Table 5. 2021 MG-3 Yield, Agronomic, and Quality Data across REC Locations (1yr, 2yr, 3yr)

Table 5-a. Mean† yield and agronomic traits of 7 Maturity Group III (3.0 – 3.9) soybean varieties evaluated in small plot replicated trials at eight AgResearch and Education Center locations in Tennessee during 2021. Analysis included variety performance over 1 yr (2021) period. All MG-3 varieties evaluated this year were new; therefore, 2 yr and 3 yr analysis are not presented.

Variety	Herbicide Pkg†		Avg. Yield§ (bu/ac) 1 yr		Moisture at Harvest (%) 1 yr		Plant Height (in.) 1 yr		Lodging‖ (1-5) 1 yr		Maturity (DAP) 1 yr		Protein¶ (%) 1 yr		Oil¶ (%) 1 yr
USG 7392XFS	XF, STS	S21053	66	A	14	AB	35	A	1.2	B	133	AB	36.8	A	21.9	E
Armor A39-F73	XF	S21049	65	AB	14	AB	34	A	1.6	A	134	A	36.0	B	22.6	C
Local Seed Co. LS3908XFS	XF, STS	S21036	61	B	14	AB	35	A	1.3	AB	134	AB	36.8	A	22.2	DE
Asgrow AG38XF1	XF	S21003	57	C	13	BC	32	BC	1.1	B	132	B	36.1	B	22.5	CD
Asgrow AG37XF1	XF	S21002	57	CD	14	AB	33	B	1.0	B	131	C	36.0	B	23.4	B
Asgrow AG36XF1	XF	S21001	54	CD	14	A	32	BC	1.6	A	130	C	35.7	B	23.3	B
NK Seed NK39-A1XF	XF	S21023	53	D	13	C	31	C	1.0	B	130	C	33.5	C	24.2	A
Average			59		13.6		33		1.3		132		33.0		22.9

Table 5-b. Mean† yield and quality of 7 Maturity Group III (3.0 – 3.9) soybean varieties evaluated in small plot replicated trials at eight AgResearch and Education Center locations in Tennessee during 2021. Sudden death syndrome (SDS) and Frogeye disease ratings were taken in mid-September. Seed quality and purple stain ratings were taken post-harvest.

Variety	Herbicide Pkg†		Avg. Yield§ (bu/ac) 1 yr		SDS†† DI (%) 1 yr		SDS†† DS (1-9) 1 yr		SDS†† DX (DI x DS/9) 1 yr		Frogeye‡‡ (1-9) 1 yr		Seed Quality§§ (1-5) 1 yr		Purple Stain¶¶ (1-5) 1 yr
USG 7392XFS	XF, STS	S21053	66	A	2.1	A	1.3	A	0.7	A	1.0	C	2.0	BC	2.2	AB
Armor A39-F73	XF	S21049	65	AB	1.7	A	1.0	A	0.6	A	1.2	C	2.7	A	2.3	A
Local Seed Co. LS3908XFS	XF, STS	S21036	61	B	3.0	A	1.7	A	1.0	A	1.0	C	1.8	C	1.8	BC
Asgrow AG38XF1	XF	S21003	57	C	0.8	A	0.4	A	0.2	A	1.3	BC	2.7	A	2.3	A
Asgrow AG37XF1	XF	S21002	57	CD	0.0	A	0.0	A	0.0	A	1.3	BC	2.8	A	2.0	AB
Asgrow AG36XF1	XF	S21001	54	CD	0.8	A	0.5	A	0.3	A	2.0	B	1.7	C	1.5	C
NK Seed NK39-A1XF	XF	S21023	53	D	0.0	A	0.0	A	0.0	A	3.8	A	2.5	AB	1.8	BC
Average			59		1.2		0.7		0.4		1.7		2.3		2.0

† Varieties that have any MS letter in common are not significantly different at the 5% level of probability. Values highlighted in light orange are above average for a given trait,
MS letters highlighted in dark orange are in the “A group”, indicating no statistical difference from the top-performing variety, for a given trait.
* Asterisks after a name indicate the number of preceding consecutive years in the top-performing “A” group.
‡ For a full description of abbreviated biotech traits, see table 31.
§ All yields are adjusted to 13% moisture.
†† SDS was evaluated as disease incidence (percentage), disease severity (1 to 9, with 1 indicating no disease), and disease index (DI x DS/9). All locations were evaluated,
but only Milan irrigated and Milan non-irrigated exhibited significant variation and are included in the analysis.
‡‡ Frogeye was evaluated using a 1 to 9 scale, with 1 indicating no disease. All locations were evaluated, but only Knoxville and Milan non-irrigated exhibited significant
variation and are included in the analysis.
§§ Seed quality was evaluated visually post-harvest using a 1 to 5 scale, with 1 indicating no shriveled or damaged seed. Trials were evaluated at the Knoxville location only.
¶¶ Purple stain was evaluated visually post-harvest using a 1 to 5 scale, with 1 indicating no purple stain. Trials were evaluated at the Knoxville location only