SOYBEAN VARIETY PERFORMANCE TESTS IN TENNESSEE

Transcription

1 SOYBEAN VARIETY PERFORMANCE TESTS IN TENNESSEE 2014 AGRESEARCH & EDUCATION CENTERS AND COUNTY STANDARD TESTS Fred L. Allen, Coordinator, Agronomic Crop Variety Testing & Demonstrations Virginia R. Sykes, Research Associate, Agronomic Crop Variety Testing & Demonstrations Robert C. Williams, Jr. Extension Area Specialist, Grain Crops Angela Thompson McClure, Extension Specialist, Corn & Soybeans Agronomic Crop Variety Testing and Demonstrations Department of Plant Sciences Institute of Agriculture University of Tennessee Knoxville Telephone: (865) FAX: (865) Variety test results are posted on UT s website at: and

2 Acknowledgments This research was funded by the Tennessee Agricultural Experiment Station and UT Extension with partial funding from participating companies and the Tennessee Soybean Promotion Board. We gratefully acknowledge the assistance of the following individuals in conducting these experiments: Dept. of Plant Sciences Vince Pantalone, Professor and Soybean Breeder Chris Smallwood, Research Associate, Soybean Breeding Eifion Hughes, Graduate Research Assistant Matthew Bobbitt, Graduate Research Assistant Victoria Benelli, Graduate Research Assistant Ali DeSantis, Graduate Research Assistant Amanda Ashworth, Research Associate, Agronomic Variety Testing Aleksandra Wilson, Research Assistant Douglas Renfro, Research Assistant AgResearch & Education Centers: East Tennessee: East Tennessee AgResearch & Education Center, Knoxville Robert Simpson, Center Director BJ DeLozier, Manager Derick Hopkins, Farm Crew Leader Middle Tennessee: Highland Rim AgResearch & Education Center, Springfield Barry Sims, Center Director Brad Fisher, Research Associate West Tennessee: AgResearch & Education Center at Milan, Milan Blake Brown, Center Director Jason Williams, Research Associate James McClure, Research Associate Chris Bridges, Research Associate AgResearch & Education Center at Ames Plantation, Grand Junction Rick Carlisle, Center Director Marshall Smith, Research Associate Jamie Evans, Research Associate

3 2014 County Standard Tests -- Soybean Cooperators & Agents Group IV Early Cooperator(s) Agent Dyer Mike Underwood Tim Campbell Fayette Ames Plantation Jeff Via Gibson Denton Parkins Philip Shelby Giles Richard Sulcer Kevin Rose Henry Wilson Farms Ranson Goodman Hickman Clint & Claude Callicott Troy Dugger Lake Jon Dickey Greg Allen Madison David Martin Jake Mallard Obion Kenneth & Blake Cheatham Tim Smith Warren A.P. Bouldin Heath Nokes Weakley Ronnie Yeargin Jeff Lannom Group IV Late Calloway, KY Craig Carraway Tim Lax Crockett Ashley Elmore Richard Buntin Decatur Stacy Vise Sam Plank/Amanda Mathenia Dyer Mike Underwood Tim Campbell Fayette Lee Graves Jeff Via Franklin Larry Williams Ed Burns/Creig Kimbro Gibson Denton Parkins Philip Shelby Henry 1 Barker Farms Ranson Goodman Henry 2 Wilson Farms Ranson Goodman Lake Jon Dickey Greg Allen Madison Matt Griggs Jake Mallard Marion Dewey & Randy Gilliam Matthew Deist/Ed Burns McCracken, KY Lester & Tracy Sullivan Bob Middleton Montgomery Todd Moore Rusty Evans Obion Kenneth & Blake Cheatham Tim Smith Wayne Brent Dixon Calvin Bryant Weakley Brian Garner Jeff Lannom Group V Early Carlisle, KY Curtsinger Farms Bob Middleton Crockett Stoney Hargett Richard Buntin Dyer Mike Underwood Tim Campbell Franklin Bobby Woodall Ed Burns/Creig Kimbro Gibson Denton Parkins Philip Shelby Lake John Fields Greg Allen Madison David Martin Jake Mallard

4 2014 County Standard Tests -- Soybean Cooperators & Agents Liberty Link MG4 Late ( ) Franklin Bobby Woodall Ed Burns/Creig Kimbro Fulton, Ky Linder Farms Ben Mullins Gibson Denton Parkins Philip Shelby Madison Thomas Moore Jake Mallard Obion Bill Sellers Tim Smith Shelby Scott Johnson Becky Muller

5 Table of Contents Experimental Procedures... 6 Interpretation of data... 7 Results... 7 Location information from AgResearch and Education Centers where the soybean variety tests were conducted in Roundup Ready Maturity Group III Soybean Tests.. 11 Roundup Ready Early Maturity Group IV Soybean Tests ( ). 12 Roundup Ready Late Maturity Group IV Soybean Tests ( ) Roundup Ready Early Maturity Group V Soybean Tests ( ).. 32 Roundup Ready Late Maturity Group V Soybean Tests ( ) Liberty Link Maturity Group IV Soybean Tests Liberty Link Maturity Group V Soybean Tests Conventional Maturity Group IV Soybean Tests Conventional Maturity Group V Soybean Tests Soybean Characteristics 68 Seed Company Contact Information 73

