Table 9. Early Oct. Planted, Knoxville, TN, Cover and Height

Table 9. By location mean cover and height of 36 cover crop varieties and 8 mixes planted in early Oct. 2020, in small plot replicated trials, at the East Tennessee AgResearch and Education Center, in Knoxville, Tennessee, and evaluated from Fall 2020 to Spring 2021.

Variety	Common Name	Canopy Cover (%)							Height (in)
		Dec		Feb		Apr§		May‡‡	Dec		Feb		Apr		May
Cereals
Bates RS4	Cereal Rye	86	A-D	72	A-F	100	A	100	11	BC	8	BC	50	AB	66	A
Elbon	Cereal Rye	78	A-H	57	G-S	100	A	100	9	D-F	5	D-F	34	FG	66	A
NF95319B	Cereal Rye	89	AB	74	A-D	100	A	100	12	A	8	B	52	AB	67	A
NF97325	Cereal Rye	85	A-E	74	A-C	100	A	100	10	B-E	7	BC	50	AB	65	A
NF99362	Cereal Rye	80	A-G	62	B-P	100	A	100	10	B-E	6	DE	38	EF	65	A
TriCal Ray	Cereal Rye	87	A-C	70	A-I	100	A	100	11	BC	8	B	50	AB	64	A
Yankee	Cereal Rye	89	AB	66	A-K	100	A	100	10	C-E	6	DE	18	K-M	51	B
TriCal EXP 20T06	Triticale	92	A	76	AB	100	A	100	11	AB	10	A	29	G-I	45	B-D
TriCal EXP 21T01	Triticale	83	A-F	70	A-H	100	A	100	11	BC	11	A	25	IJ	39	D-F
TriCal Flex 719	Triticale	80	A-G	60	C-Q	100	A	100	9	E-G	4	E-H	19	JK	33	F-I
TriCal Surge	Triticale	72	A-K	62	B-O	100	A	100	11	BC	7	B-D	21	JK	41	C-E
TN1902	Wheat	74	A-I	68	A-J	100	A	100	10	B-E	5	E-G	18	KL	34	F-H
Legumes
FIXatioN	Clover, Balansa	62	G-M	47	Q-S	100	A	100	3	M	3	H	7	R-V	21	M-Q
Paradana	Clover, Balansa	53	K-M	45	R-T	100	A	100	3	M	3	H	6	T-V	14	Q-S
Taipan	Clover, Balansa	43	M	47	Q-S	100	A	100	3	M	3	H	7	R-V	15	P-S
Viper	Clover, Balansa	47	LM	54	J-S	100	A	100	3	M	3	H	8	Q-V	15	P-S
Frosty	Clover, Berseem	58	H-M	58	F-R	100	A	100	3	M	3	GH	12	N-S	24	K-N
Lightning	Clover, Berseem	59	H-M	51	M-S	100	A	100	3	M	3	GH	12	O-T	23	K-N
*UF_CC_17	Clover, Crimson	59	H-M	48	O-S	100	A	100	3	M	3	H	7	R-V	17	N-Q
Dixie	Clover, Crimson	65	E-L	55	I-S	100	A	100	3	M	3	H	7	S-V	22	L-O
Kentucky Pride	Clover, Crimson	63	F-M	59	E-R	100	A	100	3	M	3	H	7	R-V	21	M-Q
GO-PER-12	Clover, Persian	57	I-M	59	D-R	100	A	100	3	M	3	H	10	P-U	18	N-Q
Dynamite	Clover, Red	58	I-M	52	K-S	100	A	100	3	M	3	H	8	R-V	18	N-Q
Q (FL24D)	Clover, Red	53	J-M	52	L-S	100	A	100	3	M	3	GH	7	S-V	16	O-R
*UF_WC_LateOcoee	Clover, White	58	I-M	47	P-S	100	A	100	3	M	3	H	5	UV	9	S
*UF_WC_ML17	Clover, White	44	M	43	ST	100	A	100	3	M	3	H	5	V	10	RS
AU Merit	Vetch, Hairy	73	A-J	66	A-L	100	A	100	5	KL	3	GH	12	O-T	27	H-M
Patagonia	Vetch, Hairy	65	E-L	65	B-M	100	A	100	4	LM	4	F-H	12	M-R	26	I-M
WinterKing	Vetch, Hairy	78	A-H	67	A-J	100	A	100	6	I-K	5	D-F	16	K-P	25	J-M
Survivor	Winter Pea	84	A-E	71	A-H	100	A	100	6	J-L	3	GH	14	L-Q	30	G-K
Brassicas
Vivant	Hybrid (turnip x rapeseed)	70	B-K	46	RS	100	A	100	6	I-K	5	E-G	32	GH	41	C-E
Aerifi	Radish	74	A-I	60	C-Q	100	A	100	8	F-H	6	CD	28	HI	22	L-P
CCS-779	Radish	66	D-L	62	B-N	100	A	100	7	G-I	8	BC	33	F-H	35	E-G
Driller	Radish	81	A-G	60	C-R	100	A	100	9	D-F	6	CD	28	HI	28	G-L
FragiBlaster	Radish	77	A-I	50	N-S	100	A	100	7	G-I	6	DE	32	GH	31	G-J
Jackpot	Turnip	50	LM	31	T	100	A	100	6	I-K	5	D-F	29	G-I	42	CD
Mixes
