Perennial Ryegrass Studies - Established 1994 and 1999
Rodney A. St. John and Nick E. Christians
This was the final year of the trial that began in the fall of 1994 with the establishment of 96 cultivars of perennial ryegrass at the Iowa State University Horticulture Research Station. The study was established on an irrigated area that was maintained at a 2-inch mowing height and fertilized with 3 to 4 lb N/1000 ft2/yr. The area received herbicide treatments as required.
Cultivars were evaluated for turf quality May through August of 1999. Visual quality was assessed using a 9 to 1 scale with 9 = best, 6 = lowest acceptable, and 1 = worst quality. The values listed under each month in Table 1 are the averages of ratings made on three replicated plots for the three studies. Yearly means of data from each month are listed in the last column. The cultivars are listed in descending order of average quality.
Data for genetic color (Gcol), spring greenup (Grn), and leaf texture (Leaf) also are included. Genetic color was rated using a 9 to 1 scale with 9 = dark and 1 = light green. Spring greenup was estimated using a 9 to 1 scale with 9 = green and 1 = dormant turf. Leaf texture was assessed with a 9 to 1 scale with 9 = fine and 1 = coarse texture (Table 1).
A new Perennial ryegrass trial was initiated in Fall 1999 with the establishment of 134 cultivars at the research station. The experimental area was prepared and maintained under the same guidelines as the previous study.
Seedling vigor and percentage living ground cover data were taken in October 1999. Seedling vigor was measured using a 9 to 1 scale with 9 = most vigorous and 1 = worst. Percentage living ground cover values represent the percentage area per plot covered by ryegrass. The cultivars are presented in descending order of percentage living ground cover (Table 2).
Table 1. 1999 visual quality1 and other ratings2 for the 1994 National Perennial Ryegrass Study.
|
________________ Quality ________________ |
|||||||||
|
Cultivar |
Gcol |
Grn |
Leaf |
May |
June |
July |
Aug |
Mean |
|
|
1 |
Brightstar II (PST-2M3) |
9.0 |
6.7 |
8.3 |
9.0 |
9.0 |
7.0 |
7.0 |
8.0 |
|
2 |
MB 44 |
9.0 |
7.0 |
8.7 |
9.0 |
9.0 |
7.0 |
6.7 |
7.9 |
|
3 |
Roadrunner (PST-2ET) |
8.0 |
7.0 |
8.0 |
7.0 |
7.7 |
6.0 |
6.3 |
7.8 |
|
4 |
Prelude III (LRF-94-B6) |
8.7 |
7.0 |
8.0 |
8.3 |
9.0 |
7.0 |
6.7 |
7.8 |
