Table 32. Yields and disease ratings of 10 Maturity Group V Early (5.0-5.5) Roundup Ready soybean varieties in five 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 6 County Tests  Summary from Small Plot Research        
Research and Education Center at Milan (RECM)On-farm Location in Jackson (JAX)
RECM – YLDOther DiseasesJAX – YLDOther Diseases
MSVarietyAvg. Yield (bu/ac)*TreatedNon-treatedFrogeye leaf spotTarget SpotRECM*TreatedNon-treatedFrogeye leaf spotTarget SpotRECM
AAsgrow 55X765.558.450.0MODLOW55.751.0MODLOW
ABAgriGold G5000RX62.554.751.2MODLOW59.858.3MODLOWCLB
ABCProgeny 5016RXS61.051.347.5LOWLOW59.355.8MODLOWCLB
ABCArmor 53-D0460.355.450.0LOWLOWCLB56.152.0LOWLOWCLB
ABCDAsgrow 54X658.046.048.8LOWLOW53.049.8LOWLOWCLB
BCDAsgrow 53X655.951.248.1LOWLOW56.252.7LOWLOW
CDGoSoy 54G1654.943.341.2LOWLOWCLB
DCroplan RX5136 S52.757.349.2LOWLOWCLB56.852.4LOWLOWCLB
DNK 52-Y7X52.251.348.0MODHIGH43.437.7HIGHHIGHSC
DProgeny 5157RXS52.253.446.2LOWLOWCLB55.151.3LOWLOWCLB
  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: Dyer, Gibson, Hamblen, Haywood, Madison *Treated plots sprayed with Quadris TOP @ 8 oz./Acre + 1% Induce @ R3 growth stage. RECM varieties planted June 1 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 – 17% with an average of 4% and Target spot ranged from 0 – 30% with an average of 4%. Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 54% with an average of 11% and Target spot ranged from 0 – 24 with an average of 3%. 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.  

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