Delaware Gov. Pierre S. du Pont IV reportedly is considering plans to further relax restrictions in the state's recently liberalized banking laws. The Wilmington Morning News said yesterday that the new proposal would allow banks to engage in real estate, insurance and other financial activities.

Legislation that took effect last year already has attracted 11 out-of-state banks by offering tax breaks and other incentives, including eliminating interest-rate ceilings and allowing banks to charge fees to credit card users.

COMBINED STAFFS: The Atlanta Constitution and the Atlanta Journal, both owned by the Cox newspaper chain, will merge their news staffs this summer.

"It no longer makes good journalistic sense to duplicate coverage in some areas and ignore others," said Tom Wood, president of Atlanta Newspapers Inc.

The Constitution will continue to be published in the morning and the Journal in the evening Monday through Friday, Wood said. A merged paper called the Journal-Constitution long has been published on Saturday and Sunday.

STATION SALE: New England Television Corp. has agreed to pay RKO General Inc. about $22 million for WNAC-TV. The Federal Communiciations Commission refused to renew RKO's license because it failed to disclose that its parent, General Tire & Rubber Co., was being investigated for foreign bribery and illegal domestic political contributions.

TRANSIT CONTRACT: Siemens Corp. of West Germany was apparent low bidder and will build up to 60 cars for more than $50 million for the Allegheny County Port Authority's light rail transit system between the South Hills and downtown Pittsburgh.