|
5 |
Palmer III (LRF-94-MPRH) |
9.0 |
6.7 |
8.0 |
8.3 |
9.0 |
7.0 |
6.7 |
7.8 |
|
6 |
Pennant II (MB 42) |
9.0 |
6.7 |
8.0 |
8.3 |
8.7 |
6.7 |
6.7 |
7.6 |
|
7 |
MB 45 |
9.0 |
7.0 |
8.0 |
8.3 |
9.0 |
6.7 |
6.3 |
7.6 |
|
8 |
Wind Dancer (MB 46) |
8.7 |
7.0 |
8.0 |
8.3 |
8.7 |
6.7 |
6.7 |
7.6 |
|
9 |
Catalina (PST-GH-94) |
9.0 |
7.7 |
8.3 |
8.3 |
8.3 |
6.7 |
6.7 |
7.5 |
|
10 |
Advantage |
8.7 |
7.3 |
8.0 |
8.0 |
8.7 |
6.7 |
6.7 |
7.5 |
|
11 |
Premier II (BAR USA 94-11) |
8.3 |
7.0 |
8.0 |
8.0 |
8.7 |
6.3 |
7.0 |
7.5 |
|
12 |
Chaparral (PST-2DLM) |
8.0 |
7.0 |
7.7 |
8.0 |
8.3 |
6.3 |
7.0 |
7.4 |
|
13 |
Repell III (LRF-94-C7) |
8.7 |
7.7 |
8.0 |
7.7 |
8.7 |
6.7 |
6.7 |
7.4 |
|
14 |
Calypso II |
8.3 |
7.3 |
8.0 |
8.3 |
8.3 |
6.3 |
6.3 |
7.3 |
|
15 |
J-1706 |
8.0 |
6.0 |
8.0 |
7.7 |
8.7 |
6.7 |
6.0 |
7.3 |
|
16 |
LRF-94-CB |
8.3 |
6.7 |
8.0 |
8.0 |
8.3 |
6.3 |
6.7 |
7.3 |
|
17 |
Excel (MB 1-5) |
8.3 |
8.0 |
8.3 |
8.0 |
8.7 |
6.0 |
6.3 |
7.3 |
|
18 |
Majesty (MB 43) |
8.3 |
7.3 |
8.0 |
8.0 |
8.3 |
6.3 |
6.3 |
7.3 |
|
19 |
Line Drive (MB 47) |
9.0 |
8.0 |
8.0 |
8.0 |
8.3 |
6.3 |
6.7 |
7.3 |
|
20 |
Elf |
8.3 |
7.7 |
7.7 |
7.7 |
8.3 |
6.3 |
6.3 |
7.2 |
|
21 |
Citation III (PST-2DGR) |
8.3 |
8.0 |
8.0 |
8.0 |
8.0 |
6.3 |
6.3 |
7.2 |
|
22 |
Secretariat (RPBD) |
8.7 |
7.7 |
8.0 |
8.0 |
8.3 |
6.3 |
6.0 |
7.2 |
|
23 |
Imagine |
8.3 |
7.3 |
8.0 |
8.3 |
8.3 |
6.0 |
6.0 |
7.2 |
|
24 |
Divine |
9.0 |
7.7 |
8.3 |
8.0 |
8.3 |
6.3 |
6.0 |
7.2 |
|
25 |
Dancer |
8.0 |
7.0 |
8.0 |
7.7 |
8.0 |
6.3 |
6.3 |
7.1 |
|
26 |
Sonata (PST-2R3) |
8.3 |
7.0 |
8.0 |
7.7 |
8.3 |
6.3 |
6.0 |
7.1 |
|
27 |
MardiGras (ZPS-2NV) |
8.7 |
7.0 |
8.0 |
8.3 |
8.0 |
6.0 |
6.0 |
7.1 |
|
28 |
Legacy II (Lesco-TWF) |
8.3 |
6.0 |
8.0 |
8.0 |
8.0 |
6.0 |
6.3 |
7.1 |
|
29 |
Panther (ZPS-PR1) |
8.3 |
6.7 |
8.0 |
7.7 |
8.0 |
6.3 |
6.3 |
7.1 |
|
30 |
Wizard (MB 41) |
8.0 |
9.0 |
8.0 |
7.3 |
8.0 |
6.3 |
6.7 |
7.1 |
|
31 |
Precision |
7.7 |
7.0 |
8.0 |
8.0 |
7.7 |
6.3 |
6.0 |
7.0 |
|
32 |
Esquire |
7.7 |
7.3 |
8.0 |
8.3 |
8.0 |
5.7 |
6.0 |
7.0 |
|
33 |
Omega 3 (ZPS-2DR-94) |
8.7 |
7.3 |
8.3 |
8.0 |
8.0 |
6.0 |
6.0 |
7.0 |
|
34 |
Quickstart |
8.0 |
6.3 |
8.0 |
7.3 |
8.3 |
6.3 |
6.0 |
7.0 |
|
35 |
Brightstar |
7.7 |
7.0 |
8.0 |
8.0 |
7.7 |
6.0 |
6.3 |
7.0 |
|
36 |
Head Start (Pick PR 84-91) |
8.0 |
6.0 |
7.3 |
8.0 |
7.7 |
6.0 |
6.3 |
7.0 |
|
37 |
Koos 93-6 |
8.0 |
7.0 |
8.0 |
7.3 |
8.3 |
6.3 |
