Table 9. 2020 MG-3 Roundup Ready Disease Tests

Table 9. Yields and disease ratings of 8 Maturity Group III Roundup Ready soybean varieties in 4 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2020

Variety	Herbicide Pkg†		Avg. Yield§ (bu/ac)						Maturity (DAP)						Protein¶ (%)						Oil¶ (%)
			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†		Avg. Yield§ (bu/ac) 1 yr	MS Avg. Yield§ 1 yr	Avg. Yield§ (bu/ac) 2 yr	MS Avg. Yield§ 2 yr	Avg. Yield§ (bu/ac) 3 yr	MS Avg. Yield§ 3 yr	Maturity (DAP) 1 yr	MS Maturity 1 yr	Maturity (DAP) 2 yr	MS Maturity 2 yr	Maturity (DAP) 3 yr	MS Maturity 3 yr	Protein¶ (%) 1 yr	MS Protein¶ 1 yr	Protein¶ (%) 2 yr	MS Protein¶ 2 yr	Protein¶ (%) 3 yr	MS Protein¶ 3 yr	Oil¶ (%) 1 yr	MS Oil¶ 1 yr	Oil¶ (%) 2 yr	MS Oil¶ 2 yr	Oil¶ (%) 3 yr	MS Oil¶ 3 yr
Local Seed Co. LS4565XS**	R2X, STS	S18033	67.3	A	62.8	AB	61.6	A	138	AB	133	AB	133	A	40.3	C-G	39.6	AB	39.8	A	21.5	S	22.0	E	21.9	B
AgriGold G4190RX**	R2X	S18091	66.0	AB	64.1	A	61.9	A	131	M	127	F	126	B	41.1	B	39.5	AB	39.9	A	22.3	N-Q	22.9	CD	22.7	A
Dyna-Gro S45ES10	E3	S20054	65.4	A-C					138	AB					38.5	N-P					22.6	I-N
Dyna-Gro S41XS98***	R2X, STS	S17036	65.2	A-D	62.2	A-C	62.2	A	131	LM	128	F	127	B	40.6	B-D	39.5	AB	39.9	A	22.5	K-P	22.9	CD	22.7	A
LG Seeds LGS4227RX	R2X, STS	S17053	64.9	A-D	62.2	A-C			132	K-M	128	F			40.9	BC	39.7	A			22.3	N-Q	22.9	CD
Progeny P4505RXS	R2X, STS	S20066	64.5	A-E					137	B-D					38.5	N-P					23.0	D-I
Croplan CP4150XS	R2X	S20062	64.4	A-E					134	F-J					40.3	B-E					22.6	K-P
USG 7447XTS**	R2X, STS	S18081	63.4	A-F					138	AB					40.1	D-I					21.8	RS
AgriGold G4255RX	R2X	S19011	63.1	B-G	60.4	B-D			134	E-G	130	E			40.2	D-H	39.2	AB			22.5	K-P	23.1	BC
Croplan CP4520XS	R2X	S20063	62.6	B-H					139	A					39.3	J-M					22.4	M-Q
Asgrow AG43X0	R2X	S20037	62.4	B-I					137	A-C					39.2	K-N					22.6	K-P
Mission Seed A4448X	R2X, STS	S20002	61.9	C-I					133	G-K					39.4	I-M					22.8	H-M
Dyna-Gro S45XS37	R2X, STS	S17038	61.8	C-I	60.5	B-D	59.9	A	138	AB	133	A	133	A	39.8	E-L	39.0	B	39.4	A	21.6	S	22.1	E	21.9	B
AgriGold G4318RX	R2X	S20082	61.7	C-I					133	H-L					39.6	E-L					22.6	J-O
DONMARIO Seeds DM 45X61	R2X	S20078	61.7	C-I					138	AB					37.6	QR					23.3	B-E
LG Seeds LGS4464RX	R2X, STS	S20038	61.5	C-I					132	I-M					40.3	C-F					22.6	K-P
NK Seed S44C7X	R2X	S19066	61.3	D-J	59.3	DE			138	AB	132	BC			38.3	O-Q	37.2	C			23.6	AB	24.1	A
Dyna-Gro S43XS70	R2X, STS	S19072	61.3	D-J	58.0	D-F			135	E-G	131	DE			40.1	D-I	39.2	AB			22.4	L-P	23.1	C
Progeny 4444RXS	R2X, STS	S17075	60.8	E-K					135	D-F					39.2	K-N					22.8	G-L
Progeny P4265RXS	R2X, STS	S19001	59.9	F-L	57.8	EF			134	F-H	130	E			40.2	C-G	39.3	AB			22.3	N-Q	22.9	CD
