1997 Irrigated Alfalfa Variety Yield Trial, University of Wyoming at the Padlock Ranch, Sheridan, WY.

Yield in Tons/Acre Dry Matter*

Brand/Variety Origin or Marketer 6-23-99 8-10-99 10-5-99 1999
Total

1998
Total

2-Year
Ave.

% of Ranger
DK 143 Dekalb Genetics 2.97 2.22 1.13 6.32 5.90 6.11 119
Plumas Eureka Seeds Inc. 3.11 2.43 1.25 6.79 5.08 5.94 115
Agriboss Cropmate 2.90 2.26 1.21 6.37 5.45 5.91 115
Big Horn Cargill Hybird 3.04 2.45 1.16 6.65 5.15 5.90 114
Fortress Norvartis 2.88 2.27 1.32 6.46 5.11 5.79 112
Innovator +Z America's Alfalfa 3.19 2.30 1.16 6.64 4.85 5.75 111
631 Garst Seed Co. 2.98 2.33 1.29 6.60 4.81 5.71 111
DK 142 Dekalb Genetics 2.74 2.33 1.23 6.30 5.09 5.70 110
Leafmaster Union Seed 3.06 2.29 1.39 6.74 4.44 5.59 108
WL 324 WL Research Inc. 2.96 2.27 1.14 6.37 4.79 5.58 108
Rainier Norvartis 2.94 2.05 1.23 6.21 4.79 5.50 107
2888 Norvartis 3.00 2.20 1.16 6.36 4.56 5.46 106
630 Garst Seed Co. 2.53 2.33 1.21 6.07 4.83 5.45 106
Rhino Geertson Seed Farm 2.82 2.28 1.35 6.44 4.40 5.42 105
DK 127 Dekalb Genetics 2.76 2.39 1.18 6.33 4.47 5.40 105
WL 325 WL Research Inc. 2.91 2.28 1.05 6.24 4.43 5.34 103
Pioneer 5396 Pioneer Hi-Bred Int'l 2.76 2.36 1.14 6.26 4.39 5.33 103
Wrangler Public 2.86 2.24 1.18 6.28 4.35 5.32 103
Pinnacle Arkansas Valley 2.68 2.08 1.34 6.09 4.37 5.23 101
Ranger Public 2.78 2.29 1.26 6.32 3.99 5.16 100
Average   2.91 2.27 1.21 6.39 4.78 5.59  
LSD (0.05)   0.35 NS 0.20 NS 0.75    
CV (%)   8.44 11.41 11.54 6.47 11.0    
*Dried for 48 hr at 60 degrees C. To convert dry tons per acre to hay at 12% moisture, multiply by 1.136.

ESTABLISHMENT PROCEDURE: Seeded on 5-6-97@12lbs pure live seed per acre after 350 lbs/A of P205 were soil incorporated. Borders were seeded to Ladak. Trial was sprinkler irrigated.

ELEVATION: 3745 ft above sea level; 150 days above 28 degrees F.

SOIL TYPE: Silty Clay Loam.

EXP. DESIGN: Randomized Complete Block, Four Replications. Yields differing from each other by more than the LSD are different at odds of at least 19 to 1. An LSD Designation of N.S. indicates a difference that is "non-significant".

COOPERATORS: Roger Hybner (307) 737-2415 and Alan Gray (307) 754-2223. (PAD9799.wpd)