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Table 3.  1997-2000 alfalfa variety yields at the Pinney-Purdue Agricultural Center, Wanatah, IN                    
Seeding date: April 25, 1997          
    Dry Matter Yield (T/A)
1997 1998 1999 2000 97-00  % of Check
  Entry total   total   total   total   total   97-98 97-99 97-00
DK140 2.19 8.59 * 7.58 * 7.32 * 25.68 * 107 107 108
5312 2.36 * 8.53 * 7.55 * 7.22 * 25.66 * 108 108 108
WL 324 2.41 * 8.57 * 7.72 * 6.94 * 25.64 * 109 109 108
5454 2.12 8.38 * 7.82 * 7.26 * 25.57 * 104 107 107
WL 325 HQ 2.33 * 8.44 * 7.84 * 6.83 * 25.44 * 107 109 107
Demand 2.45 * 8.43 * 7.41 * 7.05 * 25.34 * 108 107 106
DK141 2.34 * 8.23 * 7.39 * 7.05 * 25.02 * 105 105 105
Choice 2.53 * 8.50 * 7.24 6.73 24.99 * 109 107 105
GH 797 2.30 * 8.17 * 7.73 * 6.80 * 24.99 * 104 106 105
GEM 2.24 * 8.43 * 7.32 * 6.84 * 24.83 * 106 105 104
x WL 326 GZ 2.13 8.38 * 7.40 * 6.77 * 24.69 * 104 104 104
Spur 1.84 8.30 * 7.19 6.59 23.91 100 101 100
DK127 2.12 7.76 7.47 * 6.55 23.88 98 101 100
Vernal 2.17 7.93 7.05   6.69   23.83   100 100 100
  Grand mean 2.25   8.33   7.48   6.90 24.96  
LSD (5%) 0.30 0.60 0.54 0.58 1.47
C.V. (%) 9.2 5.0 5.0 5.8 4.1
  No. of harvests 2   4   4   3   13        
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:  Wanatah, IN
Design:  Randomized block, 4 replications, 14 entries
Soil Type:  Tracy sand
Plots:  Five rows, 2.5' x 20', (harvested 2.5' x 15')
Seeded:  April 25, 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
Irrigation:   4-28-00 (1.5")    6-24-00  (1.5")    8-14-00  (1.5")   8-28-00  (1.5")
          1997 total (4.5")      1998 total (8.5")     1999 total (10.4")    2000 total (6")
Insects:  Alfalfa weevil and potato leafhopper controlled by spraying
(Copyright 2000 Purdue Research Foundation)

 

 

 

 

For more forage information contact Dr. Keith Johnson: johnsonk@purdue.edu

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