6.0 |
7.0 |
|
38 |
Pick Lp 102-92 |
8.7 |
7.0 |
8.0 |
7.3 |
8.3 |
6.3 |
6.0 |
7.0 |
|
39 |
Bar Er 5813 |
8.0 |
7.3 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
40 |
APR 124 |
8.0 |
6.3 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
41 |
Cutter |
7.7 |
8.0 |
8.0 |
7.3 |
8.0 |
6.3 |
6.0 |
6.9 |
|
42 |
WX3-91 |
8.3 |
7.0 |
8.0 |
7.7 |
7.7 |
6.0 |
6.3 |
6.9 |
|
43 |
WX3-93 |
8.0 |
6.7 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
44 |
Wind Star (PST-28M) |
8.3 |
6.3 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
45 |
Prizm |
8.3 |
7.3 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
46 |
Assure |
7.3 |
7.3 |
8.0 |
7.7 |
7.7 |
6.0 |
6.3 |
6.9 |
|
47 |
Nine-O-One |
8.0 |
7.3 |
8.0 |
7.7 |
8.0 |
6.0 |
6.0 |
6.9 |
|
48 |
Night Hawk |
8.3 |
7.0 |
8.0 |
8.0 |
7.7 |
6.0 |
6.0 |
6.9 |
|
49 |
PS-D-9 |
8.3 |
7.3 |
8.0 |
8.0 |
7.7 |
6.0 |
6.0 |
6.9 |
|
50 |
CAS-LP23 |
7.7 |
7.7 |
8.0 |
7.3 |
8.0 |
6.3 |
6.0 |
6.9 |
|
51 |
APR 131 |
8.3 |
7.3 |
8.0 |
7.0 |
7.7 |
6.3 |
6.0 |
6.8 |
|
52 |
Laredo |
8.0 |
7.3 |
8.0 |
7.7 |
8.0 |
5.7 |
6.0 |
6.8 |
|
53 |
Accent |
8.0 |
7.7 |
8.0 |
7.3 |
8.0 |
6.0 |
6.0 |
6.8 |
|
54 |
Top Gun (J-1703) |
8.0 |
6.7 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
55 |
Vivid |
8.3 |
7.0 |
8.0 |
7.0 |
8.0 |
6.0 |
6.0 |
6.8 |
|
56 |
Stardance (PST-2FE) |
8.3 |
6.7 |
8.0 |
7.3 |
8.0 |
6.0 |
6.0 |
6.8 |
|
57 |
Manhattan 3 |
8.0 |
7.0 |
8.0 |
7.3 |
8.0 |
6.0 |
6.0 |
6.8 |
|
58 |
Saturn II (ZPS-2ST) |
8.3 |
7.0 |
8.0 |
7.0 |
8.0 |
6.0 |
6.0 |
6.8 |
|
59 |
Academy (PC-93-1) |
7.7 |
7.0 |
8.0 |
7.7 |
7.7 |
6.0 |
6.0 |
6.8 |
|
60 |
ISI-MHB |
7.7 |
6.7 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
61 |
R2 (ISI-R2) |
8.7 |
7.0 |
8.3 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
62 |
Top Hat |
8.0 |
7.3 |
8.0 |
7.7 |
7.7 |
6.0 |
6.0 |
6.8 |
|
63 |
Blazer III (Pick 928) |
7.7 |
7.3 |
8.0 |
7.7 |
7.7 |
6.0 |
6.0 |
6.8 |
|
64 |
Williamsburg |
7.7 |
7.0 |
8.0 |
7.3 |
7.7 |
6.3 |
6.0 |
6.8 |
|
65 |
Riviera II |
7.3 |
7.3 |
8.0 |
7.7 |
7.3 |
6.0 |
6.0 |
6.8 |
|
66 |
DLP 1305 |
8.0 |
7.0 |
8.0 |
8.3 |
7.0 |
6.0 |
6.0 |
6.8 |
|
67 |
SR 4010 (SRX 4010) |
8.0 |
6.7 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
68 |
SR 4200 |
7.3 |
6.7 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
69 |
SR 4400 (SRX 4400) |
7.3 |
8.3 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
70 |
Omni |
