Table 9. 2020 MG-3 Roundup Ready Disease Tests

Table 9. Yields and disease ratings of 8 Maturity Group III Roundup Ready soybean varieties in 4 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2020
VarietyHerbicide Pkg† Avg. Yield§
(bu/ac)
     Maturity
(DAP)
     Protein¶
(%)
     Oil¶
(%)
     
1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr1 yr2 yr3 yr
HybridHerbicide Pkg†Avg. Yield§
(bu/ac)
1 yr
MS
Avg. Yield§
1 yr
Avg. Yield§
(bu/ac)
2 yr
MS
Avg. Yield§
2 yr
Avg. Yield§
(bu/ac)
3 yr
MS
Avg. Yield§
3 yr
Maturity
(DAP)
1 yr
MS
Maturity
1 yr
Maturity
(DAP)
2 yr
MS
Maturity
2 yr
Maturity
(DAP)
3 yr
MS
Maturity
3 yr
Protein¶
(%)
1 yr
MS
Protein¶
1 yr
Protein¶
(%)
2 yr
MS
Protein¶
2 yr
Protein¶
(%)
3 yr
MS
Protein¶
3 yr
Oil¶
(%)
1 yr
MS
Oil¶
1 yr
Oil¶
(%)
2 yr
MS
Oil¶
2 yr
Oil¶
(%)
3 yr
MS
Oil¶
3 yr
Local Seed Co. LS4565XS**R2X, STSS1803367.3A62.8AB61.6A138AB133AB133A40.3C-G39.6AB39.8A21.5S22.0E21.9B
AgriGold G4190RX**R2XS1809166.0AB64.1A61.9A131M127F126B41.1B39.5AB39.9A22.3N-Q22.9CD22.7A
Dyna-Gro S45ES10E3S2005465.4A-C138AB38.5N-P22.6I-N
Dyna-Gro S41XS98***R2X, STSS1703665.2A-D62.2A-C62.2A131LM128F127B40.6B-D39.5AB39.9A22.5K-P22.9CD22.7A
LG Seeds LGS4227RXR2X, STSS1705364.9A-D62.2A-C132K-M128F40.9BC39.7A22.3N-Q22.9CD
Progeny P4505RXSR2X, STSS2006664.5A-E137B-D38.5N-P23.0D-I
Croplan CP4150XSR2XS2006264.4A-E134F-J40.3B-E22.6K-P
USG 7447XTS**R2X, STSS1808163.4A-F138AB40.1D-I21.8RS
AgriGold G4255RXR2XS1901163.1B-G60.4B-D134E-G130E40.2D-H39.2AB22.5K-P23.1BC
Croplan CP4520XSR2XS2006362.6B-H139A39.3J-M22.4M-Q
Asgrow AG43X0R2XS2003762.4B-I137A-C39.2K-N22.6K-P
Mission Seed A4448XR2X, STSS2000261.9C-I133G-K39.4I-M22.8H-M
Dyna-Gro S45XS37R2X, STSS1703861.8C-I60.5B-D59.9A138AB133A133A39.8E-L39.0B39.4A21.6S22.1E21.9B
AgriGold G4318RXR2XS2008261.7C-I133H-L39.6E-L22.6J-O
DONMARIO Seeds DM 45X61R2XS2007861.7C-I138AB37.6QR23.3B-E
LG Seeds LGS4464RXR2X, STSS2003861.5C-I132I-M40.3C-F22.6K-P
NK Seed S44C7XR2XS1906661.3D-J59.3DE138AB132BC38.3O-Q37.2C23.6AB24.1A
Dyna-Gro S43XS70R2X, STSS1907261.3D-J58.0D-F135E-G131DE40.1D-I39.2AB22.4L-P23.1C
Progeny 4444RXSR2X, STSS1707560.8E-K135D-F39.2K-N22.8G-L
Progeny P4265RXSR2X, STSS1900159.9F-L57.8EF134F-H130E40.2C-G39.3AB22.3N-Q22.9CD
USG 7431ETE3, STSS2005759.9F-L135EF38.7M-O23.4B-D
Local Seed Co. LS4299XSR2X, STSS1905159.7F-M59.7C-E134F-I130E40.2D-H39.5AB22.3O-Q22.7D
Dyna-Gro S43EN61E3S2005359.1G-N136C-E37.8P-R23.9A
Credenz CZ 4410 GTLLRR, LLS2002658.9H-N134F-H37.5R23.2B-G
AGS GS42X19SR2X, STSS2004358.5I-N134F-H39.0L-O23.2B-F
Credenz CZ 4570 XR2XS2002757.3J-N138AB39.9D-J23.1C-H
Credenz CZ 4240 GTLLRR, LLS2002457.1K-N134F-J40.1D-I22.2PQ
Armor A44-D92R2XS1900756.7L-N55.5F134F-I130E39.4H-L39.2AB22.6K-P23.0C
Local Seed Co. LS4407XR2XS1905255.9L-O56.3F138A132A-C39.8E-K39.0B22.9F-K23.3B
Progeny P4241E3E3S2006955.7M-O135E-G39.5G-L22.5K-P
Credenz CZ 4280 XR2XS2002555.4NO132J-M38.5N-P23.4BC
GoSoy 43C17SSTSS1802252.2OP129N39.1K-N23.0E-J
Credenz CZ 4539 GTLLRR, LLS1904651.3P52.2G138AB132CD40.1D-H39.7AB22.7I-N23.0C
TN Exp TN17-4507R2RRS2001250.8P138AB39.6F-L22.0QR
TN Exp TN18-4007Conv.S2001448.6P134E-G44.5A20.8T
Average59.959.361.413513012939.639.239.722.622.922.3
Standard Error4.84.84.53540.30.90.70.10.50.3
L.S.D..054.12.7N.S.2110.70.7N.S.0.40.30.2
C.V.121010222122111
Plots per entry (reps x locs x years.)214245183645369369
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 July 29, and harvested Oct 5. JAX varieteis planted June 2, sprayed July 29, and harvested Oct 1.   LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Other diseases noted: SC=Stem Canker; ‘ – ‘ indicate variety was not tested at that location Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 13% with an average of 5%;  Target spot ranged from 0 – 21% with an average of 10%. Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 6% with an average of 2%; Target spot ranged from 0 – 17% with an average of 8%;   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.  
Virginia Sykes
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