SELECTING AN ALFALFA VARIETY
Selecting an alfalfa variety, among the approximately 240+ possibilities, can sometimes be difficult.
Alfalfa varieties are generally rated according to their fall dormancy and pest resistance. Dormancy ratings range from 1 being the most dormant to 9 being the least dormant. These ratings relate somewhat to winter hardiness. They measure how early the variety goes dormant in the fall, and somewhat to how fast the alfalfa re-grows after cutting. Utah producers have had good success with varieties that have a fall dormancy rating from 2 to 6. Washington county growers are having success with varieties that rate as high as 7.
Resistance is rated on the following diseases and pests: Bacterial wilt; verticillium wilt; fusarium wilt; anthracnose; phytophthora root rot; spotted alfalfa aphid; pea aphid; blue alfalfa aphid; stem nematode; and root knot nematode.
Low resistance to a particular disease or insect means 6-14% of the plants are resistant to the pest. Moderate resistance means 15-30% of the plants are resistant. Varieties with 31-50% resistant plants are called resistant, and those with more than 50% resistant plants are highly resistant.
Utah growers should consider a variety that is resistant to bacterial wilt, verticillium wilt, phytophthora root rot if a water table or other wet conditions exist in the field, the alfalfa stem nematode, and the pea aphid. The other pests and diseases are not considered to be a major problem in most Utah counties. Washington and Grand county growers should consider a variety resistant to the root knot nematode.
Alfalfa growers need to know that "Ranger" will no longer be available as certified seed. Plant breeders have found that it has lost many of the genetic traits it once had. It has developed low resistance to all the problem diseases in Utah.
Yield information on many varieties can be obtained from Utah State University personnel and from various seed companies. It is suggested that a grower study the results of both university and seed company trials to find out how they will perform under conditions similar to theirs.
Since each grower often has a unique set of conditions, it is also recommended that on-farm variety testing be used. New varieties should be tested in small strips rather than large acreages.
For further information, contact your local Natural Resources Conservation Service office, or Utah State University Extension office.
Table 1.
USU Evans (South) Research Farm, Logan, UT. Cumulative Yield, Dry Tons/A. 1991.
Cumul.
Variety19891990199119921993Yield
Fortress2.5613.987.9824.52
Blazer XL2.5113.568.3524.42
Ultra2.5013.398.2424.13
XAL-722.3613.038.4023.79
MultiKing I2.2613.337.9023.49
Arrow2.4212.738.0823.23
AF-212.3812.518.2523.14
Agri-Mate2.2812.488.3323.09
Clipper2.2712.587.9222.77
Deseret1.9312.228.2922.44
Cimmaron VR2.4511.937.9822.36
Emerald2.4811.618.2322.32
WL-3172.1712.107.9422.21
DK-1252.5511.278.0821.90
Lahontan2.3911.407.6721.46
Terminator2.2811.048.0521.37
Ranger2.4011.207.6921.29
Wrangler2.1011.297.8721.26
Average2.3512.318.0722.73
CV (%)9.444.46
LSD (0.05)1.650.43
NOTES:
1. Rank order by cumulative yield (high to low)
2. Soil: Silty Clay Loam
3. ECe(mmhhos/cm) = 0.5; pH = 7.6; OM(%) = 2.59
4. Previous crop: fallow
5. Fertilizer () and herbicide () applied Spring 1989
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on June 6,1989 7. Irrigation: sprinkler (hand-lines)
8. Stage of growth at harvest was mid-bud to early-flower
VARIETY SOURCES Fortress - Northrup King Blazer XL - Vista Seed Co. Ultra - Seedtec
Multiking 1- Northrup King XAL-72 - Pioneer
Arrow - ABI
AF-21 - Asgrow
Oippcr - Payee Seed Agri-Mate (VS-663) - Cropmate Cimmaron VR - Great Plains WL-317 - WL Research Deseret - Public
Emerald - Great Plains
DK-125 - DeKalb Plant Genetics Lahontan - Public
Ranger - Public
Wrangler - Public
Terminator - LaCrosse Seed
91ANNREP:ALFALFA\EVANS.WQl RN:CUMULATIVE
Table 2.
