Table 15-a. Location comparison of mean height in Apr. and May. of 60 cover crop varieties evaluated in small plot replicated trials at three University of Tennessee AgResearch and Education Center locations in Tennessee during 2019-2020.
Variety Common Name Group Height (in)
Apr May
Avg. RECM MTREC ETREC Avg. RECM MTREC ETREC
Brassicas
Impact Collards Brassica 20 D 24 C-E 10 L-P 25 FG 24 H-L 25 E-L 13 L-O 33 D-H
Extender Hyb. Brassica Brassica 4 T-X 3 ST 3 W-Y 6 N-T 21 K-Q 28 D-H 2 ST 32 E-K
Viva Hyb. Brassica Brassica 25 C 24 C-E 13 H-L 36 B-D 31 E 34 D 13 L-O 48 B
Vivant Hyb. Brassica Brassica 13 H-M 13 I-M 6 Q-X 20 G-I 22 H-O 27 D-J 5 Q-T 34 D-F
Aerifi Radish Brassica 18 D-F 21 E-G 5 S-Y 28 EF 19 M-R 26 D-K 2 ST 28 E-N
Digger Radish Brassica 19 DE 19 F-H 11 K-O 29 D-F 18 N-R 26 D-K 5 Q-T 24 H-Q
SERALPHA Radish Brassica 18 D-F 21 E-G 8 N-V 25 FG 17 P-R 26 D-K 1 T 25 G-P
SERWF19 Radish Brassica 19 D-F 23 D-F 3 W-Y 31 C-F 17 P-R 24 F-M 1 T 27 F-O
Smart Radish Brassica 21 D 22 D-F 6 P-X 34 C-E 20 L-Q 26 D-K 4 R-T 29 E-M
Driller Radish Brassica 25 C 26 CD 5 R-Y 43 AB 23 H-N 28 D-H 11 M-Q 30 E-L
Jackpot Turnip Brassica 21 D 22 D-F 17 D-H 24 FG 24 H-L 27 D-I 7 O-T 37 C-E
Average 18.4 19.8 8 27 21 27 6 31
Min 3.9 2.7 3 6 17 24 1 24
Max 24.6 26 17 43 31 34 13 48
Range 20.7 23.3 14 36 14 10 12 24
† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation was performed across all entries. Varieties within the “A group” were top performers across all entries and mean separation letters of these entries are highlighted in dark orange.
For ease of viewing, the table is broken into functional groups (brassicas, cereals, legumes). Mean values for top performers within each functional group are highlighted in light orange (50th – 75th percentile) and dark orange (> 75th percentile).
Table 15-b. Location comparison of mean biomass of 60 cover crop varieties evaluated in small plot replicated trials at three University of Tennessee AgResearch and Education Center locations in Tennessee during 2019-2020.
Variety Common Name Group Height (in)
Apr May
Avg. RECM MTREC ETREC Avg. RECM MTREC ETREC
Cereals
Centurion Annual Ryegrass Cereal 8 N-R 8 N-R 9 L-R 8 L-T 21 J-P 30 D-F 16 H-M 17 P-T
Lowboy Annual Ryegrass Cereal 3 V-X 3 R-T 4 W-Y 2 ST 11 TU 16 M-R 8 O-S 10 T-V
140760 Barley Cereal 11 K-O 9 L-P 10 K-P 12 J-P 23 H-O 25 D-L 21 E-K 22 L-R
140789 Barley Cereal 7 P-T 5 O-T 6 P-X 9 J-S 20 L-Q 20 H-Q 15 J-N 25 G-P
140797 Barley Cereal 9 N-Q 7 N-S 8 N-V 11 J-R 23 H-M 24 F-M 16 I-M 30 E-M
SB255 Barley Cereal 13 H-M 13 I-M 10 L-P 16 H-K 23 H-M 26 D-K 21 E-K 23 K-R
Secretariat Barley Cereal 11 J-N 12 I-N 9 M-S 12 J-O 20 L-Q 18 K-R 18 F-L 23 I-Q
Bates RS4 Cereal Rye Cereal 33 AB 29 BC 21 B-E 49 A 53 BC 55 B 43 C 62 A
Elbon (1) Cereal Rye Cereal 25 C 22 D-F 17 D-G 35 C-E 57 AB 61 AB 48 BC 63 A
