Table 2. Mean yield, agronomic traits, and feed quality characteristics of 13 corn hybrids evaluated for silage in small plot replicated trials at four REC locations in Tennessee during 2018. Analysis included hybrid performance over a 1 yr (2018), 2 yr (2017-2018), and 3 yr (2016-2018) period.

HybridHerbicide Pkg.‡Insect Pkg.‡Avg. Yield Dry Weight
(tons/acre)
1 yr
MS
Avg. Yield Dry Weight
1 yr
Avg. Yield Dry Weight
(tons/acre)
2 yr
MS Avg. Yield Dry Weight
2 yr
Avg. Yield Dry Weight
(tons/acre)
3 yr
MS
Avg. Yield Dry Weight
3 yr
Avg. Yield 65% Moisture
(tons/acre)
1 yr
MS
Avg. Yield 65% Moisture
1 yr
Avg. Yield 65% Moisture
(tons/acre)
2 yr
MS
Avg. Yield 65% Moisture
2 yr
Avg. Yield 65% Moisture
(tons/acre)
3 yr
MS
Avg. Yield 65% Moisture
3 yr
Milk/ton§
(lbs/ton)
1 yr
MS
Milk/ton§
1 yr
Milk/ton§
(lbs/ton)
2 yr
MS
Milk/ton§
2 yr
Milk/ton§
(lbs/ton)
3 yr
MS
Milk/ton§
3 yr
Milk/acre§
(lbs/acre)
1 yr
MS Milk/acre§
1 yr
Milk/acre§
(lbs/acre)
2 yr
MS Milk/acre§
2 yr
Milk/acre§
(lbs/acre)
3 yr
MS Milk/acre§
3 yr
Moisture at Harvest
(%)
1 yr
MS
Moisture at Harvest
1 yr
Moisture at Harvest
(%)
2 yr
MS
Moisture at Harvest
2 yr
Moisture at Harvest
(%)
3 yr
MS
Moisture at Harvest
3 yr
Plant Height
(inches)
1 yr
MS
Plant Height
1 yr
Plant Height
(inches)
2 yr
MS
Plant Height
2 yr
Plant Height
(inches)
3 yr
MS
Plant Height
3 yr
Ear Height
(inches)
1 yr
MS
Ear Height
1 yr
Ear Height
(inches)
2 yr
MS
Ear Height
2 yr
Ear Height
(inches)
3 yr
MS
Ear Height
3 yr
Lodging
(%)
1 yr
MS
Lodging
1 yr
Lodging
(%)
2 yr
MS
Lodging
2 yr
Lodging
(%)
3 yr
MS
Lodging
3 yr
CP
(% dm)
1 yr
MS
CP
1 yr
CP
(% dm)
2 yr
MS
CP
2 yr
CP
(% dm)
3 yr
MS
CP
3 yr
NDF
(% dm)
1 yr
MS
NDF
1 yr
NDF
(% dm)
2 yr
MS
NDF
2 yr
NDF
(% dm)
3 yr
MS
NDF
3 yr
30h IV NDFD
(% of NDF)
1 yr
MS
30h IV NDFD
1 yr
30h IV NDFD
(% of NDF)
2 yr
MS
30h IV NDFD
2 yr
30h IV NDFD
(% of NDF)
2 yr
MS
30h IV NDFD
2 yr
Starch
(% dm)
1 yr
MS
Starch
1 yr
Starch
(% dm)
2 yr
MS
Starch
2 yr
Starch
(% dm)
3 yr
MS
Starch
3 yr
ADF
(% dm)
1 yr
MS
ADF
1 yr
ADF
(% dm)
2 yr
MS
ADF
2 yr
ADF
(% dm)
3 yr
MS
ADF
3 yr
TDN
(% dm)
1 yr
MS
TDN
1 yr
TDN
(% dm)
2 yr
MS
TDN
2 yr
TDN
(% dm)
3 yr
MS
TDN
3 yr
NEL
(Mcals/lb)
1 yr
MS
NEL
1 yr
NEL
(Mcals/lb)
2 yr
MS
NEL
2 yr
NEL
(Mcals/lb)
3 yr
MS
NEL
3 yr
Croplan S5900VT2P***RRVT2P8.8a8.9a8.8a25a26a25a2840a-c2933d2922b25056a26182a25844a59a-c64a64a116c-e118c115a51cd50b49a0.0c0.0a0.0b7.0b-d7.3b7.3b46.1b-d50.3ab50.6a44.7a51.4bc51.2a26.5a-c22.2cd22.7a26.3bc29.4ab28.9a65.6a-c67.5c67.7b0.63a-c0.64c0.66b
TN Exp TN1803WCONVCONV8.3a24a2480d20692aa61a133a69a2.0a6.2e56.1a44.1a20.0d34.0a60.9d0.58d
Augusta A7768***GT,LLVIP31108.2a8.5ab8.4ab24a24ab24ab3003a3065a-c3035a24632a26137a25301a60a-c64ab63a119bc122ab118a49d-f46c45c0.5b0.4a0.3a7.0bc7.1bc7.1b44.2cd48.1b-d48.7a46.3a52.0ab51.6a28.9a-c25.2bc25.2a25.1c27.6b-d27.5a67.8a69.1ab69.1ab0.66a0.66ab0.68a