USU Evans (South) Research Farm, Logan, UT. Alfalfa Yield, Dry Tons/A. 1991
Cut 1Cut 2Cut 3% of
Variety6/137/189/3TotalRanger
XAL-723.602.212.598.40109.2
Blazer XL3.792.052.518.35108.6
Agri-Mate3.921.912.58.33108.3
Deseret3.572.062.668.29107.8
AF-213.772.042.448.25107.3
Ultra3.871.882.498.24107.2
Emerald3.632.052.558.23107.0
Arrow3.721.962.408.08105.1
DK-1253.691.922.478.08105.1
Terminator3.601.962.498.05104.7
Fortress3.611.922.457.98103.8
Cimmaron VW3.501.952.537.98103.8
WL-3173.761.852.337.94103.3
Clipper3.731.852.347.92103.0
Multi-King3.621.972.317.90102.7
Wrangler3.821.842.217.87102.3
Ranger3.531.802.367.69100.0
Lahontan3.511.822.347.6799.7
Average3.681.952.448.07
CV(%)4.46
LSD(0.05) 0.43
NOTES:
1. Rank order by cumulative yield (high to low)
2. Soil: Silty Clay Loam
3. ECe(mmhhos/cm) = 0.5; pH = 7.6; OM(%) = 2.59
4. Previous crop: fallow
5. Fertilizer () and herbicide () applied Spring 1989
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on June 6, 1989 7. Irrigation: sprinkler (hand-lines)
8. Stage of growth at harvest was mid-bud to early-flower
91ANNREP:ALFALFA\EVANS.WQl RN:YIELD
Table 3.
USU Evans (South) Research Farm, Logan, UT. Crude Protein (CP) % - 1991.
Cut 1Cut 2Cut 3
Variety6/137/189/3Average
MultiKing I20.1222.1219.2820.51
Wrangler19.1122.1819.9220.40
DK-12519.8321.9918.9920.27
Agri-Mate18.7222.9119.1120.25
WL-31718.6722.4019.3720.15
Emerald19.1921.3719.5820.05
Cimmaron VW19.3420.9719.5919.97
Clipper18.3121.5219.8819.90
Blazer XL18.9921.4119.2619.89
Ultra18.9321.6718.9419.85
Fortress20.1620.1319.1019.80
Arrow19.3420.4919.0019.61
Ranger18.7820.6019.1219.50
Terminator19.7720.4917.9619.41
Lahontan18.1521.6118.2719.34
XAL-7219.3418.8517.7518.65
Deseret17.8920.4817.2618.54
Average19.1421.2319.0019.79
CV (%)3.63
LSD (0.05)NS
NOTES:
1. Rank order by average CP (high to low)
2. Soil: Silty Clay Loam
3. ECe(mmhhos/cm) = 0.5; pH = 7.6; OM(%) = 2.59
4. Previous crop: fallow
5. Fertilizer () and herbicide () applied Spring 1989
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on June 6,1989 7. Irrigation: sprinkler (hand-lines)
8. Stage of growth at harvest was mid-bud to early-flower
91ANNREP:ALFALFA\EVANS.WQl
Table 4.
USU Evans (South) Research Farm, Logan, UT. Acid Detergent Fiber (ADF) % - 1991.