7.7 |
7.0 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
71 |
Morning Star |
7.7 |
7.3 |
8.0 |
7.7 |
7.7 |
6.0 |
6.0 |
6.8 |
|
72 |
Pegasus |
7.7 |
7.7 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
73 |
Blackhawk (TMI-EXFLP94) |
7.3 |
7.0 |
8.0 |
7.3 |
7.7 |
6.0 |
6.0 |
6.8 |
|
74 |
Caddieshack (MED 5071) |
7.7 |
7.3 |
8.0 |
7.0 |
8.0 |
5.7 |
6.0 |
6.7 |
|
75 |
Navajo |
7.7 |
6.7 |
8.0 |
7.3 |
7.3 |
6.0 |
6.0 |
6.7 |
|
76 |
Stallion Supreme (PSI-E-1) |
8.0 |
8.0 |
8.0 |
7.0 |
7.7 |
6.0 |
6.0 |
6.7 |
|
77 |
WVPB-93-KFK |
7.3 |
6.7 |
8.0 |
7.3 |
7.7 |
5.7 |
6.0 |
6.7 |
|
78 |
Passport (PST-2FF) |
7.7 |
6.7 |
8.0 |
7.3 |
7.3 |
6.0 |
6.0 |
6.7 |
|
79 |
Koos 93-3 |
8.0 |
6.0 |
8.0 |
7.0 |
7.7 |
6.0 |
6.0 |
6.7 |
|
80 |
Stallion Select |
7.7 |
7.3 |
7.7 |
7.3 |
7.3 |
6.0 |
6.0 |
6.7 |
|
81 |
PST-2CB |
8.0 |
7.3 |
7.7 |
7.3 |
7.3 |
6.0 |
6.0 |
6.7 |
|
82 |
Edge |
7.3 |
6.7 |
8.0 |
7.0 |
7.7 |
6.0 |
5.7 |
6.6 |
|
83 |
WVPB-PR-C-2 |
6.7 |
6.7 |
8.0 |
7.0 |
8.0 |
5.7 |
5.7 |
6.6 |
|
84 |
DSV NA 9402 |
7.0 |
7.0 |
7.7 |
8.3 |
6.7 |
5.7 |
5.3 |
6.5 |
|
85 |
APR 066 |
6.7 |
7.0 |
7.7 |
6.7 |
7.3 |
6.0 |
6.0 |
6.5 |
|
86 |
Express |
7.7 |
8.3 |
8.0 |
7.0 |
7.3 |
6.0 |
5.7 |
6.5 |
|
87 |
MVF-4-1 |
7.0 |
6.7 |
8.0 |
6.7 |
7.3 |
6.0 |
6.0 |
6.5 |
|
88 |
Figaro |
7.0 |
6.0 |
7.3 |
7.7 |
6.7 |
6.0 |
5.7 |
6.5 |
|
89 |
Nobility |
7.0 |
7.3 |
7.7 |
6.7 |
7.3 |
6.0 |
6.0 |
6.5 |
|
90 |
Achiever |
7.7 |
7.7 |
8.0 |
7.0 |
7.3 |
5.7 |
5.7 |
6.4 |
|
91 |
APR 106 |
7.0 |
7.0 |
8.0 |
7.7 |
7.0 |
5.3 |
5.7 |
6.4 |
|
92 |
WVPB 92-4 |
7.3 |
6.7 |
8.0 |
6.7 |
7.0 |
6.0 |
6.0 |
6.4 |
|
93 |
Saturn |
6.7 |
6.3 |
8.0 |
7.0 |
7.0 |
6.0 |
5.7 |
6.4 |
|
94 |
DSV NA 9401 |
6.3 |
7.0 |
8.0 |
7.3 |
6.3 |
5.7 |
5.3 |
6.2 |
|
95 |
Pennfine |
6.3 |
7.7 |
7.0 |
6.0 |
6.3 |
5.7 |
5.0 |
5.8 |
|
96 |
Linn |
5.3 |
6.3 |
6.3 |
6.0 |
5.0 |
5.0 |
5.3 |
5.3 |
|
LSD(0.05) |
1.0 |
NS |
0.4 |
1.0 |
0.9 |
0.6 |
0.5 |
0.5 |
|
1Visual quality was assessed using a 9 to 1 scale with 9 = best quality, 6 = lowest acceptable quality, and 1 = worst quality.
2Genetic color (Gcol) was rated using a 9 to 1 scale with 9 = dark and 1 = light green. Spring greenup (Grn) was determined using a 9 to 1 scale with 9 = green and 1 = dormant. Leaf texture (Leaf) was assessed with a 9 to 1 scale with 9 = fine and 1 = coarse texture.
NS = means are not significantly different at the 0.05 level.
