Fairway Height Bentgrass Cultivar Trials - Established 1998
Nick E. Christians and Rodney A. St. John
This is the third 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, 2000 (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, 2000. Genetic color was based on a 9 to 1 scale with 9 = dark green and 1 = light green. Density values are a visual rating of the density of the various cultivars collected in June with 9 = greatest density and 1 = lowest density.
Table 1. Visual turf quality and other physical ratings for cultivars in the 1998 Fairway Height Bentgrass Trial.
|
Quality |
|||||||||||
|
Cultivar |
Color |
Green |
Dens |
May |
June |
July |
Aug |
Sept |
Oct |
Mean |
|
|
1 |
Grand Prix |
7.7 |
6.7 |
7.3 |
7.3 |
7.0 |
6.7 |
7.3 |
7.7 |
6.3 |
7.1 |
|
2 |
Backspin |
7.3 |
7.7 |
7.7 |
6.3 |
6.7 |
6.7 |
6.7 |
8.0 |
7.0 |
6.9 |
|
3 |
Imperial |
7.7 |
7.7 |
7.0 |
6.7 |
6.7 |
6.7 |
7.3 |
7.7 |
6.7 |
6.9 |
|
4 |
Seaside II |
7.3 |
6.3 |
6.3 |
7.7 |
6.3 |
7.0 |
6.3 |
7.3 |
7.0 |
6.9 |
|
5 |
Century |
7.3 |
7.7 |
7.0 |
7.3 |
6.7 |
6.7 |
6.7 |
7.0 |
6.3 |
6.8 |
|
6 |
Providence |
6.3 |
6.7 |
6.3 |
6.3 |
6.0 |
6.3 |
7.0 |
8.0 |
6.7 |
6.7 |
|
7 |
L-93 |
6.7 |
6.3 |
6.7 |
6.0 |
6.3 |
6.0 |
6.7 |
7.7 |
6.7 |
6.6 |
|
8 |
SR 1119 |
6.7 |
7.0 |
5.7 |
6.0 |
6.0 |
6.7 |
6.7 |
6.7 |
6.3 |
6.4 |
|
9 |
SRX 1120 |
7.3 |
6.7 |
7.0 |
5.7 |
6.0 |
6.7 |
7.0 |
7.0 |
6.0 |
6.4 |
|
10 |
PST-OVN |
7.0 |
6.7 |
6.3 |
6.3 |
6.3 |
6.0 |
6.3 |
7.0 |
6.0 |
6.3 |
|
11 |
Penn G-6 |
6.7 |
7.3 |
6.3 |
6.0 |
7.0 |
6.0 |
6.0 |
6.7 |
5.7 |
6.2 |
|
12 |
Trueline |
7.0 |
6.3 |
5.3 |
5.3 |
6.0 |
6.0 |
6.0 |
7.3 |
6.7 |
6.2 |
|
13 |
SRX 1BPAA |
7.0 |
6.3 |
5.3 |
5.3 |
5.7 |
5.7 |
6.0 |
6.3 |
5.7 |
5.8 |
|
14 |
Penneagle |
6.0 |
6.7 |
6.3 |
5.7 |
6.0 |
5.3 |
6.0 |
5.7 |
5.7 |
5.7 |
|
15 |
Penncross |
6.7 |
6.7 |
5.7 |
5.3 |
6.7 |
5.3 |
5.3 |
4.7 |
5.0 |
5.4 |
|
16 |
Princeville |
6.7 |
6.3 |
5.3 |
5.0 |
6.0 |
4.7 |
5.7 |
5.3 |
5.7 |
5.4 |
|
17 |
Radiance* (PST-9HG) |
7.3 |
6.3 |
4.7 |
4.3 |
5.3 |
4.3 |
5.0 |
4.7 |
4.3 |
4.7 |
|
18 |
Tiger |
7.0 |
5.0 |
5.0 |
4.7 |
4.7 |
4.0 |
4.0 |
4.3 |
5.7 |
4.6 |
|
19 |
ISI AT-5* |
7.0 |
5.3 |
5.3 |
4.3 |
5.0 |
4.0 |
4.3 |
4.7 |
4.3 |
4.4 |
|
20 |
SR 7100* |
6.7 |
5.0 |
6.0 |
4.3 |
5.0 |
4.0 |
4.0 |
4.3 |
5.0 |
4.4 |
|
21 |
PST-9PM* |
6.7 |
5.3 |
4.0 |
4.3 |
4.7 |
3.7 |
4.3 |
4.3 |
4.7 |
4.3 |
|
22 |
SRX 7MOBB* |
7.0 |
5.7 |
4.3 |
4.3 |
4.7 |
3.7 |
4.7 |
4.0 |
4.3 |
4.3 |
|
23 |
ABT-COL-2* |
6.0 |
4.7 |
4.3 |
4.3 |
4.3 |
3.7 |
4.7 |
4.0 |
4.3 |
4.2 |
|
24 |
Golfstar** |
5.7 |
4.7 |
3.7 |
3.7 |
4.3 |
3.7 |
4.3 |
4.0 |
5.0 |
4.2 |
|
25 |
Seaside |
5.3 |
5.7 |
4.0 |
3.7 |
4.3 |
4.0 |
4.3 |
3.7 |
4.7 |
4.1 |
|
26 |
SRX 7MODD* |
7.0 |
5.0 |
4.0 |
4.3 |
4.0 |
3.3 |
3.7 |
4.7 |
4.7 |
4.1 |
|
LSD(0.05) |
1.8 |
0.9 |
1.2 |
0.8 |
1.1 |
1.0 |
0.9 |
1.2 |
1.9 |
0.6 |
|
*Colonial bentgrass
**Idaho bentgrass
Color (Genetic color): 9 = dark green and 1 = light green. Green (Spring Greenup): 9 = best and 1 = worst greenup. Density (dens) values are a visual rating of the density of the various cultivars collected in June with 9 = greatest density and 1 = lowest density.
Visual quality was assessed with a 9 to 1 scale with 9 = best, 6 = lowest acceptable, and 1 = worst quality.
NS = means are not significantly different at the 0.05 level.