Fairway Height Bentgrass Cultivar Trials - Established 1998
Nick E. Christians and Rodney A. St. John
This is the first full 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 1999 (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 1999 using a 9 to 1 scale with 9 = best and 1 = worst greenup. Genetic color (Color), leaf texture (Leaf), and spring density (dense) were evaluated in June 1999. Genetic color was based on a 9 to 1 scale with 9 = dark green and 1 = light green. Leaf texture was estimated using a 9 to 1 scale with 9 = fine and 1 = coarse texture. Spring density values represent the percentage area per plot covered by bentgrass.
Table 1. 1999 Visual turf quality data and other physical ratings for cultivars in the 1998 Fairway Height Bentgrass Trial.
|
Quality |
||||||||||||
|
Cultivar |
Color |
Green |
Leaf |
Dense |
May |
June |
July |
Aug |
Sept |
Oct |
Mean |
|
|
1 |
Century |
7.0 |
5.7 |
6.7 |
7.3 |
6.0 |
6.3 |
6.3 |
7.3 |
7.3 |
7.0 |
6.7 |
|
2 |
Imperial |
7.0 |
6.0 |
7.0 |
6.7 |
5.7 |
5.3 |
7.0 |
7.3 |
8.0 |
7.0 |
6.7 |
|
3 |
Backspin |
7.0 |
6.0 |
7.0 |
7.3 |
5.7 |
6.3 |
6.3 |
6.7 |
7.3 |
7.0 |
6.6 |
|
4 |
Seaside II |
6.7 |
6.0 |
6.7 |
6.0 |
5.7 |
6.0 |
6.3 |
6.3 |
7.3 |
6.7 |
6.4 |
|
5 |
Penn G-6 |
6.7 |
5.7 |
6.7 |
6.3 |
5.3 |
6.0 |
6.0 |
6.7 |
6.7 |
7.0 |
6.3 |
|
6 |
Grand Prix |
6.3 |
6.0 |
6.0 |
5.7 |
4.7 |
6.0 |
6.0 |
6.7 |
7.0 |
6.7 |
6.2 |
|
7 |
Providence |
6.3 |
6.3 |
7.0 |
7.0 |
5.3 |
5.7 |
6.0 |
6.3 |
7.0 |
7.0 |
6.2 |
|
8 |
PST-OVN |
6.3 |
6.3 |
6.3 |
6.3 |
6.0 |
5.7 |
6.0 |
6.3 |
6.3 |
6.3 |
6.1 |
|
9 |
SR 1119 |
6.0 |
6.7 |
6.0 |
6.0 |
5.3 |
5.3 |
6.0 |
6.7 |
6.7 |
6.3 |
6.1 |
|
10 |
SRX 1120 |
6.7 |
6.0 |
6.7 |
5.7 |
4.7 |
4.7 |
6.0 |
7.0 |
7.0 |
6.3 |
5.9 |
|
11 |
Penncross |
6.0 |
6.0 |
6.0 |
6.3 |
5.3 |
5.7 |
5.7 |
6.7 |
5.7 |
5.7 |
5.8 |
|
12 |
SRX 1BPAA |
6.3 |
6.0 |
5.7 |
5.3 |
4.3 |
4.7 |
6.3 |
6.3 |
6.3 |
6.7 |
5.8 |
|
13 |
Trueline |
6.3 |
6.3 |
6.3 |
5.7 |
5.3 |
5.0 |
6.0 |
6.0 |
6.3 |
6.3 |
5.8 |
|
14 |
L-93 |
7.3 |
6.0 |
6.0 |
6.0 |
5.0 |
5.3 |
5.3 |
6.0 |
6.0 |
6.7 |
5.7 |
|
15 |
Penneagle |
7.0 |
5.3 |
7.0 |
5.0 |
5.3 |
6.0 |
5.7 |
6.0 |
5.7 |
5.3 |
5.7 |
|
16 |
Princeville |
5.7 |
6.0 |
5.3 |
5.7 |
4.7 |
5.3 |
5.0 |
5.3 |
5.7 |
5.7 |
5.3 |
|
17 |
PST-9HG* |
7.0 |
6.0 |
6.0 |
5.3 |
4.3 |
4.7 |
4.3 |
4.7 |
5.0 |
6.0 |
4.8 |
|
18 |
Seaside |
5.3 |
6.3 |
5.3 |
5.3 |
4.7 |
4.7 |
4.7 |
4.7 |
4.3 |
4.7 |
4.6 |
|
19 |
SR 7100* |
7.7 |
5.7 |
7.0 |
5.3 |
3.7 |
5.0 |
4.3 |
4.7 |
4.3 |
5.3 |
4.6 |
|
20 |
ISI AT-5* |
7.0 |
6.0 |
6.3 |
4.3 |
3.7 |
4.0 |
4.7 |
4.3 |
3.7 |
5.7 |
4.3 |
|
21 |
PST-9PM* |
7.0 |
5.7 |
5.3 |
5.3 |
4.3 |
4.7 |
3.7 |
3.7 |
3.7 |
5.0 |
4.2 |
|
22 |
Tiger |
7.7 |
5.7 |
7.3 |
4.7 |
4.0 |
4.3 |
4.3 |
4.7 |
3.3 |
4.7 |
4.2 |
|
23 |
SRX 7 MOBB* |
7.7 |
6.7 |
7.0 |
5.3 |
4.0 |
4.7 |
4.3 |
4.0 |
3.3 |
4.3 |
4.1 |
|
24 |
ABT-COL-2* |
6.7 |
5.7 |
6.3 |
4.3 |
3.7 |
4.3 |
3.7 |
3.3 |
3.3 |
4.7 |
3.8 |
|
25 |
SRX 7 MODD* |
7.3 |
6.3 |
6.0 |
4.7 |
3.7 |
3.7 |
3.7 |
3.7 |
3.7 |
4.3 |
3.8 |
|
26 |
Golfstar** |
6.7 |
6.0 |
6.0 |
4.0 |
3.3 |
3.7 |
3.7 |
3.7 |
3.3 |
4.3 |
3.7 |
|
LSD(0.05) |
2.0 |
NS |
NS |
1.8 |
1.1 |
1.1 |
1.0 |
0.8 |
1.0 |
1.0 |
0.6 |
|
*Colonial bentgrass
**Idaho bentgrass
Color (Genetic color): 9 = dark green and 1 = light green. Green (Greenup): 9 = best and 1 = worst greenup. Leaf (Leaf texture): 9 = fine and 1 = coarse. Spring density (dense) represents the percentage area per plot covered by bentgrass.
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.
|
ISU Horticulture:Publications:2000 Turfgrass Report | College of Agriculture |