Bates RS4 (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	89	AB	80	A	100	A	100	10	B-D	7	B-D	53	A	67	A
Bates RS4 (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	82	A-F	75	AB	100	A	100	11	A-C	6	CD	47	BC	66	A
Bates RS4 (10%) + Dixie (90%)	Cereal Rye + Crimson Clover	73	A-K	68	A-I	100	A	100	9	E-G	6	DE	44	CD	64	A
Bates RS4 (10%) + AU Merit (90%)	Cereal Rye + Hairy Vetch	82	A-F	72	A-G	100	A	100	7	G-I	5	D-F	41	DE	67	A
Yankee (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	76	A-I	56	H-S	100	A	100	8	F-H	3	H	16	K-O	44	CD
Yankee (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	83	A-F	70	A-H	100	A	100	9	E-G	4	GH	16	K-P	47	BC
TN1902 (20%) + Dixie (80%)	Wheat + Crimson Clover	71	B-K	73	A-E	100	A	100	7	H-J	3	H	18	KL	30	G-K
TN1902 (20%) + AU Merit (80%)	Wheat + Hairy Vetch	67	C-L	60	C-Q	100	A	100	7	G-I	6	DE	17	K-N	29	G-K
Cereals
Average		83		68		100		100	10		7		34		53
Min		72		57		100		100	9		4		18		33
Max		92		76		100		100	12		11		52		67
Range		20		19		0		0	4		6		34		35
Legumes
Average		60		55		100		100	4		3		9		20
Min		43		43		100		100	3		3		5		9
Max		84		71		100		100	6		5		16		30
Range		41		27		0		0	3		2		11		21
Brassicas
Average		70		52		100		100	7		6		30		33
Min		50		31		100		100	6		5		28		22
Max		81		62		100		100	9		8		33		42
Range		31		31		0		0	3		3		5		20
Mixes
Average		78		69		100		100	9		5		31		52
Min		67		56		100		100	7		3		16		29
Max		89		80		100		100	11		7		53		67
Range		23		24		0		0	4		4		37		38
Across Groups
Average		71		60		100		100	7		5		23		36
Standard Error		13		11		0		0	3		2		15		19
Min		43		31		100		100	3		3		5		9
Max		92		80		100		100	12		11		53		67
Range		49		49		0		0	9		8		48		58
ANOVA p-values
– Variety		<0.001		<0.001		<0.001		–	<0.001		<0.001		<0.001		<0.001
– Location		<0.001		<0.001		<0.001		–	0.003		0.003		<0.001		<0.001
– Variety x Location		N.S.		<0.001		<0.001		–	<0.001		<0.001		<0.001		<0.001

† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation letters are highlighted in dark orange for values that are not statistically different from the highest value across all entries within a given trait. Mean values between the 50th and 75th percentile are highlighted in light orange, mean values above the 75th percentile are highlighted in dark orange. § For analysis, values transformed using (value)^2 due to non-normal distribution. Untransformed means and summary statistics are reported. ‡ For analysis, values transformed using log (value+1) due to non-normal distribution. Untransformed means and summary statistics are reported. ‡‡ Non-normal distribution, means reported ¶ Analyzed using near infrared spectroscopy (NIRS) with the appropraite calibration for each species. Reported on a 100% DM basis. †† Estimated using quality constituents from NIRS inputted into the UGA cover crop nitrogen calculator.

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Virginia Sykes

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Table 9. Early Oct. Planted, Knoxville, TN, Cover and Height

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