Table 7. Yields and disease ratings of eight Maturity Group III Roundup Ready soybean varieties in 10 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2017

Summary from 9 County Tests			Summary from Small Plot Research
			Research and Education Center at Milan (RECM)					On-farm Location in Jackson (JAX)
			RECM – YLD				Other Diseases	JAX – YLD
MS	Variety	Avg. Yield (bu/ac)	*Treated	Non-treated	Frogeye leaf spot	Target Spot	RECM	*Treated	Non-treated	Frogeye leaf spot	Target Spot
A	AgriGold G3520RX	67.9	55.3	51.9	MOD	MOD		48.1	45.9	MOD	HIGH
A	Asgrow 39X7	67.7	56.8	55.5	HIGH	MOD		55.9	52.5	HIGH	HIGH
A	Asgrow 36X6	67.6	56.4	51.7	MOD	MOD		49.7	50.7	MOD	HIGH
A	Asgrow 38X6	67.3	52.4	50.7	LOW	MOD		–	–	–	–
A	Dyna-Gro S39XT08	67.2	57.4	49.9	HIGH	MOD		54.6	49.9	MOD	MOD
A	NK S39-R9X	65.8	55.4	50.5	MOD	MOD	CLB	59.8	51.3	MOD	MOD
AB	Warren Seed DS 3838	64.8	58.2	54.2	MOD	LOW		–	–	–	–
B	Warren Seed BG 3810	61.9	47.1	44.3	LOW	MOD		47.1	47.9	LOW	MOD
	Average	66.3	54.9	51.1				52.5	49.7

  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. Varieties denoted with an asterisks (*) or (**) etc. were in the top performing group for consecutive years. County Locations include: Calloway KY, Coffee, Dyer, Fulton KY, Gibson, Hickman, Jefferson, Lake, Madison, Weakley *Treated plots sprayed with Quadris TOP SBX @ 7 oz./Acre + 0.25% Induce @ R3 growth stage. RECM varieties planted May 31 and JAX planted May 23 LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Other diseases noted: SC=Stem Canker, CLB=Cercospora Leaf Blight, SDS=Sudden Death Syndrome;  ‘ – ‘ indicate variety was not tested at that location Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 38% with an average of 13%;  Target spot ranged from 0 – 16% with an average of 11%. Disease ratings at JAX: Frogeye leaf spot ranged from 4 – 31% with an average of 18%; Target spot ranged from 15 – 25% with an average of 19%; other diseases were not rated or noted at this location for this maturity group Disease ratings & yield data compiled by Dr. Heather Kelly 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.