Adam Scott’s reign over the golf world began with a trip on his coronation robe.Colonial showed no reverence to the world’s new No. 1-ranked player, who stumbled around Hogan’s Alley with a 1-over par 71 Thursday at the Crowne Plaza Invitational at Colonial.Scott was 4 over on his front nine — the back of Colonial — and now has adjusted his goals this week to first surviving Friday’s cut line.The morning round started with a bogey on No. 11, the 635-yard par 5 that played as one of the easiest holes in the first round, after his tee shot went left and found a fairway trap. He couldn’t get up and down for par on 15, had three putts from 57 feet on No. 17 and failed to save par from a greenside trap at 18.“I thought I was hitting plenty of good shots on the first nine,” said Scott, who recovered with three birdies on his back nine. “Made a couple errors into the greens and compounded by not getting up and down.“It’s a testing course.”The Aussie native and 2013 Masters champion with three top 10s in seven starts in 2014 said he felt no different teeing off as the world’s No. 1 days after deposing Tiger Woods, who held the crown for 60 consecutive weeks.Colonial marks Scott’s third event since the Arnold Palmer Invitational. He played the Masters and then The Players Championship, where he finished 38th in the second week of May.“You’ve got to really play sharp,” Scott said of Colonial. “Even though you’ve got a wedge, you have to be spot on.”College testTCU amateur Julien Brun probably learned a lot more on Thursday than he would have at the NCAA national championships, which he declined in order to accept a sponsor’s exemption at Colonial.Brun, a junior from France who enjoyed the support of teammates and Horned Frog fans outfitted in purple in the gallery, shot a 7-over 77 in the first round.“I was nervous for sure but was a really cool experience,” said Brun, who shot 8-over 43 on his front nine but settled with a bogey-free back nine, which included a birdie at No. 6.Though TCU fell short as a team in the NCAA regionals, Brun earned an individual berth to the NCAA championships being played this week in Kansas.“If the team would have made it, it would have been a hard decision,” Brun said. “In college, you play for your team and your teammates. As an individual, just going out there for myself and for my career, I can build better here.”Sand manFranklin Corpening’s good round figuratively went down in quicksand when his ball plugged in a greenside trap at the par-3 No. 16.He needed five shots to get out of the trap and took a quintuple-bogey 8 that turned a 1 under into 4 over.“A little bit of bad luck,” said Corpening, a TCU and Fort Worth Paschal High School product. “It was plugged to begin with.”Briefly• Boo Weekley’s defense of his 2013 title began with a 1-over 71, lowlighted by a double bogey on the par-5 11th.• HP Byron Nelson Championship winner Brendon Todd, seeking to join Ben Hogan as champions in both Dallas and Fort Worth in the same season, shot 1 under, four back of leader Dustin Johnson.• Rickie Fowler, complaining of flu-like symptoms, shot a first-round high 10-over 80.