Table 2-a. Across location mean yield and agronomic traits of eight corn hybrids evaluated for silage in small plot replicated trials at four REC locations in Tennessee during 2020. Analysis included hybrid performance over a 1 yr (2020), 2 yr (2019-2020) and 3 yr (2018-2020) period.

HybridHerb. Pkg.†Insect Pkg.†Avg. Yield Dry Weight
(tons/acre)
     Avg. Yield 65% Moisture
(tons/acre)
    Milk/ton§
(lbs/ton)
    Milk/acre§
(lbs/acre)
    
1 yr‡2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
HybridHerbicide Pkg.‡Insect Pkg.‡Dry Weight Avg. Yield
(tons/acre)
MS Dry Weight Avg. YieldDry Weight Avg. Yield
(tons/acre)
MS Dry Weight Avg. YieldDry Weight Avg. Yield
(tons/acre)
MS Dry Weight Avg. Yield Avg. Yield 65% Moisture
(tons/acre)
MS Avg. Yield 65% Moisture Avg. Yield 65% Moisture
(tons/acre)
MS Avg. Yield 65% Moisture Avg. Yield 65% Moisture
(tons/acre)
MS Avg. Yield 65% MoistureMilk/ton§MS Milk/ton§Milk/ton§MS Milk/ton§Milk/ton§MS Milk/ton§Milk/acre§
(lbs/acre)
MS Milk/acre§Milk/acre§
(lbs/acre)
MS Milk/acre§Milk/acre§
(lbs/acre)
LSM1MS1LSM2LSMx
#N/A#N/A#N/ACS190057.4A21A3249AB23263A
Dyna-Gro D55VC80RRV2TPCS170017.1A20A3192AB22158A
Croplan CP5678RRVT2PCS160017.0A7.7A8.1A20A22A23A3133B3046A2977A21348A23001A23686A
Croplan CP5900S***RRVT2PCS200026.9A20A2874C19505A
DeKalb DKC 70-64RRVT2PCS200036.7A19A3311A21698A
DeKalb DKC 64-44RR,LLSSXCS190076.7A19A3280AB21625A
Dyna-Gro D57VC17RRV2TPCS180056.6A7.5A7.6A19A21A22A3153B3071A2974A20068A22477A22408A
Croplan CP5700S***RRVT2PCS200016.6A19A3235AB20728A
Average6.97.67.8202222317830592975212992273923047
Standard Error0.50.80.6122114105104254123871490
L.S.D..05N.S.N.S.N.S.N.S.N.S.N.S.151N.S.N.S.N.S.N.S.N.S.
C.V.121212121212656141415
Plots per entry (reps x locs.)122436122436122436122436

Table 2-a, cont. 

HybridHerb. Pkg.†Insect Pkg.†Moisture at Harvest
(%)
    Plant Height
(inches)
    Ear Height
(inches)
    Lodging‖
(%)
    
1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
HybridHerbicide Pkg.‡Insect Pkg.‡Moisture at HarvestMS Moisture at HarvestMoisture at HarvestMS Moisture at HarvestMoisture at HarvestMS Moisture at HarvestPlant Height
(inches)
MS Plant HeightPlant Height
(inches)
MS Plant HeightPlant Height
(inches)
MS Plant HeightEar Height (inches)MS Ear HeightEar Height (inches)MS Ear HeightEar Height (inches)MS Ear HeightLodging
(%)
MS LodgingLodging
(%)
MS LodgingLodging
(%)
MS Lodging
#N/A#N/A#N/ACS1900565B104ABC39AB0.0
Dyna-Gro D55VC80RRV2TPCS1700165B100CD36CD0.0
Croplan CP5678RRVT2PCS1600167A65B63B106AB107A110A39AB42A45A0.00.20.2
Croplan CP5900S***RRVT2PCS2000267A105AB41A0.0
DeKalb DKC 70-64RRVT2PCS2000366B101BCD37BCD0.1
DeKalb DKC 64-44RR,LLSSXCS1900765B102BCD38ABC0.0
Dyna-Gro D57VC17RRV2TPCS1800567A66A64A107A110A112A39ABC42A45A0.10.10.2
Croplan CP5700S***RRVT2PCS2000167A98D35D0.0
Average6666641031091113842450.00.20.2
Standard Error2124332340.00.090.08
L.S.D..051115N.S.N.S.3N.S.N.S....
C.V.2236441188...
Plots per entry (reps x locs.)122436122436122436122436

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

† For a full description of abbreviated biotech traits, see table 10.

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

§ Based on University of Wisconsin Milk2006 software program.

‖ ANOVA was not performed for lodging, mean values are given.

Virginia Sykes
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