Table 5-b. Plateau (Crossville) Yield and Feed Quality Characteristics

Table 5-b. By location mean dry weight yield and feed quality characteristics of eight corn hybrids evaluated for silage in small plot replicated trials at the Plateau AgResearch and Education Center in Crossville, Tennessee during 2021. Analysis included hybrid performance across a 1 yr (2021), 2 yr (2020-2021) and 3 yr (2019-2021) period.

HybridHerb. Pkg.†Insect Pkg.†Avg. Yield Dry Weight
(tons/acre)
     Crude Protein¶
(% dm)
     Neutral Detergent Fiber¶
(% dm)
     30 hr In Vitro Neutral Detergent Fiber Digestibility¶ (% of NDF)     
1 yr‡2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
Croplan CP5900SRRVT2P9.2A7.6A8.3A8.3A7A6.7A45.1A47A48.8A59A52.8AB54.1A
Croplan CP5700SRRVT2P9.7A7.6A8.2A7.8A6.8A6.7A45.8A46.4A47.2A61A54.3A54.8A
Dyna-Gro D55VC80RRV2TP9A7.6A8.6A7.4A43.6AB45.1A59.4A54.1A
DeKalb DKC 70-64 RIBRRVT2P9.8A8.1A8.8A7.4A43.9A47.5A57.4A51.1B
DeKalb DKC64-64 RIBRRVT2P8A8.4A45.9A58.9A
DeKalb DKC67-66 RIBRRVT2P9.2A7.8A44.5A56.4A
DeKalb DKC61-80 RIBRRVT2P8.7A7.7A47.9A56.9A
Croplan CP5370RRVT2P8.5A8.6A39.6B58.7A
Average97.78.28.27.16.744.546.54858.553.154.4
Standard Error0.51.71.30.41.20.71.42.11.61.16.13.9
L.S.D..05N.S.N.S.N.S.N.S.N.S.N.S.4.3N.S.N.S.N.S.1.8N.S.
C.V.968787666333
Plots per entry (reps x locs.)369369369369

HybridHerb. Pkg.†Insect Pkg.†Starch¶
(% dm)
     Acid Detergent Fiber¶
(% dm)
     Total Digestable Nutrients¶
(% dm)
     Net Energy for Lactation¶
(Mcals/lb)
     
1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
Croplan CP5900SRRVT2P20.7BC22.4B20.4A22.7A24A25.7A73.3A69.8BC67.2A0.68B0.67BC0.64A
Croplan CP5700SRRVT2P19.8C23.6B22.5A23.4A23.6A24.9A73.4A71.1AB68.7A0.67B0.68B0.66A
Dyna-Gro D55VC80RRV2TP24.9AB27.4A21.8A22.6A76.8A73.6A0.72A0.71A
DeKalb DKC 70-64 RIBRRVT2P20.8BC20.9B22A24.1A72A67.5C0.67B0.64C
DeKalb DKC64-64 RIBRRVT2P20.2BC24.1A73.3A0.68B
DeKalb DKC67-66 RIBRRVT2P21.6BC23.7A72.4A0.68B
DeKalb DKC61-80 RIBRRVT2P20.4BC24.7A73.2A0.68B
Croplan CP5370RRVT2P28.6A20.1A76.4A0.73A
Average22.123.621.422.823.625.373.870.5680.690.670.65
Standard Error1.72.32.30.91.21.61.13.43.10.010.020.02
L.S.D..055.13.7N.S.N.S.N.S.N.S.N.S.2.5N.S.0.040.03N.S.
C.V.131313777333344
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.
¶ Nutritive content values were calculated on a 100% dry matter (DM) basis.

Virginia Sykes
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