Elbon (2) Cereal Rye Cereal 21 D 14 H-K 18 B-F 30 C-F 54 BC 56 AB 48 BC 58 A
Goku Cereal Rye Cereal 26 C 21 D-F 18 C-G 37 BC 54 BC 53 BC 48 BC 63 A
NF95319B Cereal Rye Cereal 32 B 31 AB 22 AB 43 AB 56 A-C 60 AB 48 BC 60 A
NF97325 Cereal Rye Cereal 32 B 28 BC 21 B-D 48 A 59 A 60 AB 54 AB 64 A
NF99362 Cereal Rye Cereal 27 C 23 D-F 22 A-C 37 BC 52 C 45 C 50 AB 61 A
Wintergrazer 70 Cereal Rye Cereal 36 A 36 A 26 A 46 A 60 A 64 A 55 A 61 A
Yankee Cereal Rye Cereal 10 L-P 9 M-Q 9 M-T 13 I-O 40 D 46 C 31 D 44 BC
Cosaque Oat Cereal 13 I-M 11 J-N 11 J-N 16 H-J 30 EF 33 DE 24 EF 33 D-H
Bob Oat Cereal 10 K-O 10 K-O 9 M-T 13 H-O 19 L-R 22 F-O 16 I-M 21 M-R
Hilliard Wheat Cereal 16 E-H 14 H-L 14 G-K 20 GH 26 F-I 24 F-M 22 E-I 32 E-J
Liberty 5658 Wheat Cereal 16 F-I 16 HI 17 D-H 14 H-M 26 F-H 29 D-G 24 E-G 26 F-P
† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation was performed across all entries. Varieties within the “A group” were top performers across all entries and mean separation letters of these entries are highlighted in dark orange.
For ease of viewing, the table is broken into functional groups (brassicas, cereals, legumes). Mean values for top performers within each functional group are highlighted in light orange (50th – 75th percentile) and dark orange (> 75th percentile).
Table 15-c. Location comparison of mean biomass of 60 cover crop varieties evaluated in small plot replicated trials at three University of Tennessee AgResearch and Education Center locations in Tennessee during 2019-2020.
Variety Common Name Group Height (in)
Apr May
Avg. RECM MTREC ETREC Avg. RECM MTREC ETREC
Legumes
FIXatioN Clover, Balansa Legume 5 R-X 4 Q-T 7 O-W 4 P-T 20 L-Q 24 F-M 17 G-L 19 N-S
Paradana Clover, Balansa Legume 4 S-X 5 O-T 5 Q-Y 2 ST 10 UV 11 RS 9 N-R 9 T-V
Viper Clover, Balansa Legume 6 Q-V 5 P-T 5 S-Y 8 K-T 15 R-T 14 O-R 12 L-P 18 O-T
Balady Clover, Berseem Legume 2 X 1 T 4 V-Y 1 T 6 V 4 S 1 T 14 R-V
Frosty Clover, Berseem Legume 7 P-T 9 M-Q 8 N-U 4 Q-T 18 O-R 25 D-L 18 F-L 11 S-V
AU Sunrise Clover, Crimson Legume 7 O-T 4 Q-T 8 N-U 10 J-S 21 J-P 19 J-R 22 E-I 23 J-Q
Bolsena Clover, Crimson Legume 6 Q-W 4 Q-T 9 L-Q 3 R-T 21 J-P 18 K-R 23 E-H 22 L-R
Dixie Clover, Crimson Legume 7 P-U 4 Q-T 10 L-P 6 O-T 21 I-P 23 F-M 21 E-J 21 M-R
Kentucky Pride Clover, Crimson Legume 4 S-X 2 T 8 N-V 4 Q-T 17 P-R 17 L-R 18 F-L 16 Q-U
SECCM18 Clover, Crimson Legume 7 P-T 4 R-T 10 L-P 7 M-T 21 K-P 18 K-R 20 E-K 24 I-Q
White Cloud Clover, Crimson Legume 6 Q-W 3 R-T 10 L-P 4 Q-T 16 Q-S 13 P-R 19 F-L 16 Q-U
Big Red Clover, Red Legume 2 WX 2 T 2 XY 3 ST 8 UV 13 P-R 6 P-T 6 V
Blaze Clover, Red Legume 4 T-X 2 T 1 Y 8 K-T 9 UV 14 N-R 6 Q-T 7 UV
GA9909 Clover, Red Legume 3 V-X 3 R-T 4 U-Y 2 ST 11 S-U 16 M-R 7 O-T 11 S-V
