Table 3. By Location Comparison of Yield

Table 3. Location comparison of mean dry weight yields of eight corn hybrids evaluated for silage in replicated small plot trials at four REC locations in 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)
     Knoxville
(tons/acre)
     Crossville
(tons/acre)
     Spring Hill
(tons/acre)
     Springfield
(tons/acre)
     
1 yr‡2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
Croplan CP5900SRRVT2P8A7.5A7.8A11.2A9.7A9.6A9.2A7.6A8.3A4.8A5.9A6.4A6.9A6.8A6.8A
Croplan CP5700SRRVT2P7.7A7.1A7.5A10.3BC8.7A8.7B9.7A7.6A8.2A4.2A5.7A6.4A6.5A6.5A6.8A
Dyna-Gro D55VC80RRV2TP7.6A7.5A10.3BC9.1A9A7.6A4.3A6A6.6A7.2A
DeKalb DKC 70-64 RIBRRVT2P7.7A7.3A10.9AB9.4A9.8A8.1A4.2A5.7A5.8A5.9A
DeKalb DKC64-64 RIBRRVT2P7.3A9.3D8A4.7A7.1A
DeKalb DKC67-66 RIBRRVT2P7.6A10.7A-C9.2A4.9A5.9A
DeKalb DKC61-80 RIBRRVT2P7.5A10CD8.7A4.9A6.2A
Croplan CP5370RRVT2P7.5A10.1B-D8.5A4.7A6.6A
Average7.67.37.710.49.29.297.78.24.65.86.46.56.66.8
Standard Error1.30.70.60.31.50.90.51.71.30.41.510.70.50.3
L.S.D..05N.S.N.S.N.S.0.82N.S.0.86N.S.N.S.N.S.N.S.N.S.N.S.N.S.N.S.N.S.
C.V.101011599968121015141413
Plots per entry (reps x locs.)122436369369369369

* 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.

Virginia Sykes
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