Table 2. 1999 seedling vigor and percentage living cover1 for the 1999 National Perennial Ryegrass Study.
|
Cultivar |
Seedling vigor |
Percentage (%) living cover |
|
|
1 |
Majesty |
8.3 |
73.3 |
|
2 |
Affirmed |
8.3 |
73.3 |
|
3 |
JR-151 |
8.3 |
73.3 |
|
4 |
DP 17-9391 |
8.7 |
73.3 |
|
5 |
Passport |
8.0 |
70.0 |
|
6 |
APR 1233 |
8.0 |
70.0 |
|
7 |
Exacta |
8.0 |
70.0 |
|
8 |
JR-187 |
8.0 |
70.0 |
|
9 |
Line Drive |
8.7 |
70.0 |
|
10 |
Linn |
9.0 |
66.7 |
|
11 |
Buccaneer |
8.7 |
66.7 |
|
12 |
YatsuGreen |
8.7 |
66.7 |
|
13 |
Affinity |
8.3 |
66.7 |
|
14 |
Roberts-627 |
8.0 |
66.7 |
|
15 |
Barlennium |
8.0 |
66.7 |
|
16 |
JR-128 |
8.0 |
66.7 |
|
17 |
Pick PRNGS |
8.0 |
66.7 |
|
18 |
PST-2BR |
8.0 |
66.7 |
|
19 |
Palmer III |
8.0 |
66.7 |
|
20 |
SRX 4801 |
8.0 |
66.7 |
|
21 |
Calypso |
8.3 |
63.3 |
|
22 |
Racer |
8.3 |
63.3 |
|
23 |
Fiesta III |
8.0 |
63.3 |
|
24 |
Headstart |
8.0 |
63.3 |
|
25 |
Paragon |
8.0 |
63.3 |
|
26 |
WVPB-R-84 |
8.0 |
63.3 |
|
27 |
Nexus |
8.3 |
63.3 |
|
28 |
LTP 98-501 |
8.0 |
63.3 |
|
29 |
CIS-PR-85 |
8.0 |
63.3 |
|
30 |
Ascend |
7.7 |
63.3 |
|
31 |
Pleasure XL |
8.3 |
63.3 |
|
32 |
APR 1235 |
8.0 |
63.3 |
|
33 |
Premier II |
8.0 |
63.3 |
|
34 |
APR 1231 |
8.0 |
63.3 |
|
35 |
ABT-99-4.629 |
8.0 |
63.3 |
|
36 |
BY-100 |
8.3 |
63.3 |
|
37 |
Pick RC2 |
8.0 |
60.0 |
|
38 |
Koos R-71 |
8.0 |
60.0 |
|
39 |
WVPB-R-82 |
8.3 |
60.0 |
|
40 |
R8000 |
7.7 |
60.0 |
|
41 |
Divine |
7.7 |
60.0 |
|
42 |
Premier |
8.7 |
60.0 |
|
43 |
PST-2RT |
7.7 |
60.0 |
|
44 |
PST-CATS |
8.0 |
60.0 |
|
45 |
Manhattan 3 |
7.7 |
60.0 |
|
46 |
Phantom |
7.7 |
60.0 |
|
47 |
Cathedral II |
7.7 |
60.0 |
|
48 |
Pennant II |
7.7 |
60.0 |
|
49 |
Allsport |
8.0 |
60.0 |
|
50 |
Wilmington |
7.7 |
60.0 |
|
51 |
6011 |
7.7 |
60.0 |
|
52 |
APR 1232 |
7.3 |
60.0 |
|
53 |
Elfkin |
7.3 |
60.0 |
|
54 |
SRX 4820 |
8.0 |
60.0 |
|
55 |
ABT-99-4.633 |
8.0 |
60.0 |
|
56 |
ABT-99-4.753 |
8.0 |
60.0 |
|
57 |
ABT-99-4.903 |
7.7 |
60.0 |
|
58 |
Jet |
8.0 |
60.0 |
|
59 |
LPR 98-143 |
8.0 |
56.7 |
|
60 |
LPR 98-144 |
7.7 |
56.7 |
|
61 |
Secretariat |
8.0 |
56.7 |
|
62 |
Promise |
7.0 |
56.7 |
|
63 |
APR 1234 |
7.7 |
56.7 |
|
64 |
APR 1236 |
7.7 |
56.7 |
|
65 |
DLF-LDD |
7.7 |
56.7 |
|
66 |
NJ-6401 |
8.0 |
56.7 |
|
67 |
CIS-PR-69 |
7.7 |
56.7 |
|
68 |
CIS-PR-78 |
7.7 |
56.7 |
|
69 |
CIS-PR-80 |
8.0 |
56.7 |
|
70 |