Cut 1Cut 2Cut 3
Variety6/137/189/3Average
Wrangler34.1936.0433.0434.43
MultiKing I33.1636.2833.8734.44
WL-31734.2836.0333.3434.55
DK-12533.3635.9835.0834.81
AF-2133.5837.7533.3434.89
Agri-Mate35.3236.2033.9035.14
Blazer XL34.3837.2834.0635.24
Cimmaron VW34.3837.2834.0635.24
Clipper35.4536.9033.4135.25
Ultra34.9236.7634.1935.29
Lahontan35.8035.5734.4935.39
Ranger34.4937.1134.5635.39
Terminator33.4637.4865.5835.51
Emerald34.6538.4633.8435.65
Fortress33.439.2834.6335.78
Arrow34.6238.9834.2035.93
XAL-7233.3039.7435.2736.10
Deseret35.8737.4036.7236.66
Average34.3437.2934.3235.32
CV (%)2.89
LSD (0.05)NS
NOTES:
1. Rank order by average ADF (low to high).
2. Soil: Silty Clay Loam
3. ECe(mmhhos/cm) = 0.5; pH = 7.6; OM(%) = 2.59
4. Previous crop: fallow
5. Fertilizer () and herbicide () applied Spring 1989
6. Seeding rate: 15 lbs Pure Live Seed (PLS)/A on June 6,1989 7. Irrigation: sprinkler (hand-lines)
8. Stage of growth at harvest was mid-bud to early-flower
91ANNREP:ALFALFA\EVANS.WQl RN:ADF
Table 5.
USU Evans (South) Research Farm, Logan, UT. Total digestible nutrients (IDN) % - 1991.
Cut 1Cut 2Cut 3
Variety6/137/189/3Average
MultiKing I57.4655.1256.9356.50
Wrangler56.6955.2757.5556.50
WL-31756.6255.3057.3356.42
DK-12557.3155.3456.0256.22
AF-2157.1454.0157.3256.16
Agri-Mate55.8455.1856.9055.97
Blazer XL56.5554.3756.7855.90
Cimmaron VW56.9753.8356.8755.89
Clipper55.7454.6557.2855.89
Ultra56.1454.7556.6955.86
Lahontan55.4755.6556.2455.79
Ranger56.4654.4956.5155.79
Terminator57.2454.2255.6455.70
Emerald56.3453.4856.9555.59
Fortress57.2552.8656.3655.49
Arrow56.3653.0856.6855.37
XAL-7257.3652.5255.8755.25
Deseret55.4254.2754.7854.82
Average56.5854.3656.5955.84
CV (%)1.37
LSD (0.05)NS
NOTES:
1. Rank order by average TDN (high to low).
2. Soil: Silty Clay Loam
3. ECe(mmhhos/cm) = 0.5; pH = 7.6; OM(%) = 2.59
4. Previous crop: fallow
5. Fertilizer () and herbicide () applied Spring 1989
6. Seeding rate: 151bs Pure Live Seed (PLS)/A on June 6,1989 7. Irrigation: sprinkler (hand-lines)
8. Stage of growth at harvest was mid-bud to early-flower
91ANNREP:ALF ALFA\EVANS.WQl
Table 9.
USU Kaysville Research Farm, Kaysville, UT. Cumulative Yield, Dry Tons/A. 1991.
Cumu!.
Variety19881989199019911992Total
Archer6.0012.3512.8510.0041.20
P-54325.7011.5612.4610.2439.96
Vernema5.6011.2612.439.5738.86
Vector5.6011.4812.498.9238.49
WL-3165.7011.2012.009.4538.35
Champ5.9011.7811.549.0238.24
Ranger5.7011.1711.589.2537.70
Deseret5.2011.5711.319.5037.58
Fortress5.6012.0911.348.4937.52
DK-1255.6011.2211.958.7437.51
Shield5.9011.5111.408.6537.46
Agri-Mate5.4011.0511.918.9737.33
Ultra5.5011.8111.168.6137.08
Lahontan5.3010.2811.859.6337.06
Edge5.6010.9411.408.8636.81
Legend5.3010.5311.789.1036.71
Wrangler5.8011.6610.867.8936.21
Impact5.4010.5211.368.5335.81
Average5.6011.3311.769.0837.77
CV (%)8.116.35
LSD (0.05)1.100.72
NOTES:
1. Rank ordered by total yield (high to low)
2. Soil: Loam
3. pH = 7.6; OM(%) = 1.46
4. Previous crop: watermelons
5. Fertilizer and herbicide applied Fall 1988
6. Seeding rate: 151bs Pure Live Seed (PLS)/A on May 16,1988 7. Irrigation: sprinkler (hand-lines)
VARIETY SOURCES
Archer - (APU40) ABI
PS432 - Pioneer
Vemema - Public
Vector - Peterson Seed
WL-316 - W-L Research
Champ - Research Seeds
Ranger - Public
Deseret - Public
Fortress - Northrup King
DK-l25 - DeKalb Plant Genetics
Shield - Great Lakes
Agri-Mate (VS-663) - Cropmate
Ultra - Seedtec
Lahontan - Public
Edge - Research Seeds
Legend - Cenex or (VS%4) Vista Wrangler - Public
Impact - Peterson Seed
91ANNREP:ALFALFA\KAYSVILL WQ1
RN: CUMULATIVE
Table 10.
