PROBLEM TO BE SOLVED: To avoid seedlings to be transplanted from being pushed over by preventing mud from sticking to wheel caps set to the front wheels of a sulky rice plant seedling transplanter. SOLUTION: In a sulky rice plant seedling transplanter in which a transplant working unit is set to the rear of tractor having the front wheels and the rear wheels and the front wheels are steered with a handle, a boss 13 and a rim 14 having a tire 16 fitted thereto are connected with a plurality of spokes 15 in the front wheels, and wheel caps 17 are attached to the outsides of the front wheels to cover the spaces A between individual spokes. In addition, a plurality of air holes 23 are bored on the wheel caps 17 so that the holes may oppose to the spaces A to prevent mud from sticking thereto.