VNS Clover, Red Legume 3 U-X 3 R-T 5 T-Y 2 ST 9 UV 12 QR 9 N-R 7 UV
VNS Vetch, Common Legume 13 I-M 16 G-I 10 L-P 12 J-P 17 P-R 20 H-Q 13 L-O 18 O-T
AU Merit Vetch, Hairy Legume 14 G-J 15 H-J 15 F-I 12 J-P 23 H-M 20 H-Q 24 D-F 26 F-P
Patagonia Inta Vetch, Hairy Legume 14 G-J 13 I-M 15 F-I 15 H-M 23 H-M 17 L-R 23 E-G 30 E-L
Purple Bounty Vetch, Hairy Legume 16 E-G 16 G-I 18 D-G 15 H-K 26 F-J 19 I-R 26 DE 32 E-K
Villana Vetch, Hairy Legume 14 G-J 15 H-J 15 F-J 13 I-O 25 G-K 21 G-P 22 E-I 32 D-I
WinterKing Vetch, Hairy Legume 16 E-H 15 H-J 18 C-G 15 H-K 24 H-L 18 K-R 24 E-G 31 E-L
Namoi Vetch, Woolypod Legume 14 G-K 13 I-M 13 I-M 15 H-L 21 I-P 18 K-R 21 E-J 25 F-P
Double OO Winter Pea Legume 10 M-P 7 N-S 10 K-P 12 J-P 30 EF 28 D-H 26 DE 36 C-E
Survivor Winter Pea Legume 13 G-K 15 H-J 12 I-N 14 H-N 26 F-H 22 F-N 23 E-G 34 D-G
VNS (1) Winter Pea Legume 13 H-M 13 I-M 17 E-H 9 J-S 27 E-H 25 D-L 26 DE 29 E-M
VNS (2) Winter Pea Legume 13 G-L 14 H-L 11 J-N 15 H-L 29 E-G 21 G-P 24 EF 41 B-D
Windham Winter Pea Legume 7 O-S 5 O-T 9 L-Q 8 L-T 18 N-R 21 G-Q 14 K-N 20 N-S
WyoWinter (1) Winter Pea Legume 11 J-N 11 J-N 11 I-N 12 J-O 26 F-J 24 F-M 23 E-G 30 E-M
WyoWinter (2) Winter Pea Legume 14 G-K 15 H-J 15 F-I 11 J-Q 26 F-H 23 F-M 27 DE 30 E-M
Average 8.8 8.3 10 9 20 19 18 22
Min 1.9 1 1 1 6 4 1 6
Max 16.4 16.3 18 15 30 28 27 41
Range 14.4 15.3 17 14 24 24 26 35
† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation was performed across all entries. Varieties within the “A group” were top performers across all entries and mean separation letters of these entries are highlighted in dark orange.
For ease of viewing, the table is broken into functional groups (brassicas, cereals, legumes). Mean values for top performers within each functional group are highlighted in light orange (50th – 75th percentile) and dark orange (> 75th percentile).
Table 15-d. Summary statistics for location comparison of mean biomass of 60 cover crop varieties evaluated in small plot replicated trials at three University of Tennessee AgResearch and Education Center locations in Tennessee during 2019-2020.
Group Height (in)
Apr May
Avg. RECM MTREC ETREC Avg. RECM MTREC ETREC
Brassicas
Average 19 22.7 3 31 17 24 1 27
Min 20.7 22 6 34 20 26 4 29
Max 24.6 26 5 43 23 28 11 30
Range 21 21.7 17 24 24 27 7 37
Cereals
Average 12.6 10.7 11 16 30 33 24 33
Min 10.4 9.7 9 13 19 22 16 21
Max 16.2 14 14 20 26 24 22 32
Range 15.8 16 17 14 26 29 24 26
Legumes
Average 8.8 8.3 10 9 20 19 18 22
Min 1.9 1 1 1 6 4 1 6
Max 16.4 16.3 18 15 30 28 27 41
Range 14.4 15.3 17 14 24 24 26 35
Across Groups
Average 13 12.2 11 16 26 27 21 30
Standard Error 0.1 0.3 2 5 0 1 2 3
Min 1.9 1 1 1 6 4 1 6
Max 35.8 35.7 26 49 60 64 55 64
Range 33.9 34.7 24 48 54 60 54 58
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