Terral 25BHR26RR2,LLYGCB,HX18.0a8.2b8.1b23a23b23b2936a-c3107ab3093a23511a25526a24230a59a-c64ab63a115c-e117c114a52cd49b47b0.0c0.0a0.0b7.6a7.8a7.8a45.9b-d47.4cd47.5a47.6a53.7a53.2a26.3a-c25.7ab26.2a26.7bc27.3cd26.7a67.3ab70.0a70.2a0.64a-c0.67ab0.69a
Masters Choice MCT6552RR,LLVIP31108.0a23a2790c22487aa55e112ef45f0.1bc6.5c-e45.0b-d44.3a30.5ab25.8bc64.9c0.62bc
Croplan S5700VT2PRRVT2P8.0a23a2778c22270aa61a117cd53bc0.0bc6.5de48.1bc44.5a24.3cd27.4bc64.7c0.62c
Taylor Seed Farms 8890VT2PRRVT2P7.9a23a3001a23713aa61ab113de50c-e0.1bc6.9b-d44.6cd46.4a28.5a-c25.9bc67.9a0.65a
Masters Choice MCT6653**RR,LL3000GT7.8a8.2b22a23b2810bc2952d22043a24309a58c-e62b-d122b125a56b53a0.2bc0.1a6.9b-d7.1bc49.6b52.4a47.7a53.3a24.2cd22.1d29.2b30.8a65.6a-c68.0bc0.62c0.64c
Croplan 5678SS**RR,LLVT2P7.7a8.0b22a23b2836bc2949d21853a23749a58b-d62a-d105g108e46f43d0.1bc0.1a7.1b7.2bc46.1b-d49.0bc44.4a50.0c27.2a-c25.4b26.4bc28.4b-d65.3bc67.3c0.63a-c0.65c
Masters Choice MCT6733RR,LL3000GT7.7a8.0b22a23b2796c2962cd21539a23746a57de61d117cd119bc47ef44d0.1bc0.0a6.5c-e6.8c48.0bc49.9a-c45.6a52.1ab26.2a-c24.9b-d27.8bc28.9a-c65.1bc67.9bc0.62c0.65c
Terral 28BHR18RR2,LLYGCB,HX17.6a22a2862a-c22744aa59b-d115c-e52b-d0.1bc7.0b-d47.7b-d46.1a25.4bc27.6bc66.1a-c0.63a-c
Terral 25BHR89RR2,LLYGCB,HX17.6a8.2b22a23b2863a-c3014b-d21750a25353a60a-c62cd114c-e119bc51cd50b0.0c0.1a6.9b-d7.0bc47.1b-d48.6b-d44.5a52.3ab26.0a-c25.6b27.3bc28.0b-d66.0a-c68.6a-c0.64a-c0.65bc
Masters Choice MCT6363RR,LL3000GT7.4a7.4c21a21c2960ab3122a23455a23825a58c-e63a-c108fg112d47ef45cd0.0c0.0a6.6b-e6.8c43.3d46.2d46.7a52.7ab30.8a28.7a24.9c26.8d67.4ab69.9a0.65ab0.67a

* Hybrids marked with an asterisk were in the top performing “A” group for yield within two (**) or three (***) consecutive years of the previous three year evaluation period.

† For a full description of abbreviated biotech traits, see table 5.

‡ Hybrids that have any MS letter in common, within a column, are not significantly different at the 5% level of probability using a least significant difference (LSD) mean separation test.

  • Based on University of Wisconsin Milk2006 software program.

‖ Lodging data was transformed due to non-normality. Least square means were back-transformed for ease of interpretation, therefore mean separation letters but no LSD value are given.

¶ Quality values were calculated on a 100% dry matter (DM) basis

CP = Crude Protein, NDF = Neutral Detergent Fiber, 30h IV NDFD = Neutral Detergent Fiber Digestibility, ADF = Acid Detergent Fiber, TDN = Total Digestible Nutrients, NEL = Net Energy for Lactation 

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