Quarterback Kelly Lowrey caught one pass for a touchdown and threw for a second score yesterday as Florida State defeated Ohio State, 34-17, in Columbus.

It was the first time in 10 years the Buckeyes (2-2) had lost back-to-back games at home. Michigan State and Northwestern had beaten Ohio State, 17-10 and 14-10, in 1971.

Lowrey, a 6-foot-1, 225-pound junior, caught an 11-yard pass from fullback Cedric Jones that started the Seminoles (3-1), a one-touchdown underdog, on their way to their second straight triumph in Ohio Stadium, silencing a crowd of 89,491.

"We got the heat (a muggy 80 degrees) we wanted," said Seminoles Coach Bobby Bowden. "It's like throwing Br'er Rabbit into the briar patch. It worked against Ohio State. They just tired in the second half. The heat got to them."

Ohio State Coach Earle Bruce blamed poor tackling for the Seminoles' gaining 494 yards.

"We ran against Ohio State real well," said Lowrey. "That's because we're quicker than they are."

Lowrey passed six yards to tight end Zeke Mowhatt to give Florida State its first lead, 14-10, midway through the second quarter.

Lowrey was hurt late in the third quarter but replacement Blair Williams' nine-yard pass to wide receiver Jessie Hester gave the Seminoles a 27-17 lead early in the fourth quarter. Tailback Ricky Williams' 10-yard touchdown run three minutes later secured the victory.

The Buckeyes tried two quarterbacks with little success. Sophomore Mike Tomczak, starting the fourth straight game, completed only two of seven passes for 12 yards and threw an interception before Bruce sent in Brent Offenbecher, who played his freshman season for Wake Forest. But he threw three interceptions and was sacked three times.

Gary Williams, Ohio State's senior split end, caught five passes, to run his consecutive game streak to 40, two short of the NCAA record.