Table 8: |
Potato Leafhopper Resistant Alfalfa Variety Trial |
Ohio,
South Charleston, Sown 4-23-08 |
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Total |
% of Susceptible |
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Variety |
Marketer |
2-Jul |
11-Aug |
8-Sep |
2008 |
Checks |
Injurya |
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------------- Tons Dry
Matter/Acre ----------- |
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8/11/08 |
53H92 |
Pioneer |
0.27 |
0.64 |
0.32 |
1.21 |
135 |
2.0 |
FG 45H353* |
Forage Genetics |
0.17 |
0.60 |
0.39 |
1.20 |
133 |
1.8 |
EverGreen 3 |
NK Brand Seeds |
0.14 |
0.59 |
0.27 |
0.98 |
109 |
2.5 |
6426 |
Garst |
0.10 |
0.57 |
0.29 |
0.97 |
108 |
2.3 |
AmeriStand 404LH |
Americas's Alfalfa |
0.03 |
0.63 |
0.26 |
0.87 |
97 |
1.8 |
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Susceptible checks:** |
0.11 |
0.52 |
0.25 |
0.90 |
-- |
4.5 |
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Mean |
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0.13 |
0.57 |
0.29 |
0.99 |
-- |
3.0 |
LSD 0.05 |
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0.11 |
ns |
ns |
0.25 |
-- |
0.93 |
CV % |
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58 |
16 |
28 |
17 |
-- |
21 |
ns = no significant difference among varieties |
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* Variety tested using experimental seed that may not give performance
identical to that of commercially available seed. |
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** Susceptible check varieties were Vernal, DK 140 and 5454 |
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a Potato leafhopper injury rated from 1 =
no visible injury to 5 = most severe injury. |
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NOTE: Stand was 95% for all varieties |
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Data subjected to Nearest Neighbor AOV, adjusted means reported. |
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Establishment: |
Seeded with a Hege 3-point hitch drill with presswheels at 16 lb/a. |
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Plot size: |
4' x 20' ,
15'alleys and borders, RCBD with four reps. |
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Soil type /
analysis: |
Crosby silt
loam, pH=6.0, P=108 lbs/a, K=202lbs/a, CEC=15.1, O.M.=2.0, (10/07). |
2008
Fertilization: |
3 ton of lime
was applied in March 2008. 200 lb/a of 0-46-0 and |
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500 lb/a of 0-0-60 was applied
prior to planting |
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2008 Pest
control: |
Herbicide was applied on 6-4-08 for weed control. |
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