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 6-16-99 8-3-99 10-4-99 1999
Total
% of
Ranger
DS9612 Dairyland 2.19 2.46 1.85 6.50 125
Paramount WL Research 2.02 2.38 1.93 6.34 122
53V08 Pioneer 2.09 2.34 1.72 6.16 118
Super 6 Super Seeds 1.93 2.29 1.85 6.07 117
Rampage Mico-Rizo1 Gooding Seed 1.73 2.42 1.87 6.02 116
Rambo Mico-Rizo1 Gooding Seed 1.96 2.32 1.71 5.99 115
Pinnacle Arkansas Valley Seeds 1.91 2.26 1.82 5.99 115
TMF 421 Mycogen Seeds 1.94 2.22 1.80 5.97 115
Rebound Cenex Land O'Lakes 1.76 2.44 1.76 5.96 114
Magnum V Dairyland 1.73 2.36 1.84 5.93 114
DK142 DeKalb 1.75 2.23 1.84 5.82 112
Mountaineer Cenex Land O'Lakes 1.76 2.18 1.84 5.78 111
Rambo Gooding Seed 1.87 2.10 1.67 5.64 108
DK134 DeKalb 1.63 2.22 1.69 5.54 106
Innovator +Z Americas Alfalfa 1.71 2.01 1.72 5.45 105
Enhancer Mico-Rizo1 Gooding Seed 1.77 1.98 1.64 5.39 103
Plumas Union Seed 1.40 2.11 1.81 5.32 102
Wrangler Public 1.83 1.93 1.45 5.24 101
Ranger Public 1.73 1.98 1.50 5.21 100
Vernal Public 1.48 1.97 1.50 4.95 95
Average   1.81 2.21 1.74 5.76  
LSD (0.05)   0.39 0.35 0.19 0.78  
CV (%)   15.40 11.28 7.70 9.65  
1Mico-Rizo seed coating reduced seeding rate by 34%.

*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.wpd)