Ohio Soybean Performance Trials 2019
Wayde Looker, Matthew Hankinson, John McCormick, and Laura Lindsey
Horticulture & Crop Science
Ohio State University
Extension and OARDC
The Ohio State University, College of Food, Agriculture and Environmental
The purpose of the Ohio Soybean Performance Trials is to evaluate soybean varieties for yield and other agronomic characteristics. This evaluation gives soybean producers comparative information for selecting the best varieties for their unique production systems.
FIELD PLOT DESIGN
The entries for each test site were planted in a randomized complete block design. Each entry was replicated four times and planted in plots 28 ft long and 5 ft wide containing four rows seeded at 15-inch row width. Seeding rate was 150,000 seeds per acre. At all locations, corn was the previous crop and no-till. Farmer cooperators sprayed preemergence herbicides (varied by location). Postemergence herbicides included: N1 and C1 = Select Max and Basagran; C2 = Select Max, Basagran, First Rate, Flexstar, Raptor; S1 = Alliance, Select Max, Basagran, First Rate, Flexstar; S2 = Alliance, Select Max, Basagran, Flexstar.
METHOD OF CONDUCTING TRIALS
Entries in Trials. Performance of entries in The Ohio Soybean Performance Trials are published if seed will be available to Ohio soybean producers for the following planting season. All 2019 entries were submitted voluntarily by seed companies. Entry fee charges were paid per entry and region.
Test by Maturity and Type. Varieties were grouped, tested and analyzed by maturity (early and late). Conventional (CV), Liberty Link (LL), Roundup Ready (RR1), Roundup Ready 2 Yield (RR2Y), Xtend, Enlist, glyphosate tolerant (GT), Liberty Link/glyphosate-tolerant (LL/GT27), and sulfonyl urea tolerant (STS) varieties were tested in the same block to allow for head-to-head comparisons. All herbicide traits are statistically comparable within a location and maturity grouping (early or late). Conventional herbicides were sprayed on all entries.
Table 1: The 2019 Ohio Soybean Performance Trials, Site Descriptions
||Silty clay loam
Test P-Mehlich (ppm)
||planted due to
Test K (ppm)
||Oct 17 (early); Oct 18 (late)
||Oct 20 (early); Oct 19 (late)
MEASUREMENTS AND RECORDS
Relative maturity is a rating designed to account for all of the factors that affect maturity date and includes variety, planting date, weather, latitude, and disease. Maturity is defined as the "95% brown pods" stage. A variety with a Relative Maturity rating of 3.5 will reach the 95% brown pod stage 5 days later than a variety with a rating of 3.0. Relative maturity was submitted by seed companies.
There was no lodging in 2019.
Seed size is reported as number of seeds per pound.
Each soybean variety was harvested when the moisture content was between 8 and 14 percent and yields reported in bushels per acre at 13 percent moisture.
Protein, Oil Percentage.
Analysis was determined by near infrared transmittance technology. The test was performed using a Foss NIR whole grain analyzer and is reported at 13 percent moisture.
A Least Significant Difference (LSD) for yield was computed for each location and maturity grouping. LSDs are reported in bushels per acre at 13 percent moisture. Yields of two varieties within a location and maturity grouping are significantly different 90% of the time if their yields differ by more than the LSD value shown for that maturity group. A double asterisk (**) is used to denote the variety with the highest yield within a location and maturity grouping. A single asterisk (*) is used to denote varieties with yield not statistically different than the highest yielding variety.
Inclusion of entries in the Ohio Soybean Performance Trials does not constitute an endorsement of a particular entry by the Ohio State University, Ohio Agricultural Research and Development Center, or Ohio State University Extension.
Go to Ohio Crop
All educational programs and activities conducted by Ohio State University Extension are available to clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability or Vietnam-era veteran status.
Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Roger Rennekamp, Director, Ohio State University Extension.