16. 0 ft
1 ft
2 ft
3 ft
4 ft
5 ft
6 ft
7 ft
8 ft
9 ft
10 ft
3-Sep 9-Sep 15-Sep 21-Sep 27-Sep 3-Oct 9-Oct 15-Oct 21-Oct 27-Oct 2-Nov
Avg Temp Precep Control 1x/Wk 3x/Wk
20. Stimp Meter Pelz Meter Difference
Control + 1’ 3’’ + 2’ + 9’’
1x/week + 1’ 7’’ + 2’ 9’’ + 1’ 2’’
3x/week + 2’ + 2’ 9’’ + 9’’
Stimp
difference
Correct
response
Partially correct
response
Incorrect
response
6 inch 18% 47% 35%
12 inch 55% 21% 24%
If Change in green speed < 6 in. golfer can’t perceive difference in green speed
(Karcher et al., 2001)
If Change in green speed > 6 in. golfer can perceive difference in green speed
(Karcher et al., 2001)
21.
22.
23. Beard, J.B. 2005. Beard's Turfgrass Encyclopedia For Golf Courses, Grounds,
Lawns, Sports Fields. Michigan State University Press.
Collins, Mark. "Question about Experiment Plot @ HTRC." Message to
Michael McKeel. 22 Nov 2013. E-mail.
Karcher, D., Nikolai, T., and Calhoun, R. 2001. Golfer's perceptions of greens
speeds vary: Over typical Stimpmeter distances, golfers are only
guessing when ball-roll differences are less than 6 inches. Golf
Course Manage. 69:57-60.
Nikolai, Thomas A. 2004. Golf Course Management. April. 72(4): p. 121-124.
Pelz, D. 2002. p. 748-760. In: Thain, Eric, ed. Science and Golf IV. London:
Routledge.