6 PERFORMANCE OF SOYBEAN VARIETIES IN TENNESSEE AGRESEARCH & EDUCATION CENTERS AND COUNTY STANDARD TESTS Experimental Procedures AgResearch & Education Center Tests: All soybean variety trials were conducted in each of the physiographic regions of the state. Tests were conducted at the Agricenter International Research Center (Memphis), Ames Plantation (Grand Junction), Highland Rim (Springfield), East Tennessee (Knoxville), and Milan (Milan), AgResearch & Education Centers (REC). Duplicate plantings of all nine tests [Maturity Group 3 Roundup Ready (i.e., RR3), RR4 early (relative maturity ), RR4 late (RM ) RR5 early (RM ), RR5 late (RM ), Liberty Link LL4 (RM ), LL5 (RM ), Conventional CV4 (RM ), and CV5 (RM ) were made at the Milan and Highland Rim RECs for performance testing with and without irrigation. The plot size at all REC locations was two rows, 30 feet in length with 30 inch row spacing. All varieties were planted at approximately 6 seeds per foot of row (i.e., approximately 104,000 seed per acre in the REC tests). Plots were replicated three times at each location in a randomized complete block design. Plots at Milan and Springfield were sprayed with a foliar fungicide approximately one month after planting, and again approximately 21 days later as a preventative treatment for fungal diseases such as soybean rust. Soybean rust was not detected in Tennessee in Because of the large number of varieties in some tests and the field variation at each location, an incomplete block design was imposed ex post facto prior to data analysis in order to reduce the within-block field variability and the experimental error. Genetics plus Seed Treatments: Seed of all varieties included in the REC tests were treated with one or more fungicides plus an insecticide. Research has shown that seed treatments can influence yield, therefore the yields of varieties reported herein are the combined result of the genetic potential of the varieties plus the seed treatment packages. The seed treatments that were included on each variety were determined by the company or organization and are listed in Table 78. Many soybean varieties are now being marketed with combinations of fungicide and insecticides on the seed, similar to corn. A decision was made to test the varieties in the UT soybean performance tests with the seed treatments so the results would be comparable to what producers could expect from seed they purchase. County Standard Tests: The County Standard Soybean Tests were conducted in 18 counties in Tennessee, and four in Western Kentucky. The number of county locations depended on the test (e.g., 6-17). The County Standard Tests were divided into RR3, RR4 early (relative maturity ), RR4 late (RM ), RR5 early (RM ) and a Liberty Link (RM 4 late) test. Each variety was evaluated in a large strip-plot at each location, thus each county test was considered as one replication of the test in calculating the overall average yield and in conducting the statistical analysis to determine significant differences. At each location, plots were planted, sprayed, fertilized, and harvested with the equipment used in the cooperating producer s farming operation. The width and length of strip-plots were different in each county; however, within a location in a county, the strips were trimmed on the ends so that the lengths were the same for each variety, or if the lengths were different then the harvested length was measured for each variety and appropriate harvested area adjustments were made to determine the yield per acre.

7 Interpretation of Data The tables on the following pages have been prepared with the entries listed in order of performance, the highest-yielding entry being listed first. All yields presented have been adjusted to 13% moisture. At the bottom of the tables, LSD values stand for Least Significant Difference. The mean yields of any two varieties being compared must differ by at least the amount shown (minimum) to be considered different in yielding ability at the 5% level of probability of significance. For example, given that the LSD for a test is 8.0 bu/a and the mean yield of Variety A was 30 bu/a and the mean yield of Variety B was 35 bu/a, then the two varieties are not statistically different in yield because the difference of 5 bu/a is less than the minimum of 8 bu/a required for them to be significant. On the other hand, if the average yield of Variety C was 43 bu/a then it is significantly higher yielding than both Variety B (43-35 = 8 bu/a = LSD of 8) and Variety A (43-30 = 13 bu/a > LSD of 8). Also, the coefficient of variation (C.V.) values are shown at the bottom of each table. This value is a measure of the error variability found within each experiment. It is the percentage that the error variation is of the overall test mean yield at that location. For example, a C.V. of 10% indicates that the size of the error variation is about 10% of the size of the test mean. Similarly, a C.V. of 30% indicates that the size of the error variation is nearly one-third as large as the test mean. A goal in conducting each yield test is to keep the C.V. as low as possible, preferably below 20%. Results Yield and Agronomic Traits. Two hundred and fifty-seven soybean varieties were evaluated in the 2014 AgResearch & Education Center (REC) tests in Tennessee. There were eight varieties in the RR3, 34 in the RR4E, 77 in the RR4L, 47 in the RR5E, nine in the RR5L, 34 in the LL4, 18 in the LL5, 18 in the CV4, and 12 in the CV5 test. The County Standard tests (CST) involved 79 varieties total, consisting of a RR4E test (18 varieties at 11 locations), a RR4L test (28 varieties at 17 locations), a RR5E test (15 varieties at 7 locations) and a Liberty Link MG4 test (18 varieties at 6 locations). In addition to 22 Tennessee counties, the County Standard Tests involved four counties in Western Kentucky (Carlisle, Calloway, Fulton, and McCracken). Tables 2-59 contain data on yield and agronomic traits such as maturity, plant height, lodging, shattering, seed quality, seed protein and oil content. Frogeye leaf spot was observed in plots at the Knoxville location. Ratings were taken on August 28 on a scale of 1 to 9 where a score of 1 = no disease and 9 = heavy disease. Frogeye ratings are included in tables reporting agronomic traits for all locations. Severe SDS symptoms were observed in the Milan irrigated Liberty Link (LL) plots in late August. Due to heavy infestation of this disease within the LL4 and LL5 tests, the Milan irrigated data were analyzed separately for yield and SDS ratings for these two tests (Tables 36 and 45) and were not included in the overall location analyses. Very susceptible varieties suffered very significant yield losses as shown in Tables 36 and 45. At Springfield, SDS susceptible varieties showed a moderate amount of disease but it did not result in significant yield losses for most of the varieties. Due to the abundance of rainfall during the growing season at Ames Plantation, some varieties lodged fairly severely around the R1 stage of growth and as a result the lodging significantly affected yield of those varieties. Table 60 lists the names and the companies descriptive characteristics of the varieties included in the REC tests in Table 61 contains the contact information for each soybean seed company with entries in the 2013 REC tests.

