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Table 6.  1997-1999 alfalfa variety yields at the Southeast Purdue Agricultural Center, Butlerville, IN  Seeding date:  May 21, 1997                

Dry Matter Yield (T/A)

1997 1998 1999 97-99

 % of Check

Entry

total

total

total total 97-98 97-99
5312 1.09 * 9.70 * 6.84 * 17.63 * 114 115
Complete 1.01 * 9.64 * 6.47 * 17.12 * 112 112
5454 1.05 * 9.38 * 6.68 * 17.11 * 110 112
DK140 1.08 * 9.35 * 6.67 * 17.10 * 110 112
631 1.15 * 9.40 * 6.51 * 17.06 * 111 111
DK141 1.16 * 9.33 * 6.47 * 16.96 * 111 111
ABT-405 1.06 * 9.28 * 6.50 * 16.84 * 109 110
Choice 1.13 * 9.51 * 6.20 * 16.84 * 112 110
GEM 1.12 * 9.22 * 6.36 * 16.70 * 109 109
Spur 1.14 * 9.19 * 5.93 16.26 109 106
Vernal 1.12 * 8.35 5.84 15.31 100 100

Grand mean 1.10 9.30 6.41 16.81
LSD (5%) 0.17 0.62 0.65 1.13
C.V. (%) 10.8 4.6   7.0 4.4   
No. of harvests 2     4     4    10   

Entries with names preceded by "x" were tested using experimental seed that may not give performance identical to commercially available seed.
Yields followed by an asterisk (*) are not significantly different from the highest yield in the column.
Yield of "Vernal" used to calculate % of check
Location:  Butlerville, IN
Design:  Randomized block, 4 replications, 11 entries
Soil Type:  Avonburg silt loam
Plots:  Five rows, 2.5' x 20', (harvested 2.5' x 15')
Seeded:  May 21, 1997, with 15 lb. live seed / acre;  1.3 lb. a.i. Balan / acre, incorporated
Fertilizer:  60 lb. P2O5 and 250 lb. K2O / acre applied after first and final harvest
Insects:  Alfalfa weevil and potato leafhopper controlled by spraying
(Copyright 1999 Purdue Research Foundation)

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Copyright 1998 Purdue University Agronomy Extension
Last modified: March 09, 2000