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Table 7: |
|
Potato Leafhopper Resistant Alfalfa Variety Trial |
| Ohio,
South Charleston, Sown 4-23-08 |
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|
Total |
% of |
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| Variety |
Marketer |
2-Jul |
11-Aug |
8-Sep |
2009a |
2008 |
2008-09a |
Checks |
% Stand |
|
Released cultivars: |
|
------------------------ Tons Dry
Matter/Acre ---------------------- |
|
9/30/09 |
| 53H92 |
Pioneer Hi-Bred |
1.02 |
1.83 |
1.11 |
3.97 |
1.21 |
5.18 |
120 |
94 |
| Garst 6426 |
Garst |
1.04 |
1.66 |
1.13 |
3.89 |
0.97 |
4.86 |
112 |
92 |
| EverGreen 3 |
NK Brand Seeds |
1.03 |
1.64 |
1.16 |
3.84 |
0.98 |
4.82 |
111 |
93 |
| AmeriStand 404LH |
America's Alfalfa |
1.06 |
1.63 |
0.99 |
3.63 |
0.87 |
4.50 |
104 |
93 |
|
Experimental Strains: |
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| FG 45H353* |
Forage Genetics |
1.13 |
1.70 |
1.22 |
4.09 |
1.20 |
5.29 |
87 |
94 |
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Susceptible checks** |
0.82 |
1.71 |
0.92 |
3.43 |
0.90 |
4.33 |
|
87 |
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| Mean |
|
0.97 |
1.70 |
1.05 |
3.71 |
0.99 |
4.70 |
-- |
91 |
| LSD 0.05 |
|
0.19 |
ns |
0.20 |
0.30 |
0.25 |
0.42 |
-- |
3.80 |
| CV % |
|
13.5 |
9.2 |
13.1 |
5.6 |
17.4 |
6.1 |
-- |
2.8 |
|
* 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 Total yield represents three harvest
dates in 2009, first harvest was not included due to technical
difficulties. |
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ns = no significant difference among varieties. |
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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=6.2, P=198 lbs/a, K=360lbs/a, CEC=17.9, O.M.=2.7, (10/08). |
| 2009
Fertilization: |
3 ton of
lime was applied in March 2008. 300 lb/a of 0-46-0 and |
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500 lb/a of
0-0-60 was applied after first harvest. |
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| 2009 Pest
control: |
No
insecticide was applied to this trial. |
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