8 Growing Season: The 2014 growing season was characterized by adequate precipitation during planting and emergence with planting dates similar to the five year average. During the growing season, rainfall was inconsistent across the state, with some areas receiving heavy precipitation while others suffered from a lack of precipitation. By late September, 82 percent of the crop rated good to excellent. Soybean harvest was slightly delayed by rainfall; however, yields were above 2013 averages. According to the Tennessee Agricultural Statistics Service, producers planted 1.62 million acres this year, an increase of 40,000 from Acreage harvested for grain is projected to be 1.58 million, up 30,000 acres from last season. Soybean production for 2014 is projected to be million bushels, an increase of 5 percent from the previous year. The state soybean yield average is projected to be 48.0 bu/a, which is 1.5 bushels above the 2013 yield.

9 Table 1. Location information from AgResearch and Education Centers where the soybean variety tests were conducted in Planting Harvest Seeding Research Center Location Date Date Rate Soil Type Roundup Ready Maturity Group III Highland Rim (Irrigated) Springfield 5/21/ /20/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /21/ Dickson Silt Loam Knoxville Knoxville 5/6/ /1/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /1/ Grenada Silt Loam Milan (Non Irrigated) " 5/20/ /1/ Grenada Silt Loam Roundup Ready Maturity Group Early IV ( ) Agricenter International Memphis 5/21/ /19/ Falaya Silt Loam Ames Grand Junction 5/6/ /2/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/21/ /21/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /21/ Dickson Silt Loam Knoxville Knoxville 5/6/ /1/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /2/ Grenada Silt Loam Milan (Non Irrigated) " 5/20/ /2/ Grenada Silt Loam Roundup Ready Maturity Group Late IV ( ) Agricenter International Memphis 5/21/ /19/ Falaya Silt Loam Ames Grand Junction 5/6/ /16/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/21/ /23/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /22/ Dickson Silt Loam Knoxville Knoxville 5/6/ /2/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /21/ Grenada Silt Loam Milan (Non Irrigated) " 5/20/ /23/ Grenada Silt Loam Roundup Ready Maturity Group Early V ( ) Agricenter International Memphis 5/21/ /19/ Falaya Silt Loam Ames Grand Junction 5/6/ /17/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/24/ /3/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /23/ Dickson Silt Loam Knoxville Knoxville 5/6/ /22/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /27/ Grenada Silt Loam Milan (Non Irrigated) " 5/20/ /24/ Grenada Silt Loam Roundup Ready Maturity Group Late V ( ) Agricenter International Memphis 5/21/ /19/ Falaya Silt Loam Ames Grand Junction 5/6/ /17/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/21/ /4/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /23/ Dickson Silt Loam Knoxville Knoxville 5/6/ /22/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /30/ Grenada Silt Loam Milan (Non Irrigated) " 5/20/ /24/ Grenada Silt Loam Liberty Link Maturity Group IV ( ) Agricenter International Memphis 5/21/ /20/ Falaya Silt Loam Ames Grand Junction 5/6/ /17/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/21/ /24/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /2/ Mountview Silt Loam Knoxville Knoxville 5/6/ /9/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /22/ Memphis Silt Loam Milan (Non Irrigated) " 5/20/ /23/ Grenada Silt Loam Liberty Link Maturity Group V ( ) Agricenter International Memphis 5/21/ /20/ Falaya Silt Loam Ames Grand Junction 5/6/ /18/ Lexington Silt Loam Highland Rim (Irrigated) Springfield 5/21/ /24/ Mountview Silt Loam Highland Rim (Non Irrigated) " 5/21/ /2/ Mountview Silt Loam Knoxville Knoxville 5/6/ /9/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /27/ Memphis Silt Loam Milan (Non Irrigated) " 5/20/ /24/ Grenada Silt Loam

10 Table 1. (continued) Conventional Maturity Group IV ( ) Highland Rim (Irrigated) Springfield 5/21/ /3/ Staser Silt Loam Highland Rim (Non Irrigated) " 5/21/ /2/ Mountview Silt Loam Knoxville Knoxville 5/6/ /9/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /22/ Memphis Silt Loam Milan (Non Irrigated) " 5/20/ /24/ Grenada Silt Loam Conventional Maturity Group V ( ) Highland Rim (Irrigated) Springfield 5/21/ /3/ Staser Silt Loam Highland Rim (Non Irrigated) " 5/21/ /2/ Mountview Silt Loam Knoxville Knoxville 5/6/ /9/ Sequatchie Fine Sandy Loam Milan (Irrigated) Milan 5/21/ /22/ Memphis Silt Loam Milan (Non Irrigated) " 5/20/ /24/ Grenada Silt Loam

