Table 13. Early Oct. Planted, Spring Hill, TN, Cover and Height

Table 13. 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 Middle Tennessee AgResearch and Education Center, in Spring Hill, 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	68	A-D	35	I-M	93	A-E	100	10	AB	7	BC	37	AB	63	A-D
Elbon	Cereal Rye	66	A-F	32	K-O	88	B-G	100	9	B-D	5	C-F	26	DE	56	DE
NF95319B	Cereal Rye	59	A-H	35	I-M	95	A-D	100	9	B-D	6	B-D	32	BC	60	B-E
NF97325	Cereal Rye	59	A-H	32	K-O	97	A-C	100	9	C-F	7	BC	33	A-C	57	C-E
NF99362	Cereal Rye	48	E-N	27	M-Q	92	A-F	100	8	D-F	5	D-F	28	CD	54	E
TriCal Ray	Cereal Rye	68	A-E	37	H-M	93	A-E	100	10	A-C	7	BC	34	AB	58	B-E
Yankee	Cereal Rye	58	A-I	32	K-O	85	D-I	100	9	B-D	5	E-G	15	J-N	34	G-J
TriCal EXP 20T06	Triticale	67	A-F	43	E-L	88	B-G	100	10	AB	7	B	23	D-G	39	FG
TriCal EXP 21T01	Triticale	78	A	51	D-H	87	C-H	100	11	A	9	A	22	E-H	35	F-I
TriCal Flex 719	Triticale	65	A-F	38	F-M	65	K-M	87	9	C-F	6	B-F	17	I-M	31	H-K
TriCal Surge	Triticale	53	B-K	34	I-N	80	F-K	100	10	A-D	7	B	18	F-K	30	I-L
TN1902	Wheat	49	D-M	30	L-P	78	G-K	90	7	F-H	5	E-G	15	J-N	25	K-O
Legumes
FIXatioN	Clover, Balansa	28	N-P	13	QR	38	N-P	78	3	J	3	H	9	O-U	19	O-R
Paradana	Clover, Balansa	28	N-P	13	QR	32	OP	53	3	J	3	H	12	L-T	12	R-T
Taipan	Clover, Balansa	16	P	11	R	13	P	48	3	J	3	H	8	Q-U	13	R-T
Viper	Clover, Balansa	22	OP	14	QR	48	M-O	82	3	J	3	H	12	M-S	20	N-Q
Frosty	Clover, Berseem	40	H-O	38	G-M	93	A-E	100	3	J	3	H	13	L-Q	21	M-Q
Lightning	Clover, Berseem	36	J-P	34	J-N	92	A-E	100	3	J	3	H	12	M-S	22	M-P
*UF_CC_17	Clover, Crimson	53	B-K	51	D-H	83	E-J	97	3	J	3	H	14	K-Q	24	L-P
Dixie	Clover, Crimson	40	H-O	46	E-K	92	A-E	100	3	J	3	H	11	N-U	26	K-N
Kentucky Pride	Clover, Crimson	52	B-L	47	D-J	90	A-G	100	3	J	3	H	12	M-S	25	K-O
GO-PER-12	Clover, Persian	30	M-P	15	QR	17	P	38	3	J	3	H	6	S-U	13	RS
Dynamite	Clover, Red	33	K-P	18	O-R	57	L-N	85	3	J	3	H	9	P-U	18	P-R
Q (FL24D)	Clover, Red	37	J-O	14	QR	15	P	65	3	J	3	H	7	R-U	15	Q-S
*UF_WC_LateOcoee	Clover, White	24	OP	11	R	5	P	35	3	J	3	H	4	U	6	T
*UF_WC_ML17	Clover, White	30	M-P	16	P-R	27	OP	50	3	J	3	H	6	TU	10	ST
AU Merit	Vetch, Hairy	62	A-G	61	B-D	88	B-G	100	6	HI	6	B-F	12	L-R	26	K-N
Patagonia	Vetch, Hairy	69	A-C	75	AB	93	A-E	100	6	HI	6	B-F	15	J-O	23	L-P
WinterKing	Vetch, Hairy	62	A-G	56	C-E	98	AB	100	6	HI	6	B-E	14	J-P	25	K-O
Survivor	Winter Pea	77	A	79	A	87	B-G	100	6	G-I	5	E-G	17	H-M	28	J-M
Brassicas
Vivant	Hybrid (turnip x rapeseed)	47	F-N	20	N-R	70	H-L	87	6	HI	4	F-H	23	D-F	33	G-J
Aerifi	Radish	49	C-M	13	QR	37	N-P	67	6	I	3	H	14	J-O	21	N-Q
CCS-779	Radish	39	I-O	13	QR	23	P	42	6	I	3	H	15	J-N	21	N-Q
Driller	Radish	45	G-N	8	R	20	P	25	6	HI	3	H	14	J-Q	19	O-R
FragiBlaster	Radish	51	B-L	18	O-R	67	J-L	90	6	HI	3	H	17	G-L	26	K-N
Jackpot	Turnip	32	L-P	12	R	67	I-L	90	6	I	3	GH	24	D-F	37	F-H
Mixes
Bates RS4 (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	60	A-G	46	E-K	93	A-E	100	8	D-F	5	E-G	39	A	67	A
Bates RS4 (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	56	B-J	49	D-I	98	AB	100	9	B-E	6	B-E	39	A	65	AB
Bates RS4 (10%) + Dixie (90%)	Cereal Rye + Crimson Clover	60	A-H	51	D-G	98	AB	100	8	D-F	6	B-E	38	A	65	AB
Bates RS4 (10%) + AU Merit (90%)	Cereal Rye + Hairy Vetch	60	A-G	61	B-D	98	AB	100	10	A-C	6	B-D	37	AB	63	A-C
Yankee (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	59	A-H	34	I-N	97	A-C	100	8	E-G	5	D-F	17	G-L	41	F
Yankee (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	59	A-I	51	D-H	100	A	100	9	B-E	6	B-F	21	E-I	37	F-H
TN1902 (20%) + Dixie (80%)	Wheat + Crimson Clover	62	A-G	53	D-F	97	A-C	100	8	E-G	5	D-F	19	F-J	32	H-K
TN1902 (20%) + AU Merit (80%)	Wheat + Hairy Vetch	69	AB	67	A-C	100	A	100	9	B-E	6	B-E	19	F-K	31	H-K
Cereals
Average		61		36		87		98	9		6		25		45
Min		48		27		65		87	7		5		15		25
Max		78		51		97		100	11		9		37		63
Range		30		24		32		13	4		4		22		37
Legumes
Average		41		34		59		80	4		4		11		19
Min		16		11		5		35	3		3		4		6
Max		77		79		98		100	6		6		17		28
Range		61		68		93		65	3		3		13		21
Brassicas
Average		44		14		47		67	6		3		18		26
Min		32		8		20		25	6		3		14		19
Max		51		20		70		90	6		4		24		37
Range		19		12		50		65	0		1		10		18
Mixes
Average		61		52		98		100	9		6		29		50
Min		56		34		93		100	8		5		17		31
Max		69		67		100		100	10		6		39		67
Range		14		33		7		0	2		2		21		36
Across Groups
Average		51		35		72		87	6		5		19		33
Standard Error		16		19		30		22	3		2		10		17
Min		16		8		5		25	3		3		4		6
Max		78		79		100		100	11		9		39		67
Range		62		72		95		75	8		6		34		61
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 appropriate 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 13. Early Oct. Planted, Spring Hill, TN, Cover and Height

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