Table 23. 2019 MG-4L Liberty Link Disease Tests

Table 23. Yields and disease ratings of 12 Maturity Group IV Late (4.6-4.9) Liberty Link soybean varieties in 6 County Standard Tests and in small plot trials at two Research and Education Center and one on-farm location in Tennessee during 2019

Summary from County TestsSummary from Small Plot Research       
Research & Education Center at Milan (RECM)West TN Research and Education Center (WTREC)On-farm Location in Jackson (JAX)
MSVarietyAvg. Yield (bu/ac)*TreatedNon-treatedFrogeye leaf spotTarget Spot*TreatedNon-treated*TreatedNon-treatedFrogeye leaf spotSDS
ALocal Seed ZS4694E3S65.840.342.0MODLOW20.219.154.844.2MODLOW
ABCredenz 4820 LL***62.637.844.8LOWHIGH21.220.547.439.5LOW
ABCredenz 4918 LL**62.239.839.8LOWLOW23.618.649.746.1LOW
ABStine 49LH0262.141.735.7LOWLOW19.319.647.045.7LOW
ABCGoSoy 462E1860.441.437.5LOWLOW17.521.447.042.6MODMOD
BCDGoSoy 512E1859.039.545.9LOWLOW23.019.940.037.0LOWHIGH
BCDGoSoy 46GL1858.543.638.8LOWLOW19.08.543.142.2LOWHIGH
BCDLocal Seed ZS4797E358.045.038.6LOWLOW23.019.841.737.1LOWHIGH
BCDGoSoy 482E1857.043.141.8MODLOW17.417.941.641.7MODMOD
BCDGoSoy 463E1956.940.738.8HIGHLOW20.121.345.236.1HIGHHIGH
CDGoSoy 491E19S54.140.040.7MODLOW20.822.840.738.2MODHIGH
DGoSoy 471E19S52.844.544.2LOWLOW22.215.636.534.4LOWHIGH

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.  


*Treated plots sprayed with Quadris TOP SBX @ 7 oz./Acre + 0.25% Induce @ R3 growth stage.

RECM varieties planted May 28, sprayed Aug 19, and harvested Oct 23.

JAX varieties planted May 21, sprayed Aug 8, and harvested Oct 3.

WTREC varieties planted after wheat June 17, sprayed Aug 28, and harvested Nov 6.

LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Other diseases noted: SDS=Sudden Death Syndrome;  ‘ – ‘ indicate variety was not tested at that location  


Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 28% with an average of 4%; Target spot ranged from 0 – 20% with an average of 2%.

Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 16% with an average of 2%; Sudden Death Syndrome disease index ranged from 0 – 21 with an average of 6 disease index.

Disease ratings at WTREC: Disease pressure was too low (<5%) at this location to take ratings, some yield data were affected by sandy soils and the majority of those data points were discarded.


Disease ratings & yield data compiled by Dr. Heather Kelly from replicated plots at the Research and Education Center at Milan, the West Tennessee Research and Education Center, and on-farm location in Jackson.

County data provided by Ryan Blair, Ext. Area Specialist, and the extension agents.

Virginia Sykes
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