileen Soreng, Alexander Smith and Richard Chang)