| Table 6. 2006-2007 Regional Alfalfa Yield Trial for Potato
Leafhopper Resistant Varieties |
| Conducted
at S. Charleston, OH and Ames, IA, seeded Spring 2006 |
| |
|
|
|
PLH Yield |
| Variety |
Marketer |
Yield1 |
Index2 |
| Resistant |
|
Tons/acre |
% |
| 53H92 |
Pioneer |
1.20* |
45 |
| 4P424 |
Mycogen Seeds |
1.15* |
38 |
| 6426PLH |
Garst Seed |
1.14* |
37 |
| EVERGREEN3 |
NK Brand Seed |
1.09* |
30 |
| 54H91 |
Pioneer |
1.06* |
28 |
| GH773LH |
Goldern Harvest Seeds |
1.04* |
25 |
| Susceptible Checks3 |
|
0.83 |
|
| LSD (0.05) |
|
0.10 |
|
| *
Yield is significantly greater than yield of the susceptible check varieties.. |
| 1 Average yield at 10 harvests
across both locations in 2006 and 2007 when potato leafhoppers caused
significant injury to alfalfa. |
| 2 The % yield improvement over the yield of susceptible check
varieties. |
| 3 Average yield of two susceptible varieties (5454, DK140). |
|
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