11 Table 2. Mean yields of eight Maturity Group III Roundup Ready soybean varieties evaluated in five environments in Tennessee during Avg. Yield ± Std Err. Springfield Milan Brand Variety (n=5) Knoxville Irr. Non-Irr. Irr. Non-Irr bu/a Armor AX4391 (RR2) 59 ± Warren Seed DS 3838 R2Y 58 ± NK S39-U2 (RR2) 56 ± Terral-REV Brand 39A35 (RR) 56 ± Armor 39-R16 (RR2) 52 ± Armor AX4390 (RR2) 51 ± Steyer 3802R2 48 ± Armor AX ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%) Table 3. Mean yields and agronomic characteristics of eight Maturity Group III Roundup Ready soybean varieties evaluated in five environments in Tennessee during Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=5) (n=5) (n=3) (n=5) (n=5) (n=1) (n=1) (n=1) (n=1) (n=1) bu/a % Score in. DAP Score % % Score Armor AX4391 (RR2) 59 ± Warren Seed DS 3838 R2Y 58 ± NK S39-U2 (RR2) 56 ± Terral-REV Brand 39A35 (RR) 56 ± Armor 39-R16 (RR2) 52 ± Armor AX4390 (RR2) 51 ± Steyer 3802R2 48 ± Armor AX ± Average Average moisture at harvest. Lodging = 1 to 5 scale; where 1 = 95% of plants erect; 2.5 = ~50% of plants leaning at angle 45 ; 5 = 95+% of plants leaning at an angle 45. Maturity = days after planting (DAP). Leaf Holding = 1 to 5 scale; where 1 = no leaves remaining on stems at maturity; 5 = 90+% of leaves remaining on stems at maturity. Seed Quality = 1 to 5 scale; where 1 = < 5% of seeds showing disease or split seed coats; 5=95+% of seed are diseased or have split seed coats. Protein & Oil on dry weight basis. Disease ratings for Frogeye Leaf Spot are from 1-9, where 0=no disease & 10=maximum amount of plant disease or plant death. Ratings taken 8/28/14 in Knoxville, TN

12 Table 4. Mean yields of 34 Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in seven environments in Tennessee during Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=7) Knoxville Irr. Non-Irr. Irr. Non-Irr. Ames Memphis bu/a Mycogen 5N451R2 58 ± Steyer 4303R2 58 ± LG Seeds C4544R2 58 ± Dyna-Gro 31RY45 (RR2) 57 ± Warren Seed DS 4340 R2Y 57 ± Armor AX4450 (RR2) 56 ± Armor 44-R08 (RR2) 56 ± USG 74F53R (RR2/STS) 55 ± Dyna-Gro S43RY95 (RR2) 55 ± Dyna-Gro 39RY43 (RR2) 55 ± Mycogen 5N452R2 55 ± Armor AX4430 (RR2) 55 ± Terral-REV Brand 44A15 (RR2) 55 ± USG 74F24RS (RR2/STS) 54 ± Progeny 4211 RY 54 ± Warren Seed DS 4330 RR2 54 ± Terral-REV Brand 41A05 (RR) 54 ± Progeny 4440 RY 53 ± Asgrow AG4433 (RR2) 52 ± Dyna-Gro S42RS03 (RR2/STS) 52 ± Steyer 4401R2 51 ± NK S45-V8 50 ± LG Seeds C4411 R2 50 ± USG 74A33R (RR2) 50 ± Armor AX4440 (RR2) 49 ± Asgrow AG4534 (RR2/STS) 49 ± Armor 43-R43 (RR2) 49 ± Asgrow AG4232 (RR2/STS) 49 ± Croplan R2C4114 (RR) 48 ± Warren Seed DST RR2 48 ± Dyna-Gro S40RY25 (RR2) 47 ± Terral-REV Brand 42A65 (RR) 47 ± Armor AX4410 (RR2) 46 ± Progeny 4510 RYS 42 ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%)

13 Table 5. Mean yields and agronomic characteristics of 34 Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in seven environments in Tennessee during Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=7) (n=7) (n=3) (n=5) (n=5) (n=1) (n=1) (n=1) (n=1) (n=1) bu/a % Score in. DAP Score % % Score Mycogen 5N451R2 63 ± Steyer 4303R2 62 ± LG Seeds C4544R2 62 ± Dyna-Gro 31RY45 (RR2) 62 ± Warren Seed DS 4340 R2Y 61 ± Armor AX4450 (RR2) 61 ± Armor 44-R08 (RR2) 61 ± USG 74F53R (RR2/STS) 61 ± Dyna-Gro S43RY95 (RR2) 61 ± Dyna-Gro 39RY43 (RR2) 60 ± Mycogen 5N452R2 60 ± Armor AX4430 (RR2) 59 ± Terral-REV Brand 44A15 (RR2) 59 ± USG 74F24RS (RR2/STS) 59 ± Progeny 4211 RY 59 ± Warren Seed DS 4330 RR2 58 ± Terral-REV Brand 41A05 (RR) 58 ± Progeny 4440 RY 58 ± Asgrow AG4433 (RR2) 56 ± Dyna-Gro S42RS03 (RR2/STS) 55 ± Steyer 4401R2 55 ± NK S45-V8 55 ± LG Seeds C4411 R2 54 ± USG 74A33R (RR2) 54 ± Armor AX4440 (RR2) 54 ± Asgrow AG4534 (RR2/STS) 53 ± Armor 43-R43 (RR2) 53 ± Asgrow AG4232 (RR2/STS) 52 ± Croplan R2C4114 (RR) 52 ± Warren Seed DST RR2 52 ± Dyna-Gro S40RY25 (RR2) 51 ± Terral-REV Brand 42A65 (RR) 51 ± Armor AX4410 (RR2) 50 ± Progeny 4510 RYS 45 ± Average Average moisture at harvest. Lodging = 1 to 5 scale; where 1 = 95% of plants erect; 2.5 = ~50% of plants leaning at angle 45 ; 5 = 95+% of plants leaning at an angle 45. Maturity = days after planting (DAP). Leaf Holding = 1 to 5 scale; where 1 = no leaves remaining on stems at maturity; 5 = 90+% of leaves remaining on stems at maturity. Seed Quality = 1 to 5 scale; where 1 = < 5% of seeds showing disease or split seed coats; 5=95+% of seed are diseased or have split seed coats. Protein & Oil on dry weight basis.

