1998 Irrigated Alfalfa Variety Yield Trial, University of Wyoming Research and Extension Center, Powell, WY

Yield in Tons/Acre Dry Matter*

Brand/Variety Origin or Marketer 6-8-00 7-24-00 10-3-00 2000
Total
1999
Total
2-yr
Total
2-yr
Ave.
% of
Ranger
DS9612 Dairyland 2.28 2.00 1.20 5.47 6.50 11.97 5.98 117
Paramount Cargill Hybrid Seed 2.19 1.89 1.21 5.29 6.34 11.62 5.81 113
Rampage Mico-Rizo1 Gooding Seed 2.21 2.00 1.35 5.56 6.02 11.58 5.79 113
TMF 421 Mycogen Seeds 2.33 1.84 1.39 5.56 5.97 11.53 5.76 113
DK142 DeKalb 2.42 1.84 1.37 5.62 5.82 11.44 5.72 112
Super 6 Super Seeds 2.11 1.81 1.38 5.31 6.07 11.38 5.69 111
Pinnacle Arkansas Valley Seeds 2.16 1.95 1.21 5.28 5.99 11.27 5.64 110
Magnum V Dairyland 2.14 1.92 1.25 5.32 5.93 11.25 5.62 110
Rambo Mico-Rizo1 Gooding Seed 2.06 1.79 1.33 5.17 5.99 11.16 5.58 109
53V08 Pioneer 2.12 1.92 0.94 4.99 6.16 11.14 5.57 109
Rebound Cenex Land O'Lakes 2.20 1.66 1.18 5.04 5.96 11.01 5.50 107
Mountaineer Cenex Land O'Lakes 2.18 1.70 1.24 5.12 5.78 10.89 5.45 106
Plumas Union Seed 2.22 1.90 1.31 5.43 5.32 10.75 5.38 105
Enhancer Mico-Rizo1 Gooding Seed 2.15 1.64 1.38 5.18 5.39 10.57 5.28 103
Innovator +Z Americas Alfalfa 2.26 1.63 1.22 5.11 5.45 10.56 5.28 103
Rambo Gooding Seed 2.10 1.51 1.23 4.84 5.64 10.48 5.24 102
Ranger Public 2.13 1.78 1.12 5.03 5.21 10.24 5.12 100
Wrangler Public 1.89 1.31 1.11 4.30 5.24 9.54 4.77 93
Vernal Public 1.61 1.52 0.97 4.09 4.95 9.05 4.52 88
Average   2.14 1.76 1.232 5.14 5.77 10.92 5.46 107
LSD (0.05)   N.S. 0.30 0.20 0.77 0.76 1.16 0.58  
CV (%)   15.5 12.1 11.7 10.5 9.3 7.5 7.5  
1Mico-Rizo seed coating reduced seeding rate by 34%.

2Standing crop losses occurred prior to harvest of third cutting due to 23-25 degree F temperatures and 3.5 inches of snow on September 22-23, 2000.

*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 4-30-98 @ 24 lbs pure live seed per acre after 250 lbs/A of 11-52-0 were soil incorporated. Borders were seeded to Big Horn. Trial was gravity-flow, flood-irrigated.

ELEVATION: 4365 ft above sea level; 155 days above 28 degrees F.

SOIL TYPE: Clay Loam.

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

COOPERATORS: Lyle Bjornestad, Mike Killen, Alan Gray (307) 754-2223.

(TablePOW98-00.wpd)