USU Kaysville Research Farm, Kaysville, UT. Alfalfa Yield, Dry Tons/A. 1991.
Cut 1Cut 2Cut 3Cut 4Cut 5% of
Variety6/67/58/59/410/22TotalRanger
P-54324.102.341.771.180.8510.24110.7
Archer 3.462.441.661.231.2110.00108.1
Lahontan3.312.481.761.180.909.63104.2
Vernema3.682.311.791.090.709.57103.4
Deseret3.582.461.701.060.699.50102.7
WL-3163.582.211.661.070.939.45102.2
Ranger3.642.101.661.200.669.25100.0
Legend3.662.111.561.050.729.1098.4
Champ3.452.111.611.080.779.0297.5
Agri-Mate3.712.121.510.930.708.9797.0
Vector3.402.071.621.080.758.9296.4
Edge3.641.981.511.050.698.8695.8
DK-1253.502.121.520.960.648.7494.5
Shield3.311.971.511.010.858.6593.5
Ultra3.611.951.440.970.648.6193.0
Impact3.582.031.330.890.708.5392.2
Fortress3.301.991.531.030.648/.4991.8
Wrangler3.321.721.380.960.517.8985.2
Average3.542.141.581.060.759.08
CV (%)6.35
LSD (0.05)0.72
NOTES:
1. Rank ordered by total yield (high to low)
2. Soil: Loam
3. pH = 7.6; OM(%) = 1.46
4. Previous crop: watermelons
5. Fertilizer and herbicide applied Fall 1988
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on May 16,1988 7. Irrigation: sprinkler (hand-lines)
91ANNREP:ALFALFA\KAYSVILL.WQ1 RN:YIELD
Table 11. USU Kaysville Research Farm, Kaysville, UT.
Crude Protein (CP)% - 1991.
Cut 1Cut 2Cut 3Cut 4Cut 5
Variety6/67/58/59/410/22Average
Champ20.9922.4323.3023.7625.9223.28
Wrangler18.8722.6823.9424.0225.8723.08
Legend20.6322.4422.5724.5724.8923.02
Ultra19.3922.0723.3524.1425.8022.95
Agri-Mate18.9621.2223.3124.4125.5122.68
Vector19.3922.0022.1223.9825.4422.59
DK-12519.7620.9422.4523.7924.8722.36
Ranger18.4121.7422.4923.3225.1122.21
Archer20.0420.6421.9123.2825.1822.21
WL-31619.0121.2222.5523.4624.5322.15
Edge19.2021.8822.5122.1025.0222.14
Shield20.5221.9221.8923.2323.1322.14
Vernema19.3320.7622.4722.5525.4322.11
P543219.0621.7922.7423.0123.8522.09
Fortress18.0921.2422.7923.8124.4722.08
Impact19.2221.5322.7423.0123.8522.09
Lahontan19.3020.6020.6022.4624.6121.51
Deseret17.2319.1321.4421.8824.9520.93
Average19.3021.4622.5123.3624.9022.31
CV (%)2.92
LSD (0.05)0.82
NOTES:
1. Rank ordered by average CP (high to low)
2. Soil: Loam
3. pH = 7.6; OM(%) = 1.46
4. Previous crop: watermelons
5. Fertilizer and herbicide applied Fall 1988
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on May 16,1988 7. Irrigation: sprinkler (hand-lines)
91ANNREP:ALFALFA\KAYSVILL.WQl RN:CP
Table 12.