14 Table 6. Mean yields of 15 Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in six environments (n=12) in Tennessee for two years, Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=12) Knoxville Irr. Non-Irr. Irr. Ames Memphis bu/a Mycogen 5N451R2 61 ± Dyna-Gro 31RY45 (RR2) 59 ± LG Seeds C4544R2 59 ± Progeny 4211 RY 59 ± Armor 44-R08 (RR2) 59 ± USG 74F53R (RR2/STS) 58 ± Dyna-Gro 39RY43 (RR2) 56 ± Warren Seed DS 4330 RR2 56 ± Steyer 4401R2 55 ± USG 74A33R (RR2) 54 ± Asgrow AG4433 (RR2) 53 ± Asgrow AG4534 (RR2/STS) 52 ± Asgrow AG4232 (RR2/STS) 52 ± Armor 43-R43 (RR2) 52 ± Progeny 4510 RYS 48 ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%)

15 Table 7. Mean yields and agronomic characteristics of 15 Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in six environments (n=12) in Tennessee for two years, Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=12) (n=12) (n=4) (n=8) (n=8) (n=1) (n=2) (n=2) (n=2) (n=1) bu/a % Score in. DAP Score % % % Mycogen 5N451R2 61 ± Dyna-Gro 31RY45 (RR2) 59 ± LG Seeds C4544R2 59 ± Progeny 4211 RY 59 ± Armor 44-R08 (RR2) 59 ± USG 74F53R (RR2/STS) 58 ± Dyna-Gro 39RY43 (RR2) 56 ± Warren Seed DS 4330 RR2 56 ± Steyer 4401R2 55 ± USG 74A33R (RR2) 54 ± Asgrow AG4433 (RR2) 53 ± Asgrow AG4534 (RR2/STS) 52 ± Asgrow AG4232 (RR2/STS) 52 ± Armor 43-R43 (RR2) 52 ± Progeny 4510 RYS 48 ± Average Average moisture at harvest Lodging = 1 to 5 scale; where 1 = 95% of plants erect; 2.5 = ~50% of plants leaning at angle 45 ; 5 = 95+% of plants leaning at an angle 45. Maturity = days after planting (DAP). Leaf Holding = 1 to 5 scale; where 1 = no leaves remaining on stems at maturity; 5 = 90+% of leaves remaining on stems at maturity. Seed Quality = 1 to 5 scale; where 1 = < 5% of seeds showing disease or split seed coats; 5=95+% of seed are diseased or have split seed coats. Protein & Oil on dry weight basis. Disease ratings for Frogeye Leaf Spot are from 1-9, where 0=no disease & 10=maximum amount of plant disease or plant death.

16 Table 8. Mean yields of eight Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in five environments (n=15) in Tennessee for three years, Avg. Yield ± Std Err. Springfield Milan Brand Variety (n=15) Knoxville Irr. Non-Irr. Irr. Ames bu/a Dyna-Gro 31RY45 (RR2) 63 ± Mycogen 5N451R2 63 ± Armor 44-R08 (RR2) 62 ± Dyna-Gro 39RY43 (RR2) 62 ± Progeny 4211 RY 61 ± Asgrow AG4232 (RR2/STS) 59 ± Asgrow AG4433 (RR2) 58 ± Progeny 4510 RYS 55 ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%) Table 9. Mean yields and agronomic characteristics of eight Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in five environments (n=15) in Tennessee for three years, Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=15) (n=15) (n=7) (n=12) (n=12) (n=1) (n=3) (n=3) (n=3) (n=1) bu/a % Score in. DAP Score % % Score Dyna-Gro 31RY45 (RR2) 63 ± Mycogen 5N451R2 63 ± Armor 44-R08 (RR2) 62 ± Dyna-Gro 39RY43 (RR2) 62 ± Progeny 4211 RY 61 ± Asgrow AG4232 (RR2/STS) 59 ± Asgrow AG4433 (RR2) 58 ± Progeny 4510 RYS 55 ± Average Average moisture at harvest Lodging = 1 to 5 scale; where 1 = 95% of plants erect; 2.5 = ~50% of plants leaning at angle 45 ; 5 = 95+% of plants leaning at an angle 45. Maturity = days after planting (DAP). Leaf Holding = 1 to 5 scale; where 1 = no leaves remaining on stems at maturity; 5 = 90+% of leaves remaining on stems at maturity. Seed Quality = 1 to 5 scale; where 1 = < 5% of seeds showing disease or split seed coats; 5=95+% of seed are diseased or have split seed coats. Protein & Oil on dry weight basis. Disease ratings for Frogeye Leaf Spot are from 1-9, where 0=no disease & 10=maximum amount of plant disease or plant death.

