Table 14. 2018 MG-4E Liberty Link Disease Tests

Table 14. Yields and disease ratings of 12 Maturity Group IV Early (4.0-4.5) Liberty Link soybean varieties in 3 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2018

Summary from County TestsSummary from Small Plot Research
Average45.342.035.157.353.5
Research and Education Center at Milan (RECM)On-farm Location in Jackson (JAX)
RECM – YLDJAX – YLD
MSVarietyAvg. Yield (bu/ac)*TreatedNon-treatedFrogeye leaf spotTarget SpotOther Diseases*TreatedNon-treatedFrogeye leaf spotTarget Spot
ABayer CZ 360148.560.556.6MODLOW
AWarren Seed Micah 4400*48.347.940.8LOWLOWCLB58.449.1LOWLOW
AGoSoy 43L1648.141.133.3LOWLOWCLB53.754.9LOWLOW
ABBayer CZ 422247.838.532.8HIGHLOW60.351.7HIGHLOW
ABBayer CZ 3841*47.535.931.2MODLOWCLB58.258.4MODLOW
ABTerral REV 45L547.149.841.4MODLOWSDS57.155.6MODLOW
ABCProgeny 4247*46.4SDS59.357.6LOWLOW
ABCBayer CZ 454846.3SDS52.851.0LOWLOW
BCDBeck’s 424L442.338.931.9LOWMODCLB60.055.9LOWMOD
CDBayer CZ 410541.040.932.5LOWMODCLB58.754.2MODLOW
CDGoSoy 42L1640.954.748.1LOWLOW
DBayer CZ 430839.843.137.1LOWLOW54.448.4LOWLOW

YLD= Avg. Yield @ 15% 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: Dyer, Gibson, Madison

*Treated plots sprayed with Quadris TOP SBX @ 7 oz./Acre + 0.25% Induce @ R3 growth stage. RECM varieties planted June 5 and JAX planted June 14.

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 – 31% with an average of 6% and Target spot ranged from 0 – 2% with an average of 1%.

Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 56% with an average of 6% and Target spot ranged from 0 – 4% with an average of 1%.

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.

Virginia Sykes

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Virginia Sykes vsykes@utk.edu
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