Table 16. 2020 MG-4E Liberty Link Disease Tests

Table 16. Yields and disease ratings of 4 Maturity Group IV Early (4.0-4.5) Liberty Link soybean varieties in 6 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2020

Summary from County Tests			Summary from Small Plot Research
		Avg.	Research & Education Center at Milan (RECM)				On-farm Location in Jackson (JAX)
		Yield	RECM – YLD		Frogeye	Target	JAX – YLD		Frogeye	Target
MS	Variety	(bu/ac)	*Treated	Non-treated	leaf spot	Spot	*Treated	Non-treated	leaf spot	Spot
A	Dyna-Gro S45EN10	65.5	44.2	38.1	LOW	LOW	49.6	52.6	LOW	LOW
B	Stine 41EA12	57.0	42.2	39.3	LOW	LOW	54.8	49.1	LOW	LOW
AB	Stine 45EB20	62.6	44.1	40.0	LOW	LOW	53.1	50.3	LOW	LOW
A	USG 7431ET	65.0	44.5	43.3	LOW	LOW	51.3	50.8	LOW	LOW
	Average	62.5	43.8	40.2			52.2	50.7

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.   *Treated plots sprayed with Quadris TOP SBX @ 7 oz./Acre + 0.25% Induce @ R3 growth stage. RECM varieties planted June 3, sprayed Aug 12,  and harvested Nov 3. JAX varieties planted June 2,  sprayed Aug 10, and harvested Oct 14.   LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 3% with an average of 0.7% and Target spot was not observed. Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 2% with an average of 0.6% and Target spot was not observed.   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.