17 Table 10. Yields of 18 Early Maturity Group IV ( ) Roundup Ready soybean varieties in 11 County Standard Tests in Tennessee and Kentucky during Avg. MS Brand/Variety Yield Moist. Dyer Fayette Gibson Giles Henry Hickman Lake Madison Obion Warren Weakley bu/a % 5/20 5/15 5/7 6/17 5/5 5/21 6/16 5/5 5/15 6/3 5/22 A Progeny P4211 RY (RR2Y) A **Mycogen 5N451 RR2Y AB Asgrow AG4533 GENRR2Y/SR AB LG Seeds C4411R AB *Dyna-Gro 31RY45 RR2Y ABC **Armor 44-R08 RR2Y ABC Armor 43-R43 RR2Y ABC Mycogen 5N452 RR2Y ABCD Warren Seed DS 4330 R2Y BCD Steyer 4203R2 RR2Y BCD Warren Seed DS 4340 R2Y CD Beck's XL 433R CD Beck's XL 444NR (RR) CD Asgrow AG4534 GENRR2Y/SR CD USG 74F53R (RR2Y/STS) CD Asgrow AG4232 GENRR2Y (STS) D Dyna-Gro 39RY43 RR2Y E Progeny P4510 RY (RR2Y/STS) Average (bu/a) Yields have been adjusted to 13% moisture. Avg. % moisture at harvest across all locations. Planting date. Each variety was evaluated in a large strip-plot at each loction, thus each county test was considered as one replication of the test in calculating the average yield and in conducting the statistical analysis to determine significant differences (MS). Varieties marked with an asterisk (*) and/or (**) were in the top performing group in 2014, 2013 and MS= Varieties with any MS letter in common are not statistically different at the 5% level of probability. County locations include: Dyer, Fayette, Gibson, Giles, Henry, Hickman, Lake, Madison,Obion, Warren and Weakley. Data provided by Robert C. Williams, Ext. Area Specialist, Grain Crops, and the extension agents in the counties shown above.

18 Table 11. Overall average yields and moistures of 14 Early Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in County Standard Tests (n=11) and AgResearch and Education Centers (n=7) in Tennessee during Research and Averages of CST & REC Tests County Standard Trials Education Center Trials Avg. Avg. Avg. Brand Variety Yield Moisture Yield Moisture Yield Moisture bu/a % bu/a % bu/a % Mycogen 5N451R Dyna-Gro 31RY45 (RR2) Progeny 4211 RY Armor 44-R08 (RR2) Warren Seed DS 4340 R2Y Mycogen 5N452R Warren Seed DS 4330 RR USG 74F53R (RR2/STS) LG Seeds C4411 R Dyna-Gro 39RY43 (RR2) Armor 43-R43 (RR2) Asgrow AG4534 (RR2/STS) Asgrow AG4232 (RR2/STS) Progeny 4510 RYS Average (bu/a) Yields have been adjusted to 13% moisture.

19 Table 12. Mean yields of 77 Late Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in seven environments in Tennessee during Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=7) Knoxville Irr. Non-Irr. Irr. Non-Irr. Ames Memphis bu/a Armor 47-R13 (RR2/STS) 60 ± Morsoy Xtra 47X12 (RR2/STS) 60 ± Asgrow AG4933 (RR2) 59 ± Dyna-Gro S48RS53 (RR2/STS) 59 ± Mycogen 5N479R2 58 ± Croplan R2C 4752 S (RR/STS) 58 ± LG Seeds C4780R2 58 ± Dyna-Gro S49RY25 (RR2) 58 ± Delta Grow 4985 RR 57 ± Asgrow AG4832 (RR2/STS) 57 ± Progeny 4850 RYS 57 ± Terral-REV Brand 47R34 (RR) 57 ± Warren Seed DS 4850 R2Y/STS 57 ± Warren Seed DS 4633 R2Y/STS 56 ± Progeny 4788 RY 56 ± Delta Grow 4765 RR2/STS 56 ± Armor 46-R65 (RR2) 55 ± Terral-REV Brand 48R44 (RR) 55 ± LG Seeds C4696R2 (STS) 55 ± Terral-REV Brand 49R94 (RR) 55 ± Mycogen X54490NR2 54 ± Morsoy Xtra 49X54 (RR2) 54 ± Mycogen 5N478R2 (STS) 54 ± USG 74B83R (RR2/STS) 54 ± Hornbeck RY4721 (RR2/STS) 54 ± TN Exp R2 53 ± Beck's XL Brand 485R2 (RR/STS) 53 ± Terral-REV Brand 49A14 (RR2/STS) 52 ± Delta Grow 4670 RR2 52 ± Delta Grow 4685 RR2 52 ± Progeny 4848 RYS 52 ± Terral-REV Brand 46R64 (RR) 52 ± Caverndale Farms 486 RR2/STSn 52 ± Dyna-Gro S47RY13 (RR2) 52 ± Dyna-Gro SX14847RS (RR2/STS) 52 ± Steyer 4703R2 52 ± Asgrow AG4934 (RR2/STS) 52 ±

20 Table 12 (continued) Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=7) Knoxville Irr. Non-Irr. Irr. Non-Irr. Ames Memphis bu/a Dyna-Gro SX14247R (RR2) 52 ± Steyer 4802 R2 (STS) 52 ± Hornbeck RY ± Terral-REV Brand 49A55 (RR) 52 ± Morsoy Xtra 48X02 (RR2) 52 ± Morsoy Xtra 46X04 (RR2) 52 ± Asgrow AG4632 (RR2/STS) 51 ± Croplan R2C 4873 S (RR/STS) 51 ± Midwest Premium Genetics 4714NRR 51 ± Croplan R2C4654 (RR) 51 ± Terral-REV Brand 48R22 (RR) 51 ± Armor 48-R66 (RR2) 51 ± Terral-REV Brand 52A94 (RR/STS) 51 ± Delta Grow 4825 RR 50 ± Progeny 4747 RY 50 ± Beck's XL Brand 493R4 50 ± Steyer 4602R2 50 ± Dyna-Gro S46RY85 (RR2) 50 ± Progeny 4613 RYS 49 ± Armor 49-R56 (RR2) 49 ± NK S47-K5 49 ± Steyer 4702 R2 49 ± Delta Grow 4940 RR 49 ± Terral-REV Brand 47R53 (RR) 49 ± Delta Grow 4880 RR 49 ± Terral-REV Brand 49A75 (RR) 48 ± Armor AX4490 (RR2) 48 ± Progeny 4900 RY 48 ± Delta Grow 4925 RR 47 ± Delta Grow 4930 RR/STS 47 ± USG 74B94RS (RR2/STS) 47 ± Morsoy Xtra 48X34 (RR2/STS) 47 ± Armor AX4471 (RR2) 46 ± LG Seeds C4919R2 (STS) 46 ± Caverndale Farms 496 RR2Yn 46 ± USG 74A79R (RR2/STS) 46 ± Armor AX4480 (RR2) 43 ±