APR 1237 |
7.7 |
56.7 |
|
71 |
Churchill |
7.7 |
56.7 |
|
72 |
BAR 9 B2 |
7.7 |
56.7 |
|
73 |
JR-317 |
8.0 |
56.7 |
|
74 |
Edge |
8.0 |
56.7 |
|
75 |
Pick PR B-97 |
7.3 |
56.7 |
|
76 |
ABT-00-4.339 |
7.0 |
56.7 |
|
77 |
ABT-99-4.464 |
7.3 |
56.7 |
|
78 |
Panther |
7.7 |
56.7 |
|
79 |
DP LP-1 |
7.7 |
56.7 |
|
80 |
SRX 4120 |
8.0 |
56.7 |
|
81 |
ABT-99-4.115 |
7.7 |
56.7 |
|
82 |
ABT-99-4.560 |
7.7 |
56.7 |
|
83 |
PST-2JH |
7.7 |
56.7 |
|
84 |
ABT-99-4.461 |
7.3 |
56.7 |
|
85 |
Pick PR 1-94 |
7.7 |
53.3 |
|
86 |
Pizzazz |
7.7 |
53.3 |
|
87 |
Pick EX2 |
8.0 |
53.3 |
|
88 |
Pennington-11301 |
7.7 |
53.3 |
|
89 |
CIS-PR-75 |
7.3 |
53.3 |
|
90 |
CIS-PR-84 |
7.7 |
53.3 |
|
91 |
PST-2SLX |
7.3 |
53.3 |
|
92 |
PST-2CRL |
7.3 |
53.3 |
|
93 |
PST-2LA |
7.7 |
53.3 |
|
94 |
Carger II |
8.0 |
53.3 |
|
95 |
ABT-99-4.600 |
7.7 |
53.3 |
|
96 |
ABT-99-4.815 |
7.7 |
53.3 |
|
97 |
Seville II |
8.0 |
53.3 |
|
98 |
DP 17-9069 |
7.7 |
53.3 |
|
99 |
AG-P981 |
7.3 |
53.3 |
|
100 |
APR 776 |
7.3 |
53.3 |
|
101 |
SRX 4RHT |
7.3 |
53.3 |
|
102 |
CAS-LP84 |
7.3 |
53.3 |
|
103 |
EP57 |
7.3 |
53.3 |
|
104 |
ABT-99-4.709 |
7.3 |
53.3 |
|
105 |
CIS-PR-72 |
7.7 |
53.3 |
|
106 |
B1 |
7.7 |
50.0 |
|
107 |
Pick PR QH-97 |
7.3 |
50.0 |
|
108 |
Pick MDR |
7.7 |
50.0 |
|
109 |
PST-2CRR |
8.0 |
50.0 |
|
110 |
PST-2M4 |
7.7 |
50.0 |
|
111 |
Brightstar II |
7.3 |
50.0 |
|
112 |
Catalina |
7.3 |
50.0 |
|
113 |
ABT-99-4.721 |
6.7 |
50.0 |
|
114 |
DP 17-9496 |
8.3 |
50.0 |
|
115 |
MP58 |
7.7 |
50.0 |
|
116 |
MP103 |
7.3 |
50.0 |
|
117 |
PST-2L96 |
7.0 |
50.0 |
|
118 |
Radiant |
7.3 |
50.0 |
|
119 |
PST-2A6B |
7.3 |
46.7 |
|
120 |
PST-2SBE |
7.7 |
46.7 |
|
121 |
APR 777 |
7.0 |
46.7 |
|
122 |
SR 4500 |
7.3 |
46.7 |
|
123 |
Skyhawk |
7.3 |
46.7 |
|
124 |
MEPY |
7.0 |
46.7 |
|
125 |
ABT-99-4.834 |
7.3 |
43.3 |
|
126 |
MDP |
6.7 |
43.3 |
|
127 |
EPD |
6.7 |
43.3 |
|
128 |
EP53 |
7.0 |
43.3 |
|
129 |
ABT-99-4.960 |
7.0 |
43.3 |
|
130 |
ABT-99-4.625 |
7.0 |
40.0 |
|
131 |
ABT-99-4.965 |
7.3 |
40.0 |
|
132 |
MP108 |
7.0 |
36.7 |
|
133 |
ABT-99-4.724 |
6.7 |
33.3 |
|
134 |
LTP-ME |
1.0 |
10.0 |
|
LSD(0.05) |
0.8 |
15.0 |
1Seedling
vigor was rated using a 9 to 1 scale with 9 = best and 1 = worst vigor. Percentage
living ground cover values represent the percentage area per plot covered by
ryegrass.
|
Index Page - Turfgrass Research Report 2000 |