USU Kaysville Research Farm, Kaysville, UT. Acid Detergent Fiber (AD F) % -1991.
Cut 1Cut 2Cut3Cut 4Cut5
Variety6/67/58/59/410/22Average
Wrangle32.5033.2930.5230.5125.4730.46
Champ30.7234.0132.712938626.1530.69
Legend31.1833.6732.5529.6827.0630.83
Ultra31.8233.9432.3329.6126.4930.84
Vector32.1834.1533.1529.9826.1731.13
P543232.8534.7732.8429.84263.5731.37
DK-12531.9935.4333.5029.2526.7431.38
Agri-Mate33.2235.7831.9229.5426.8731.47
WL-31733.0334.6332.1830.8526.8131.50
Ranger34.0734.4332.8130.5126.9431.53
Edge32.6234.7632.0632.7626.6631.77
Archer31.7835.9833.4431.7526.0531.80
Impact33.0635.2232.7630.7427.2431.80
Vernema32.8035.4932.9131.8526.5231.91
Fortress34.8035.1932.6530.5029.1532.06
Shield30.6234.2734.1632.1929.1132.07
Lahontan32.1636.4335.0932.1026.8532.53
Deseret34.9537.6034.5531.9426.9433.20
Average32.5834.9532.8930.7526.7131.57
CV (%)2.82
LSD (0.05)1.12
NOTES:
1. Rank ordered by average ADF (low to high)
2. Soil: Loam
3. pH = 7.6; OM(%) = 1.46
4. Previous crop: watermelons
5. Fertilizer and herbicide applied Fa111988
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on May 16,1988 7. Irrigation: sprinkler (hand-lines)
91ANNREP:ALFALFA\KAYSVILL.WQ1 RN:ADF
Table 13.
USU Kaysville Research Farm, Kaysville, UT. Total Digestible Nutrients (TDN) % - 1991.
Cut 1Cut 2Cut 3Cut 4Cut5
Variety6/67/58/59/410/22Average
Wrangler57.9557.3659.4459.4566.0660.05
Champ59.2956.8257.8059.9465.8959.95
Ultra58.4756.8758.0860.1365.7059.85
Legend58.9557.0757.9260.0864.8559.77
Vector58.1956.7257.7459.8565.5359.55
Agri-Mate57.4155.4958.3960.1865.3859.37
DK-12558.3455.7657.2160.4064.9459.33
WL-31657.5656.3558.2059.2064.6659.19
Ranger56.7856.5057.8059.4565.3659.18
P543257.6956.2557.7059.9664.2259.16
Edge57.8756.2658.2957.7665.0759.05
Archer58.5055.3457.2558.5265.3759.00
Vernema57.7355.7157.6558.4565.4258.99
Impact57.5455.9157.7659.2863.8958.88
Fortress56.2355.9357.8459.4664.5258.80
Shield59.3756.6356.7158.1962.9358.77
Lahontan58.2155.0156.0158.2564.7158.44
Deseret 56.11 54.12 56.42 58.38 64.93 57.99
Average 57.90 56.12 57.66 59.27 64.97 59.18
CV (%)1.17
LSD (0.05)0.87
NOTES:
1. Rank ordered by average TDN (high to low)
2. Soil: Loam
3. pH = 7.6; OM(%) = 1.46
4. Previous crop: watermelons
5. Fertilizer and herbicide applied Fall 1988
6. Seeding rate: 15lbs Pure Live Seed (PLS)/A on May 16, 1988 7. Irrigation: sprinkler (hand-lines)
91ANNREP:ALFALFA\KAYSVILL.WQl RN:TDN
EXPLANATION OF NIRS ANALYSIS
CP (Crude Protein)
An estimate of the nitrogen content x 6.25; it consists of the true protein and non-protein nitrogen on a 100% dry matter basis. The average CP of legume hays can range from 10-28%, grass hays 7-21 %, cereal grains 10-15%, and silages 8-26%.
