|
Ohio, South Charleston, 4-11-97
|
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| Variety |
1999
Total |
1998
Total |
1997
Total |
1998-1999
Total |
Relative Yield
1998-1999 |
% Stand
|
Injuryaa
|
Height
|
|
| Commercial Seed: |
Tons Dry Matter/Acre
|
% mean
|
4/14/99
|
6/30/99
|
8/3/99
|
8/3/99
|
|||
| Cleansweep |
6.82
|
5.56
|
1.09
|
12.38
|
102
|
83
|
2.0
|
2.7
|
15.95
|
| DK121HG |
6.42
|
5.81
|
1.11
|
12.23
|
101
|
85
|
1.9
|
2.8
|
16.37
|
| Trailblazer |
6.45
|
5.47
|
1.08
|
11.92
|
99
|
85
|
1.2
|
3.0
|
16.22
|
| 5347LH |
6.51
|
5.31
|
1.12
|
11.83
|
98
|
91
|
3.1
|
4.4
|
15.73
|
| Arrest |
6.28
|
5.25
|
1.10
|
11.53
|
95
|
80
|
2.4
|
3.7
|
14.96
|
| Susceptible Check |
6.36
|
5.02
|
0.54
|
11.37
|
94
|
93
|
6.5
|
8.0
|
14.25
|
| SafeGuard |
6.30
|
4.79
|
0.70
|
11.09
|
92
|
84
|
2.6
|
4.8
|
14.26
|
| Interceptor |
6.19
|
4.81
|
0.96
|
11.00
|
91
|
89
|
3.5
|
5.9
|
13.89
|
| AmeriGuard 301 |
6.08
|
4.75
|
0.63
|
10.83
|
90
|
80
|
2.3
|
4.1
|
14.44
|
| Experimental Seed: | |||||||||
| TMF 4355LH* |
7.27
|
6.31
|
1.65
|
13.57
|
112
|
93
|
1.1
|
1.5
|
18.90
|
| DK131HG* |
7.16
|
6.33
|
1.61
|
13.49
|
112
|
90
|
1.1
|
1.5
|
18.66
|
| Mean |
6.57
|
5.50
|
1.24
|
12.08
|
--
|
88
|
2.3
|
3.6
|
16
|
| LSD 0.05 |
0.29
|
0.46
|
0.28
|
0.61
|
--
|
4.5
|
0.8
|
1.1
|
1.96
|
| CV % |
3.17
|
5.89
|
13.52
|
3.56
|
--
|
3.6
|
24.64
|
22.18
|
8.58
|
| no. of harvests |
4
|
4
|
2
|
10
|
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| * Variety tested using experimental seed that may not give performance identical to that of commercially available seed. | |||||||||
| a Potato leafhopper injury rated from 1 = least to 9 = most severe injury. | |||||||||
| Drill seeded with presswheels at 16 lb/a. | |||||||||
| Brookston silt loam, pH = 6.4, P = 85 lb/a, K = 340 lb/a, CEC = 15, O.M. = 3.5 (10/98). | |||||||||
| 50 lb/a of P2O5 was spring applied. | |||||||||
| No insecticide applied. Potato leafhopper populations exceeded economic action thresholds during the 2nd, 3rd and 4th growth cycles. | |||||||||