College basketball is unlikely to establish a shot clock or three-point shot as a standard rule next season, Edward Steitz, editor of the NCAA basketball rules committee, said today.

But Steitz said it is likely the rules committee will allow two to three leagues to experiment with a 45-second clock and three-point shots from 21 and 23 feet from the backboards. He said he was uncertain whether the committee would let any league use both a shot clock and a three-point shot next season.

The 45-second clock and the 21- and 23-foot three-point shot were most favored by NCAA coaches in a rules committee survey conducted by Steitz, athletic director at Springfield (Mass.) College.

In that survey, 89 percent of 714 coaches responding said they favored fewer experimental rules than this season and 89 percent also were opposed to any "radical" rules changes. Steitz said that he considers the shot clock and three-point shot as "radical" changes.

But there is much more sentiment for a shot clock and a three-point shot than in recent years. Forty-nine percent of the coaches answering the survey favor a shot clock and 45 percent favor a three-point shot. Last year, two of every three NCAA coaches opposed a three-point shot and the vote was 399 to 1 against a 24-second clock.

But there is little sentiment this year for the Atlantic Coast Conference's 30-second clock and 17-foot 9-inch three-point shot (from the front of the rim). Of 13 ACC coaches, including some assistants, nine favor a three-point shot, but only five of them want the short line used this season; 12 coaches favor a shot clock, split evenly between 30 seconds and 45 seconds.

Nationally, of those who favored a three-point shot, 41 percent want it 21 feet from the backboard, or at the top of the key, as used by the Atlantic 10 and Big 10 conferences, among others, last season; 35 percent want it 23 feet from the backboard, 18 percent want it at NBA distance and only 6 percent at ACC distance.

Of those who favored a shot clock, 75 percent want it for 45 seconds, 17 percent want a 30-second clock and 8 percent want a one-minute clock. If a shot clock is used, 62 percent want it turned off in the final minutes of the game.

The rules committee will meet here Monday through Wednesday in conjunction with the semifinals of the national collegiate basketball championships and the annual convention of the National Association of Basketball Coaches.