ADF (Acid Detergent Fiber)
Fiber that consists mainly of lignin and cellulose; it can be used as an estimate of forage quality. The greater the ADF, the lower the quality. On a dry basis, the average ADF content of hays can range from 25-45%, grains 3-17%, and silages 25-42%. Generally speaking, the combination of high CP and low ADF levels reflects a good quality forage.
TDN (Total Digestible Nutrients)
An estimate of the digestible nutrients based on mathematical equations that use CP and ADF.
NEL (Net Energy Lactation)
An estimate of the energy available to the cow for lactation after digestion and metabolic losses have been removed.
Table 20. BYU Agricultural Station, Spanish Fork, Utah
County Utah. Dry cumulative yield tons/A.
TotalVARIETY / 1988 / 1989 / 1990 / Yield / AVL
Champ / 7.99 / 9.70 / 7.74 / 25.43 / 8.48
7890 / 7.58 / 9.07 / 7.30 / 23.95 / 7.98
Commander / 7.38 / 8.83 / 7.52 / 23.73 / 7.91
WL320 / 7.18 / 9.43 / 7.09 / 23.70 / 7.90
Fortress / 7.44 / 9.23 / 6.84 / 23.51 / 7.84
5432 / 6.95 / 9.48 / 6.83 / 23.26 / 7.75
315 / 7.18 / 8.98 / 6.54 / 22.70 / 7.57
Husky / 7.82 / 8.55 / 6.30 / 22.67 / 7.56
532 / 7.50 / 8.68 / 6.43 / 22.61 / 7.54
Ranger / 7.26 / 8.72 / 6.57 / 22.55 / 7.52
Flin t / 7.48 / 8.67 / 6.37 / 22.52 / 7.51
XAR53 / 7.32 / 8.44 / 6.71 / 22.4 7 / 7.49
Meteor / 6.92. / 8.92 / 6.60 / 22.44 / 7.48
Vernema / 7.75 / 8.18 / 6.50 / 22.43 / 7.48
Pike / 6.86 / 9.27 / 6.16 / 22.29 / 7.43
WL316 / 7.33 / 8.60 / 6.14 / 22.07 / 7.36
Average / 7.37 / 8.92 / 6.73 / 23.02 / 7.67
LSD(0.05) / 0.61 / NS / 0.59 / -- / 0.35
CV% / 5.10 / 6.60 / 5.30 / -- / 4.70
Note: Seeded August 31, 1987. Rank ordered by total yield
(high to low). The yield information on the BYU farm
was provided by Dwain Horrocks, BYU Agronomist,
275 Widtsoe Bldg., Provo, UT 84602. NIRS data was
provided by Utah State University under the direction
of Ralph E. Whitesides, Extension Agronomist.
9OANNREP:ALFALFA\
BYU90.WQl
27
Table 21. BYU Agricultural Station - Spanish Fork, Utah County, Utah.
Alfalfa Yield - Dry Tons/A, 1990.
