|Summary from 18 County Tests||Summary from Small Plot Research|
|RECM - Moderate Disease Presssure||JAX - Severe Disease Pressure||WTREC - After Wheat (Low-Mod Disease Pressure)|
|MS||Brand/Variety||AvgYld bu/a||RECM - YLD *Treated||RECM - YLD Non-treated||Frogeye leaf spot||Brown spot||Target spot||Other Diseases||JAX - YLD *Treated||JAX - YLD Non-treated||Frogeye leaf spot||Brown spot||Target spot||Other Diseases||WTREC - YLD *Treated||WTREC - YLD Non-treated||Frogeye leaf spot||Brown spot||Target spot||Other Diseases|
|AB||***Warren Seed DS4633||59.8||53.3||46.4||LOW||HIGH||MOD||CLB||49.8||45.0||LOW||HIGH||HIGH||57.5||56.5||LOW||HIGH||MOD|
|EF||Bayer CZ 4959||54.6||47.7||41.3||MOD||MOD||LOW||46.4||43.5||HIGH||HIGH||LOW||51.2||50.1||HIGH||MOD||MOD|
|EFG||Croplan R2C 4700S||54.1||53.1||40.8||HIGH||MOD||HIGH||45.9||36.8||HIGH||HIGH||LOW||64.3||52.3||HIGH||MOD||HIGH|
|GHIJ||Warren Seed 4850||51.1||50.0||41.1||MOD||HIGH||HIGH||CLB||-||-||-||-||-||-||-||-||-||-||-|
|HIJ||Bayer CZ 4656||50.8||45.8||39.3||MOD||MOD||MOD||34.1||24.3||HIGH||LOW||HIGH||51.9||50.1||LOW||MOD||LOW|
|J||Bayer CZ 4898||48.7||46.5||37.8||MOD||MOD||HIGH||34.2||27.2||HIGH||†||HIGH||53.8||49.1||LOW||MOD||LOW|
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: Benton, Crockett, Decatur, Dyer, Fayette, Franklin, Gibson, Giles, Haywood, Henry, Loudon, Madison, Marion, Montgomery, Obion, Tipton, Weakley, McCracken (KY)
*Treated plots sprayed with Quadris TOP @ 8 oz./Acre + 1% Induce @ R3-R4 growth stage. RECM varieties planted June 1, JAX planted May 23, and WTREC planted June 13 after wheat.
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 † indicates ratings not able to be taken
Disease ratings at RECM: Frogeye leaf spot ranged from 38 – 53% with an average of 45%; Brown spot ranged from 20 – 40% with an average of 26%; and Target spot ranged from 0 – 14% with an average of 4%.
Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 59% with an average of 14%; Brown spot ranged from 20 – 63% with an average of 49%; and Target spot ranged from 0 – 15% with an average of 3%.
Disease ratings at WTREC: Frogeye leaf spot ranged from 0 – 15% with an average of 3%; Brown spot ranged from 14 – 31% with an average of 23%; and Target spot ranged from 0 – 18% 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 (RECM, which is irrigated and had moderate disease pressure), on-farm location in Jackson (JAX, which is dry land and had severe disease pressure), and the West Tennessee Research and Education Center (WTREC, which was planted after wheat, is dry land and had low to moderated disease pressure due to regular crop rotation). County data provided by Ryan Blair, Ext. Area Specialist, and the extension agents.
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- Table 7.Overall average yields and moistures of three Maturity Group III (3.0 – 3.9) Roundup Ready soybean varieties evaluated in County Standard Tests (n=8) and REC Tests (n=5) in Tennessee during 2016. - April 5, 2017
- Table 8.Yields and disease ratings of 6Maturity Group III Roundup Ready soybean varieties in 8 County Standard Tests and in small plot trials at one Research and Education Center and one on-farm location in Tennessee during 2016 - April 5, 2017