USG 7431ET	E3, STS	S20057	59.9	F-L					135	EF					38.7	M-O					23.4	B-D
Local Seed Co. LS4299XS	R2X, STS	S19051	59.7	F-M	59.7	C-E			134	F-I	130	E			40.2	D-H	39.5	AB			22.3	O-Q	22.7	D
Dyna-Gro S43EN61	E3	S20053	59.1	G-N					136	C-E					37.8	P-R					23.9	A
Credenz CZ 4410 GTLL	RR, LL	S20026	58.9	H-N					134	F-H					37.5	R					23.2	B-G
AGS GS42X19S	R2X, STS	S20043	58.5	I-N					134	F-H					39.0	L-O					23.2	B-F
Credenz CZ 4570 X	R2X	S20027	57.3	J-N					138	AB					39.9	D-J					23.1	C-H
Credenz CZ 4240 GTLL	RR, LL	S20024	57.1	K-N					134	F-J					40.1	D-I					22.2	PQ
Armor A44-D92	R2X	S19007	56.7	L-N	55.5	F			134	F-I	130	E			39.4	H-L	39.2	AB			22.6	K-P	23.0	C
Local Seed Co. LS4407X	R2X	S19052	55.9	L-O	56.3	F			138	A	132	A-C			39.8	E-K	39.0	B			22.9	F-K	23.3	B
Progeny P4241E3	E3	S20069	55.7	M-O					135	E-G					39.5	G-L					22.5	K-P
Credenz CZ 4280 X	R2X	S20025	55.4	NO					132	J-M					38.5	N-P					23.4	BC
GoSoy 43C17S	STS	S18022	52.2	OP					129	N					39.1	K-N					23.0	E-J
Credenz CZ 4539 GTLL	RR, LL	S19046	51.3	P	52.2	G			138	AB	132	CD			40.1	D-H	39.7	AB			22.7	I-N	23.0	C
TN Exp TN17-4507R2	RR	S20012	50.8	P					138	AB					39.6	F-L					22.0	QR
TN Exp TN18-4007	Conv.	S20014	48.6	P					134	E-G					44.5	A					20.8	T
Average			59.9		59.3		61.4		135		130		129		39.6		39.2		39.7		22.6		22.9		22.3
Standard Error			4.8		4.8		4.5		3		5		4		0.3		0.9		0.7		0.1		0.5		0.3
L.S.D..05			4.1		2.7		N.S.		2		1		1		0.7		0.7		N.S.		0.4		0.3		0.2
C.V.			12		10		10		2		2		2		1		2		2		1		1		1
Plots per entry (reps x locs x years.)			21		42		45		18		36		45		3		6		9		3		6		9

YLD= Avg. Yield @ 13% moisture MS= Varieties that have any MS letter in common are not statistically different in yield at the 5% level of probability.   *Treated plots sprayed with Quadris TOP SBX @ 7 oz./Acre + 0.25% Induce @ R3 growth stage. RECM varieties planted June 3, sprayed July 29, and harvested Oct 5. JAX varieteis planted June 2, sprayed July 29, and harvested Oct 1.   LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Other diseases noted: SC=Stem Canker; ‘ – ‘ indicate variety was not tested at that location Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 13% with an average of 5%;  Target spot ranged from 0 – 21% with an average of 10%. Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 6% with an average of 2%; Target spot ranged from 0 – 17% with an average of 8%;   Disease ratings & yield data compiled by Dr. Heather Kelly & Alyson Horner from replicated plots at the Research and Education Center at Milan and on-farm location in Jackson. County data provided by Ryan Blair, Ext. Area Specialist, and the extension agents.