21 Table 12 (continued) Avg. Yield ± Std Err. Springfield Milan Milan Agricenter Brand Variety (n=7) Knoxville Irr. Non-Irr. Irr. Non-Irr. Ames Memphis bu/a NK S46-L2 (RR2) 43 ± Delta Grow 4970 RR 41 ± Hornbeck RY4620 (RR2/STS) 40 ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%)

22 Table 13. Mean yields and agronomic characteristics of 77 Late Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in six environments in Tennessee in Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=7) (n=7) (n=3) (n=5) (n=5) (n=1) (n=1) (n=1) (n=1) (n=1) bu/a % Score in. DAP Score % % Score Armor 47-R13 (RR2/STS) 60 ± Morsoy Xtra 47X12 (RR2/STS) 60 ± Asgrow AG4933 (RR2) 59 ± Dyna-Gro S48RS53 (RR2/STS) 59 ± Mycogen 5N479R2 58 ± Croplan R2C 4752 S (RR/STS) 58 ± LG Seeds C4780R2 58 ± Dyna-Gro S49RY25 (RR2) 58 ± Delta Grow 4985 RR 57 ± Asgrow AG4832 (RR2/STS) 57 ± Progeny 4850 RYS 57 ± Terral-REV Brand 47R34 (RR) 57 ± Warren Seed DS 4850 R2Y/STS 57 ± Warren Seed DS 4633 R2Y/STS 56 ± Progeny 4788 RY 56 ± Delta Grow 4765 RR2/STS 56 ± Armor 46-R65 (RR2) 55 ± Terral-REV Brand 48R44 (RR) 55 ± LG Seeds C4696R2 (STS) 55 ± Terral-REV Brand 49R94 (RR) 55 ± Mycogen X54490NR2 54 ± Morsoy Xtra 49X54 (RR2) 54 ± Mycogen 5N478R2 (STS) 54 ± USG 74B83R (RR2/STS) 54 ± Hornbeck RY4721 (RR2/STS) 54 ± TN Exp R2 53 ± Beck's XL Brand 485R2 (RR/STS) 53 ± Terral-REV Brand 49A14 (RR2/STS) 52 ± Delta Grow 4670 RR2 52 ± Delta Grow 4685 RR2 52 ± Progeny 4848 RYS 52 ± Terral-REV Brand 46R64 (RR) 52 ± Caverndale Farms 486 RR2/STSn 52 ± Dyna-Gro S47RY13 (RR2) 52 ± Dyna-Gro SX14847RS (RR2/STS) 52 ± Steyer 4703R2 52 ± Asgrow AG4934 (RR2/STS) 52 ± Dyna-Gro SX14247R (RR2) 52 ± Steyer 4802 R2 (STS) 52 ± Hornbeck RY ± Terral-REV Brand 49A55 (RR) 52 ± Morsoy Xtra 48X02 (RR2) 52 ± Morsoy Xtra 46X04 (RR2) 52 ±

23 Table 13 (continued) Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Holding Quality Protein Oil Frogeye Brand Variety (n=7) (n=7) (n=3) (n=5) (n=5) (n=1) (n=1) (n=1) (n=1) (n=1) bu/a % Score in. DAP Score % % Score Asgrow AG4632 (RR2/STS) 51 ± Croplan R2C 4873 S (RR/STS) 51 ± Midwest Premium Genetics 4714NRR 51 ± Croplan R2C4654 (RR) 51 ± Terral-REV Brand 48R22 (RR) 51 ± Armor 48-R66 (RR2) 51 ± Terral-REV Brand 52A94 (RR/STS) 51 ± Delta Grow 4825 RR 50 ± Progeny 4747 RY 50 ± Beck's XL Brand 493R4 50 ± Steyer 4602R2 50 ± Dyna-Gro S46RY85 (RR2) 50 ± Progeny 4613 RYS 49 ± Armor 49-R56 (RR2) 49 ± NK S47-K5 49 ± Steyer 4702 R2 49 ± Delta Grow 4940 RR 49 ± Terral-REV Brand 47R53 (RR) 49 ± Delta Grow 4880 RR 49 ± Terral-REV Brand 49A75 (RR) 48 ± Armor AX4490 (RR2) 48 ± Progeny 4900 RY 48 ± Delta Grow 4925 RR 47 ± Delta Grow 4930 RR/STS 47 ± USG 74B94RS (RR2/STS) 47 ± Morsoy Xtra 48X34 (RR2/STS) 47 ± Armor AX4471 (RR2) 46 ± LG Seeds C4919R2 (STS) 46 ± Caverndale Farms 496 RR2Yn 46 ± USG 74A79R (RR2/STS) 46 ± Armor AX4480 (RR2) 43 ± NK S46-L2 (RR2) 43 ± Delta Grow 4970 RR 41 ± Hornbeck RY4620 (RR2/STS) 40 ± Average Average moisture at harvest. Lodging = 1 to 5 scale; where 1 = 95% of plants erect; 2.5 = ~50% of plants leaning at angle 45 ; 5 = 95+% of plants leaning at an angle 45. Maturity = days after planting (DAP). Leaf Holding = 1 to 5 scale; where 1 = no leaves remaining on stems at maturity; 5 = 90+% of leaves remaining on stems at maturity. Seed Quality = 1 to 5 scale; where 1 = < 5% of seeds showing disease or split seed coats; 5=95+% of seed are diseased or have split seed coats. Protein & Oil on dry weight basis. Disease ratings for Frogeye Leaf Spot are from 1-9, where 0=no disease & 10=maximum amount of plant disease or plant death. Ratings taken 8/28/14 in Knoxville, TN

