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 2020. Analysis included hybrid performance over a 1 yr (2020), 2 yr (2019-2020) and 3 yr (2018-2020) period.
Hybrid Herb. 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 yr 3 yr 1 yr 2 yr 3 yr 1 yr 2 yr 3 yr 1 yr 2 yr 3 yr
Hybrid Herbicide Pkg.‡ Insect Pkg.‡ Dry Weight Avg. Yield
(tons/acre)MS Dry Weight Avg. Yield Dry Weight Avg. Yield
(tons/acre)MS Dry Weight Avg. Yield Dry 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% Moisture Milk/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)
CS19005 7.9 A 22 A 3496 ABC 27443 A
Dyna-Gro D55VC80 RR V2TP CS17001 7.4 A 21 A 3562 ABC 26301 A
Croplan CP5678 RR VT2P CS16001 8.1 A 8.8 A 8.9 A 23 A 25 A 25 A 3462 ABC 3351 A 3207 A 27999 A 29453 A 28584 A
Croplan CP5900S*** RR VT2P CS20002 7.9 A 23 A 3178 D 25175 A
DeKalb DKC 70-64 RR VT2P CS20003 7.3 A 21 A 3606 AB 26244 A
DeKalb DKC 64-44 RR,LL SSX CS19007 7.4 A 21 A 3423 C 25458 A
Dyna-Gro D57VC17 RR V2TP CS18005 7.1 A 7.9 A 8.0 A 20 A 23 A 23 A 3447 BC 3257 A 3075 B 24348 A 25694 A 24544 B
Croplan CP5700S*** RR VT2P CS20001 7.1 A 20 A 3606 A 25647 A
Average 7.5 8.4 8.5 21 24 24 3473 3304 3141 26077 27573 26564
Standard Error 0.5 0.8 0.5 1 2 1 53 152 187 1742 2086 1694
L.S.D..05 N.S. N.S. N.S. N.S. N.S. N.S. 157 N.S. 125 N.S. N.S. 3191
C.V. 12 11 10 12 11 10 3 2 4 11 11 11
Plots per entry (reps x locs.) 12 24 36 12 24 36 12 24 36 12 24 36
Table 4-a, cont.
| Hybrid | Herb. Pkg.† | Insect Pkg.† | Moisture at Harvest (%) | Plant Height (inches) | Ear Height (inches) | Lodging‖ (%) | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 yr | 2 yr | 3 yr | 1 yr | 2 yr | 3 yr | 1 yr | 2 yr | 3 yr | 1 yr | 2 yr | 3 yr | ||||||||||||||||
| Hybrid | Herbicide Pkg.‡ | Insect Pkg.‡ | Moisture at Harvest | MS Moisture at Harvest | Moisture at Harvest | MS Moisture at Harvest | Moisture at Harvest | MS Moisture at Harvest | Plant Height (inches) | MS Plant Height | Plant Height (inches) | MS Plant Height | Plant Height (inches) | MS Plant Height | Ear Height (inches) | MS Ear Height | Ear Height (inches) | MS Ear Height | Ear Height (inches) | MS Ear Height | Lodging (%) | MS Lodging | Lodging (%) | MS Lodging | Lodging (%) | MS Lodging | |
| CS19005 | 60 | C | 103 | CD | 37 | AB | 0.0 | ||||||||||||||||||||
| Dyna-Gro D55VC80 | RR | V2TP | CS17001 | 62 | BC | 93 | E | 29 | C | 0.0 | |||||||||||||||||
| Croplan CP5678 | RR | VT2P | CS16001 | 63 | AB | 64 | A | 61 | B | 107 | BC | 103 | A | 105 | A | 37 | AB | 40 | A | 41 | A | 0.0 | 0.7 | ||||
| Croplan CP5900S*** | RR | VT2P | CS20002 | 63 | AB | 113 | A | 42 | A | 0.0 | |||||||||||||||||
| DeKalb DKC 70-64 | RR | VT2P | CS20003 | 62 | BC | 100 | D | 35 | BC | 0.0 | |||||||||||||||||
| DeKalb DKC 64-44 | RR,LL | SSX | CS19007 | 62 | BC | 98 | DE | 36 | AB | 0.0 | |||||||||||||||||
| Dyna-Gro D57VC17 | RR | V2TP | CS18005 | 65 | A | 65 | A | 64 | A | 110 | AB | 107 | A | 109 | A | 37 | AB | 40 | A | 43 | A | 0.0 | 0.3 | ||||
| Croplan CP5700S*** | RR | VT2P | CS20001 | 65 | A | 98 | DE | 31 | BC | 0.0 | |||||||||||||||||
| Average | 63 | 65 | 63 | 103 | 105 | 107 | 35 | 40 | 42 | 0.0 | 0.5 | 0.3 | |||||||||||||||
| Standard Error | 1 | 1 | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 0.0 | 0.32 | 0.22 | |||||||||||||||
| L.S.D..05 | 2 | N.S. | 3 | 6 | N.S. | N.S. | 7 | N.S. | N.S. | . | . | . | |||||||||||||||
| C.V. | 2 | 3 | 4 | 3 | 5 | 4 | 11 | 6 | 9 | . | . | . | |||||||||||||||
| Plots per entry (reps x locs.) | 12 | 24 | 36 | 12 | 24 | 36 | 12 | 24 | 36 | 12 | 24 | 36 | |||||||||||||||
* 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 vsykes@utk.edu
- Table 1. 2021 Total entry numbers - December 26, 2021
- Table A-35. Mean yields and agronomic data from Memphis, TN, MG-5 - December 23, 2021
- Table A-34. Mean yields and agronomic data from Jackson, TN, MG-5 - December 22, 2021