Cut 1 / Cut 2 / Cut 3 / Cut 4Source / Variety / 6/6 / 7/17 / 8/15 / 10/4 / Total
Union / Champ / 2.77 / 2.15 / 1.41 / 1.41 / 7.74
Northrup King / Commandor / 3.01 / 2.00 / 1.34 / 1.17 / 7.52
Union / 7890 / 2.98 / 1.80 / 1.26 / 1.26 / 7.30
W-L Research / WL320 \ / 2.56 / 1.89 / 1.30 / 1.34 / 7.09
Northrup King / Fortress / 2.32 / 1.98 / 1.33 / 1.21 / 6.84
Pioneer / 5432 / 2.47 / 1.89 / 1.28 / 1.19 / 6.83
Pioneer / XAR53 / 2.38 / 1.90 / 1.26 / 1.17 / 6.71
Northrup King / Meteor / 2.37 / 1.74 / 1.25 / 1.24 / 6.60
Public / Ranger / 2.53 / 1.82 / 1.22 / 1.00 / 6.57
Union / 315 / 2.15 / 1.88 / 1.25 / 1.26 / 6.54
Public / Vernema / 2.12 / 1.82 / 1.32 / 1.24 / 6.50
Pioneer / 532 / 2.18 / 1.78 / 1.31 / 1.16 / 6.43
Lovelock / Flint / 2.22 / 1.68 / 1.26 / 1.21 / 6.37
Lovelock / Husky / 2.20 / 1.80 / 1.11 / 1.19 / 6.30
Northrup King / Pike / 1.86 / 1.74 / 1.30 / 1.26 / 6.16
W - L Research / WL316 / 2.05 / 1.67 / 1.19 / 1.23 / 6.14
Average / 2.39 / 1.85 / 1.27 / 1.22 / 6.73
LSD(0.05) / 0.50 / 0.18 / 0.16 / NS / 0.59
CV (%) / 12.5 / 5.6 / 7.5 / 9.1 / 5.3
Note: Rank ordered by total yield (high to low). Yield data provided
by Dwain Horrocks, Professor of Agronomy at BYU.
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Table 22. BYU Agricultural Station - Spanish Fork, Utah
County, Utah. Crude Protein % - 1990.
Cut 1 / Cut 2 / Cut 3 / Cut 4Variety / 6/6 / 7/17 / 8/15 / 10/4 / AVG
Flint / 19.89 / 19.13 / 20.71 / 19.65 / 19.85
WL320 / 19.06 / 18.17 / 19.77 / 21.48 / 19.62
Commandor / 18.66 / 17.42 / 22.46 / 19.94 / 19.62
Champ / 18.83 / 18.04 / 20.08 / 21.19 / 19.54 / !
i
Meteor / 19.83 / 16.66 / 20.23 / 21.37 / 19.52 / I
Fortress / 19.67 / 16.79 / 20.13 / 20.52 / 19.28 / I
WL316 / 18.40 / 17.12 / 20.78 / 20.47 / 19.19
XAR53 / 19.82 / 17.96 / 19.31 / 19.24 / 19.08
Ranger / 18.33 / 17.42 / 21.95 / 18.26 / 18.99 / I
5432 / 19.04 / 15.94 / 19.52 / 21.13 / 18.91 / I
Husky / 19.27 / 16.52 / 19.37 / 20.28 / 18.86
7890 / 18.23 / 17.68 / 19.56 / 19.79 / 18.82
532 / 19.44 / 16.41 / 19.70 / 19.73 / 18.82
Pike / 18.64 / 14.96 / 19.75 / 20.16 / 18.38
Vernema / 18. 09 / 15.71 / 18.81 / 18.79 / 17.85
315 / 18.71 / 14.37 / 19.10 / 19.04 / 17.81
Average / 18.99 / 16.89 / 20.08 / 20.07 / 19.01
CV (%) / 4.66
LSD (0.05) / NS
Note: Rank ordered by average crude protein (high to low). This
analysis is required for balancing animal diets. On a 100%
dry basis, the average CP content 'of legume hays can range
from 10-28%. The combination of high CP and low fiber
reflects a good quality forage. CP data provided by
Ralph Whitesides, USU Extension Agronomist.
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Table 23. BYU Agriculture Station, Spanish Fork, Utah County,
Utah. Acid Detergent Fiber (ADF)% -1990.
