Table 4-a. East Tennessee (Knoxville) Yield and Agronomic Traits

Table 4-a. By location mean yield and agronomic traits of eight corn hybrids evaluated for silage in small plot replicated trials at the East Tennessee AgResearch and Education Center in Knoxville, Tennessee during 2021. Analysis included hybrid performance over a 1 yr (2021), 2 yr (2020-2021) and 3 yr (2019-2021) 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
Croplan CP5900SRRVT2P11.2A9.7A9.6A32A28A27A3216A3339A3306A36174A32087A31693A
Croplan CP5700SRRVT2P10.3BC8.7A8.7B30BC25A25B3149A3298A3221B32541B-D28444A27976B
Dyna-Gro D55VC80RRV2TP10.3BC9.1A29BC26A3157A3326A32479B-D29961A
DeKalb DKC 70-64 RIBRRVT2P10.9AB9.4A31AB27A3215A3196A35041AB30108A
DeKalb DKC64-64 RIBRRVT2P9.3D27D3218A30021D
DeKalb DKC67-66 RIBRRVT2P10.7A-C31A-C3194A34323A-C
DeKalb DKC61-80 RIBRRVT2P10CD29CD3159A31694CD
Croplan CP5370RRVT2P10.1B-D29B-D3231A32599B-D
Average10.49.29.2302626319232903264331093015029835
Standard Error0.31.50.91433811397119640222476
L.S.D..050.82N.S.0.92.4N.S.2N.S.N.S.703312N.S.2776
C.V.599599232699
Plots per entry (reps x locs.)369369369369

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
Croplan CP5900SRRVT2P65AB64AB64A133A120A113A52A44A44A000.5
Croplan CP5700SRRVT2P67A66A66A129AB120A114A53A45A45A000.2
Dyna-Gro D55VC80RRV2TP62C61C123B113A49A43A00
DeKalb DKC 70-64 RIBRRVT2P63BC63BC126AB120A50A46A00
DeKalb DKC64-64 RIBRRVT2P62C113C50A0
DeKalb DKC67-66 RIBRRVT2P65AB125AB48A0
DeKalb DKC61-80 RIBRRVT2P63BC126AB48A0
Croplan CP5370RRVT2P62BC124B50A0
Average646365125118113504544000.3
Standard Error1113109275000.67
L.S.D..0532N.S.8N.S.N.S.N.S.N.S.N.S....
C.V.322445885...
Plots per entry (reps x locs.)369369369369

* 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 significant 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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