Extension/Research Information

1999 Ohio Forage Performance Trials

Ohio State University Extension
Ohio Agricultural Research and Development Center
The Ohio State University

Horticulture and Crop Science
Series 195
December 1999


Table 14 - Potato Leafhopper Resistant Trial - Wooster, Ohio

Ohio, Wooster, Sown 4-7-99
Variety
1999
Relative Yield
1999
1-Jul
23-Aug
Total
Commercial Seed:
Tons Dry matter/Acre
% mean
Susceptible Check #1
0.98
0.89
1.87
107
DK131HG
0.98
0.89
1.87
107
Ameriguard302+Z
0.98
0.89
1.86
107
Cimarron SR
0.97
0.88
1.85
106
6310
0.93
0.85
1.78
102
Susceptible Check #2
0.92
0.84
1.76
101
54H69
0.92
0.83
1.75
100
TMF4355LH
0.91
0.83
1.74
100
FQ302HR
0.90
0.82
1.72
99
PLH40*
0.80
0.73
1.52
87
Mean
0.91
0.83
1.75
--
LSD 0.05
0.12
0.11
0.23
--
CV %
9.09
9.09
9.09
--
no. of harvests
2
* Variety tested using experimental seed that may not give performance identical to that of commercially available seed.
Drill seeded with presswheels at 16 lb/a. Eptam was applied PPI at 2 qt/a.
Riddles silt loam, pH = 6.9, P = 76 lb/a, K = 208 lb/a, CEC = 8 (11/98).
No fertilization was required in reference to the soil analysis.
No insecticide applied. Potato leafhopper populations reached the economical action threashold during both growth cycles.



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