24 Table 14. Mean yields of 43 Late Maturity Group IV ( ) Roundup Ready soybean varieties evaluated in six environments (n=12) in Tennessee for two years, Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=12) Knoxville Irr. Non-Irr. Irr. Ames Memphis bu/a Morsoy Xtra 47X12 (RR2/STS) 61 ± Progeny 4850 RYS 60 ± Warren Seed DS 4850 R2Y/STS 59 ± Delta Grow 4765 RR2/STS 59 ± Terral-REV Brand 48R44 (RR) 58 ± Asgrow AG4832 (RR2/STS) 58 ± Asgrow AG4933 (RR2) 57 ± Terral-REV Brand 47R34 (RR) 57 ± Delta Grow 4670 RR2 57 ± Dyna-Gro S48RS53 (RR2/STS) 56 ± Croplan R2C 4752 S (RR/STS) 56 ± Armor 47-R13 (RR2/STS) 56 ± Caverndale Farms 486 RR2/STSn 56 ± Terral-REV Brand 46R64 (RR) 56 ± LG Seeds C4780R2 55 ± Terral-REV Brand 49R94 (RR) 55 ± Hornbeck RY4721 (RR2/STS) 55 ± Delta Grow 4825 RR 55 ± Mycogen 5N478R2 (STS) 55 ± USG 74B83R (RR2/STS) 55 ± Progeny 4613 RYS 55 ± Steyer 4702 R2 54 ± Asgrow AG4632 (RR2/STS) 54 ± Morsoy Xtra 48X02 (RR2) 54 ± Croplan R2C 4873 S (RR/STS) 54 ± Asgrow AG4934 (RR2/STS) 53 ± Terral-REV Brand 48R22 (RR) 53 ± Progeny 4747 RY 53 ± Steyer 4802 R2 (STS) 53 ± Delta Grow 4940 RR 53 ± Terral-REV Brand 47R53 (RR) 52 ± Armor 49-R56 (RR2) 52 ± Midwest Premium Genetics 4714NRR 52 ± Armor 48-R66 (RR2) 51 ± Dyna-Gro S47RY13 (RR2) 51 ± USG 74A79R (RR2/STS) 51 ± Delta Grow 4925 RR 51 ±

25 Table 14 (continued) Avg. Yield ± Std Err. Springfield Milan Agricenter Brand Variety (n=12) Knoxville Irr. Non-Irr. Irr. Ames Memphis Progeny 4900 RY 51 ± Delta Grow 4880 RR 50 ± Hornbeck RY4620 (RR2/STS) 48 ± Caverndale Farms 496 RR2Yn 47 ± NK S46-L2 (RR2) 46 ± Delta Grow 4970 RR 44 ± Average (bu/a) L.S.D..05 (bu/a) C.V. (%)

26 Table 15. Mean yields and agronomic characteristics of 43 Late Maturity Group IV ( ) Roundup Ready soybean varieties in six environments (n=12) in Tennessee for two years, Avg. Yield Leaf Seed ± Std Err. Moisture Lodging Height Maturity Shattering Holding Quality Protein Oil Frogeye Brand Variety (n=12) (n=12) (n=5) (n=8) (n=8) (n=1) (n=1) (n=2) (n=2) (n=2) (n=2) bu/a % Score in. DAP Score % % Score Morsoy Xtra 47X12 (RR2/STS) 61 ± Progeny 4850 RYS 60 ± Warren Seed DS 4850 R2Y/STS 59 ± Delta Grow 4765 RR2/STS 59 ± Terral-REV Brand 48R44 (RR) 58 ± Asgrow AG4832 (RR2/STS) 58 ± Asgrow AG4933 (RR2) 57 ± Terral-REV Brand 47R34 (RR) 57 ± Delta Grow 4670 RR2 57 ± Dyna-Gro S48RS53 (RR2/STS) 56 ± Croplan R2C 4752 S (RR/STS) 56 ± Armor 47-R13 (RR2/STS) 56 ± Caverndale Farms 486 RR2/STSn 56 ± Terral-REV Brand 46R64 (RR) 56 ± LG Seeds C4780R2 55 ± Terral-REV Brand 49R94 (RR) 55 ± Hornbeck RY4721 (RR2/STS) 55 ± Delta Grow 4825 RR 55 ± Mycogen 5N478R2 (STS) 55 ± USG 74B83R (RR2/STS) 55 ± Progeny 4613 RYS 55 ± Steyer 4702 R2 54 ± Asgrow AG4632 (RR2/STS) 54 ± Morsoy Xtra 48X02 (RR2) 54 ± Croplan R2C 4873 S (RR/STS) 54 ± Asgrow AG4934 (RR2/STS) 53 ± Terral-REV Brand 48R22 (RR) 53 ± Progeny 4747 RY 53 ± Steyer 4802 R2 (STS) 53 ± Delta Grow 4940 RR 53 ± Terral-REV Brand 47R53 (RR) 52 ± Armor 49-R56 (RR2) 52 ± Midwest Premium Genetics 4714NRR 52 ± Armor 48-R66 (RR2) 51 ± Dyna-Gro S47RY13 (RR2) 51 ± USG 74A79R (RR2/STS) 51 ± Delta Grow 4925 RR 51 ±