Cut 1 / Cut2 / Cut 3 / Cut 4Variety / 6/6 / 7/17 / 8/15 / 10/4 / AVL
Flint / 33.44 / 36.04 / 34.22 / 32.79 / 34.12
Commandor / 35.19 / 38.18 / 31.32 / 32.30 / 34.25
WL320 / 33.62 / 37.90 / 36.48 / 29.80 / 34.45
Meteor / 33.11 / 38.92 / 35.06 / 30.96 / 34.51
Ranger / 34.26 / 38.20 / 32.54 / 34.80 / 34.95
Champ / 34.17 / 38.22 / 36.30 / 31.49 / 35.05
XAR53 / 33.69 / 36.89 / 36.85 / 33.49 / 35.23
Fortress / 33.36 / 39.84 / 36.49 / 31.56 / 35.31
WL316 / 34.85 / 40.39 / 34.64 / 32.63 / 35.63
Husky / 34.13 / 40.52 / 36.29 / 31.98 / 35.73
5432 / 33.49 / 40.03 / 36.70 / 33.45 / 35.92
7890 / 35.97 / 39.11 / 37.11 / 33.12 / 36.33
Pike / 33.76 / 42.98 / 35.82 / 33.25 / 36.45
532 / 33.75 / 40.90 / 37.51 / 33.90 / 36.52
Vernema / 35.38 / 41.27 / 36.84 / 33.73 / 36.81
315 / 35.81 / 43.27 / 38.30 / 33.66 / 37.76
Average / 34.25 / 39.54 / 35.78 / 32.68 / 35.56
CV (%) / 3.86
LSD (0.05) / 1.95
Note: Rank ordered by ADF% (low to high). On a dry basis,
the average ADF content of hays can range from 25-45%.
The combination of high protein and low fiber reflects a
good quality forage. ADF data provided by Ralph Whitesides,
USU Extension Agronomist.
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Table 24. BYU Agriculture Station - Spanish Fork, Utah County, Utah.
Total digestible nutrients (TDN) % - 1990.
II
Cut 1 / Cut 2 / Cut 3 / Cut 4
Variety / 6/6 / 7/17 / 8/15 / 10/4 / AVG
Ranger / 56.63 / 53.67 / 57.92 / 56.23 / 56.11
WL320 / 57.12 / 53.90 / 54.97 / 59.99 / 56.50
Vernema / 55.79 / 51.36 / 54.69 / 57.04 / 54.72
7890 / 55.34 / 52.99 / 54.49 / 57.49 / 55.08 / !
,
Champ / 56.70 / 53.66 / 55.10 / 58.72 / 56.05
315 / 55.47 / 49.86 / 53.59 / 57.08 / 54.00
Meteor / 57.50 / 53.13 / 56.03 / 59.11 / 56.44
Fortress / 57.31 / 52.44 / 54.96 / 58.67 / 55.85
Pike / 57.01 / 50.08 / 55.46 / 57.39 / -54.99
5432 / 57.21 / 52.30 / 54.80 / 58.75 / 55.77
XAR53 / 57.06 / 54.66 / 54.69 / 57.21 / 55.91
532 / 57.02 / 51.64 / 54.19 / 56.90 / 54.94
Commandor / 55.94 / 3.69 / 58.84 / 58.10 / 56.64
Flint / 57.25 / 55.29 / 56.67 / 57.74 / 56.74
Husky / 56.73 / 51.93 / 55.11 / 58.35 / 55.53
WL316 / 56.19 / 52.03 / 56.35 / 57.86 / 55.61
Average / 56.64 / 52.66 / 55.49 / 57.91 / 55.68
CV (%) / 1.87
LSD (0.05) / 1.48
Note: Rank ordered by average TDN % (high to low). TDN is an
estimate of the digestible nutrients based on mathematical equations
that use crude protein and acid detergent fiber. TDN data
provided by Ralph Whitesides, USU Extension Agronomist.
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