BATON ROUGE, LA., JUNE 5 -- Texas A&M's Floyd Heard, the collegiate record holder, won the men's 200-meter dash for the second straight year tonight in the NCAA outdoor track and field championships.

Heard, who was ranked No. 1 in the world last year, was timed in a wind-aided 20.03 seconds in becoming the second consecutive Southwest Conference runner to take the NCAA title twice in a row. Houston's Kirk Baptiste won the championship in 1984 and 1985.

Heard, who set the NCAA mark of 19.95 in winning the SWC title, broke away from a bunched field in the stretch and went on to win by about four meters over Danny Peebles of North Carolina State.

Peebles, the Atlantic Coast Conference champion, was timed in 20.16. Henry Thomas of UCLA was third in 20.22.

Louisiana State's Sheila Echols in the women's long jump, the men's 400-meter relay team from Texas Christian and the women's 400-meter relay team from Florida State came up with world-best performances for 1987.

Echols jumped 22 feet 9 1/4 inches on her first attempt to surpass the year's previous best of 22-7 by U.S. record holder Jackie Joyner-Kersee and the meet record of 22-1 set by Carol Lewis of Houston in 1985.

TCU's quartet of Roscoe Tatum, Andrew Smith, Greg Sholars and Raymond Stewart took the 400 relay in 38.82 seconds, edging Texas A&M by three-hundredths of a second. Florida State's team of Janet Levy, Janet Davis, Andrea Thompson and Michele Finn was clocked in 43.19.

Meet records fell in the women's shot put and women's 3,000 meters. Regina Cavanaugh of Rice became the first woman in the Division I championships to win her event three straight years, sending the shot 56 feet 10 3/4 inches to beat her 1986 mark of 56-9 1/2.

Vicki Huber of Villanova won the 3,000 in 8:54.41, easily bettering the record of 8:59.57 set by Cathy Branta of Wisconsin in 1984.

Linetta Wilson of Nebraska scored an upset in the women's 400-meter hurdles. Wilson overcame Mimi King of Texas in the final 10 meters in winning in 55.55.

Other men's winners included Texas Southern's Paul Emordi in the long jump with a lifetime best of 27-0 3/4, Fresno State's Doug Fraley in the pole vault at 18-5 1/2, Texas' Dag Wennlund in the javelin at 252-10, Arkansas' Joe Falcon in the 10,000 meters in 29:10.66, Oregon's Dan Nelson in the 3,000 steeplechase in 8:35.37 and Seton Hall's Tracy Baskin in the 800 in 1:46.58.