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South Region Normal and Liberty Link Varieties: South Region Roundup Ready Varieties:
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O H I O
S O Y B E A N
P E R
F O R M A N C E T R I A L
S
2012
Chris D. Kroon Van Diest, Research Associate, Dept. of Horticulture &
Crop Science
John McCormick, Research
Associate, Dept. of Horticulture
& Crop Science
Mark Sulc,
Professor, Dept of Horticulture and Crop Science
The Ohio State University, College of Food, Agriculture and Environmental
Science
Ohio State University Extension and OARDC
This report can be found on the internet at:
www.agcrops.osu.edu
The data online is
sortable by column to aid in variety comparison and selection
INTRODUCTION
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 40 ft. long
and 5 ft. wide containing four rows seeded at 140,000 seeds per acre.
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 2012 entries were submitted voluntarily by seed companies and the
Ohio Seed Improvement Association. Entry fee charges were paid per entry and
region.
Test by Type. Varieties are
grouped, tested and analyzed by type and maturity. All normal and Liberty Link
varieties are tested as a group.
Roundup Ready varieties are tested in two groups (early and late) based
on maturity. The same production, testing and evaluation techniques, except for weed
control, were used for normal tests and Roundup Ready tests. The performance of
normal & Liberty Link entries and Roundup Ready entries is not comparable
statistically because they were not tested and analyzed together. Varieties
should only be compared within a test group not between test groups.
Normal and Liberty Link varieties can be found in tables 3, 6, 9.
Use the table below to find varieties by type, region and maturity.
MEASUREMENTS AND RECORDS
Relative Maturity. 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.
The varieties in each table were tested as a group, and their performance
analyzed and reported for that group.
Plant height was measured as a group
at physiological maturity.
Seed size is reported as number of seeds per pound.
Yield. Each soybean variety
was harvested when the moisture content was between 8 and 12 percent and yields reported in
bushels per acre at 13 percent moisture.
Lodging score. There was no lodging in 2012.
Protein and Oil %. Analysis
was determined by near infrared transmittance technology. The test was performed
by the OSU Grain Quality Lab using a Tecator Infratec whole grain analyzer
calibrated with the Composition Systems Calibration developed at Iowa State
University and is reported at 13 percent moisture.
LSD. A Least Significant Difference (LSD) for yield was computed for each
maturity group. LSD's are reported in bushels per acre at 13 percent moisture.
Yields of two varieties within a maturity group are significantly different 90%
of the time if their yields differ by more than the LSD value shown for that
maturity group.
DATA USE. 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 the
Ohio State University Extension.
Table 1: The 2012 Ohio Soybean Performance
Trials, Production Practices
N1
N2
C1
C2
S1
S2
Henry Co.
Erie Co.
Mercer Co.
Delaware Co.
Preble Co.
Clinton Co.
Tillage
Fall
None
None
None
None
None
None
Spring
None
None
None
None
None
TurboTil
Soil and Crop Background
Soil
Type
Hoytville
Kibbie
Mercer
Blount
Crosby
Clairmont
Soil pH
7.64
6.70
7.39
7.62
6.70
6.80
Soil Test P(ppm) 29
100
16
22
100
40
Soil Test K(ppm) 159
320
130
73
180
160
Previous Crop
Corn
Corn
Corn
Corn
Corn
Corn Plant Date 5/16 5/15 5/22 5/21 5/18 5/17
Harvest Date
10/28
10/26
10/29
10/24
10/22
10/23
Normal Variety Weed Control
Preemerge (all sites)
Dual II /
Roundup UltraMax
Postemerge
(all sites) Basagran
/ First
Rate/ Flexstar /
SelectMax
Roundup Ready Variety Weed Control
Preemerge
(all sites) Dual II
/ Roundup UltraMax
Postemerge (all sites)
Roundup UltraMax /
SelectMax
11/12
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, Keith L. Smith, Director,
Ohio State University Extension. |
