| Table
2. 1997-2000
alfalfa variety yields at the Agronomy Research Center, West
Lafayette , IN |
|
Seeding
date: April 23, 1997 |
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|
Dry Matter Yield (T/A) |
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|
1997 |
|
1998 |
|
1999 |
|
2000 |
|
97-00 |
|
% of Check |
|
|
|
Entry |
total |
|
total |
|
total |
|
total |
|
total |
|
97-98 |
97-99 |
97-00 |
|
|
|
GEM |
3.28 |
* |
7.36 |
* |
7.77 |
* |
6.99 |
* |
25.41 |
* |
133 |
124 |
121 |
|
|
|
5312 |
3.02 |
* |
6.83 |
|
7.74 |
* |
7.43 |
* |
25.21 |
* |
123 |
118 |
120 |
|
|
|
Demand |
2.96 |
* |
7.01 |
* |
7.84 |
* |
7.26 |
* |
25.07 |
* |
124 |
120 |
119 |
|
|
|
5454 |
2.89 |
* |
7.15 |
* |
7.74 |
* |
7.39 |
* |
24.99 |
* |
125 |
120 |
119 |
|
|
|
Choice |
2.98 |
* |
7.12 |
* |
7.78 |
* |
7.10 |
* |
24.99 |
* |
126 |
120 |
119 |
|
|
|
DK140 |
3.21 |
* |
7.53 |
* |
7.43 |
* |
6.80 |
|
24.97 |
* |
134 |
122 |
119 |
|
|
|
2888 |
3.00 |
* |
6.92 |
|
7.53 |
* |
7.35 |
* |
24.95 |
* |
124 |
118 |
118 |
|
|
|
DK141 |
3.02 |
* |
6.86 |
|
7.59 |
* |
7.14 |
* |
24.62 |
* |
123 |
118 |
117 |
|
|
|
631 |
3.06 |
* |
6.79 |
|
7.76 |
* |
7.02 |
* |
24.48 |
* |
123 |
119 |
116 |
|
|
|
Complete |
2.93 |
* |
7.03 |
* |
7.26 |
|
6.86 |
* |
24.08 |
* |
124 |
116 |
114 |
|
|
|
WH 80 |
2.87 |
|
6.80 |
|
7.65 |
* |
6.64 |
|
23.96 |
* |
120 |
117 |
114 |
|
|
|
DK127 |
2.63 |
|
6.86 |
|
7.39 |
* |
6.73 |
|
23.61 |
|
118 |
114 |
112 |
|
|
|
Rushmore |
2.78 |
|
6.90 |
|
7.30 |
|
6.50 |
|
23.49 |
|
121 |
114 |
112 |
|
|
|
Ace |
3.05 |
* |
6.99 |
* |
7.13 |
|
5.98 |
|
23.15 |
|
125 |
116 |
110 |
|
|
|
Spur |
2.70 |
|
6.97 |
* |
7.33 |
|
6.14 |
|
23.14 |
|
120 |
114 |
110 |
|
|
|
Safeguard |
2.55 |
|
6.51 |
|
7.20 |
|
6.11 |
|
22.36 |
|
113 |
109 |
106 |
|
|
|
Vernal |
2.53 |
|
5.50 |
|
6.82 |
|
6.20 |
|
21.06 |
|
100 |
100 |
100 |
|
|
|
Grand mean |
2.91 |
|
6.89 |
|
7.49 |
|
6.80 |
|
24.09 |
|
|
|
|
|
LSD (5%) |
0.41 |
|
0.59 |
|
0.48 |
|
0.63 |
|
1.56 |
|
|
|
|
|
C.V. (%) |
9.9 |
|
6.0 |
|
4.6 |
|
6.6 |
|
4.6 |
|
|
|
|
|
No. of harvests |
3 |
|
4 |
|
4 |
|
4 |
|
15 |
|
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Entries
with names preceded by "x" were tested using experimental
seed that may not give |
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performance identical to commercially available seed. |
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Yields
followed by an asterisk (*) are not significantly different from the
highest yield in the column. |
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Yield of
"Vernal" used to calculate % of check |
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Location:
West Lafayette, IN |
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Design:
Randomized block, 4 replications, 17 entries |
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Soil Type:
Xenia silt loam |
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Plots:
Five rows, 2.5' x 20', (harvested 2.5' x 15') |
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Seeded:
April 23, 1997, with 15 lb. live seed / acre;
1.3 lb. a.i. Balan / acre, incorporated |
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Fertilizer:
60 lb. P2O5
and 250 lb. K2O
/ acre applied after first and final harvest |
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Insects:
Alfalfa weevil and potato leafhopper controlled by spraying |
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|
(Copyright
2000 Purdue Research Foundation) |
Forage
Issues 