Fairway Height Bentgrass Cultivar Trials
N. E. Christians and R. A. St. John
This is the fourth year of data from the Fairway Height Bentgrass Cultivar trial established in the fall of 1998. The area was maintained at a 0.5 in. mowing height. This is a National Turfgrass Evaluation (NTEP) trial and is being conducted at several research stations in the U.S. It contains 26 of the newest seeded cultivars and a number of experimentals. The cultivars are maintained with 4 lbs of N/1000 ft2/growing season. Fungicides are used as needed in a preventative program. Herbicides and insecticides also are applied as needed.
Visual quality ratings were taken from May through October 2001 (Table 1). Visual quality was assessed using a 9 to 1 scale with 9 = best, 6 = lowest acceptable, and 1 = worst quality. Spring greenup (Green) was evaluated in April 2000 using a 9 to 1 scale with 9 = best and 1 = worst greenup. Genetic color (Color) and spring density (dens) were evaluated in June 2001. Genetic color was based on a 9 to 1 scale with 9 = dark green and 1 = light green. Density (Dens) was also evaluated on a scale of 9 to 1, where 9 = greatest density.
Table 1. The 2001 Visual turf quality and other physical ratings for cultivars in the 1998 Fairway Height Bentgrass Trial.
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|
|
|
|
QUALITY |
||||||
|
NAME |
COLOR |
GREEN |
DENS |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
MEAN |
|
BACKSPIN |
7.3 |
6.0 |
7.7 |
7.3 |
7.0 |
8.3 |
8.3 |
6.3 |
7.0 |
7.4 |
|
BRIGHTON (SRX 1120) |
8.0 |
7.0 |
7.7 |
7.3 |
7.0 |
8.0 |
7.7 |
7.0 |
7.3 |
7.4 |
|
IMPERIAL |
8.0 |
6.3 |
8.0 |
7.7 |
7.3 |
8.3 |
7.3 |
6.7 |
7.3 |
7.4 |
|
L-93 |
7.0 |
6.7 |
7.7 |
8.0 |
7.0 |
7.3 |
8.0 |
6.7 |
7.0 |
7.3 |
|
SEASIDE II |
6.7 |
6.3 |
7.0 |
7.7 |
6.0 |
7.0 |
6.7 |
7.3 |
7.7 |
7.1 |
|
CENTURY |
7.0 |
6.3 |
7.7 |
6.0 |
7.3 |
7.7 |
7.3 |
6.7 |
7.0 |
7.0 |
|
PST-0VN |
7.7 |
6.7 |
6.3 |
6.3 |
6.3 |
6.7 |
7.7 |
7.0 |
7.3 |
6.9 |
|
GRAND PRIX |
6.7 |
6.0 |
7.3 |
6.3 |
7.0 |
7.0 |
7.0 |
6.3 |
7.0 |
6.8 |
|
PENN G-6 |
7.0 |
6.3 |
7.3 |
7.0 |
7.0 |
6.7 |
7.3 |
6.3 |
6.3 |
6.8 |
|
SR 1119 |
7.3 |
6.7 |
6.0 |
6.7 |
6.0 |
7.3 |
7.0 |
6.7 |
6.3 |
6.7 |
|
PROVIDENCE |
6.7 |
6.3 |
6.0 |
6.3 |
6.3 |
6.7 |
7.0 |
6.7 |
6.3 |
6.6 |
|
SRX 1BPAA |
6.7 |
6.7 |
7.0 |
6.3 |
6.3 |
7.3 |
7.3 |
6.7 |
5.7 |
6.6 |
|
TRUELINE |
7.0 |
7.0 |
6.0 |
6.3 |
6.0 |
6.0 |
7.7 |
6.0 |
6.3 |
6.4 |
|
PRINCEVILLE |
7.0 |
6.7 |
5.7 |
5.3 |
6.0 |
6.3 |
6.3 |
6.3 |
6.0 |
6.1 |
|
PENNCROSS |
7.0 |
6.0 |
6.3 |
5.0 |
6.3 |
6.0 |
5.7 |
5.7 |
6.3 |
5.8 |
|
PENNEAGLE |
6.7 |
6.3 |
5.3 |
4.7 |
5.0 |
6.3 |
6.7 |
6.0 |
5.7 |
5.7 |
|
PST-9PM |
6.0 |
5.7 |
4.7 |
5.3 |
5.0 |
4.7 |
4.7 |
5.3 |
5.3 |
5.1 |
|
RADIANCE (PST-9HG) |
6.0 |
6.3 |
5.7 |
4.7 |
5.3 |
4.7 |
5.0 |
5.0 |
5.0 |
4.9 |
|
SRX 7MOBB |
5.3 |
6.0 |
6.7 |
4.7 |
5.0 |
4.7 |
5.3 |
4.3 |
4.7 |
4.8 |
|
ABT-COL-2 |
6.0 |
6.0 |
6.0 |
5.0 |
4.7 |
4.7 |
4.7 |
5.0 |
4.3 |
4.7 |
|
TIGER |
6.0 |
6.0 |
5.0 |
5.0 |
4.0 |
4.7 |
5.0 |
5.0 |
4.3 |
4.7 |
|
ISI AT-5 |
5.7 |
5.0 |
6.0 |
4.7 |
5.3 |
4.0 |
4.7 |
4.3 |
4.7 |
4.6 |
|
SR 7100 |
6.0 |
6.0 |
5.3 |
4.7 |
4.7 |
4.3 |
4.7 |
4.3 |
4.7 |
4.6 |
|
GOLFSTAR |
6.0 |
5.0 |
4.0 |
4.0 |
4.3 |
4.3 |
4.7 |
4.3 |
5.3 |
4.5 |
|
SEASIDE |
6.0 |
5.7 |
4.0 |
3.3 |
4.3 |
5.0 |
4.7 |
4.3 |
4.3 |
4.3 |
|
SRX 7MODD |
5.7 |
6.0 |
6.3 |
4.3 |
4.3 |
3.7 |
4.7 |
4.3 |
4.3 |
4.3 |
|
LSD (0.05) |
1.0 |
1.1 |
1.1 |
1.1 |
1.1 |
0.9 |
1.1 |
1.0 |
1.0 |
0.6 |
 |
ISU Horticulture:Publications:2002 Turfgrass Report | College of Agriculture |
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