Virginia Soybean Variety Evaluation Tests 2000

David L. Holshouser, Soybean Specialist, Virginia Tech

Henry L. Pulley, Research Specialist, Virginia Tech

Tidewater Agricultural Research and Extension Center
6321 Holland Rd.
Suffolk, Virginia 23437
(757) 657-6450

Posted January 2001

TABLE OF CONTENTS

Please note: Tables 1 through 13 are also available as Excel Spreadsheet files: Double Crop     Full Season     2000 Yield
Acknowledgments

Introduction to Variety Tests

Methods and Definitions

Production Information

Monthly Precipitation

Suppliers of Soybean Varieties

TABLES OF DATA:

TABLE 1a-f. Yield Summaries and Average Relative Yield Full Season Entries

TABLE 2a-e. Yield Summaries and Average Relative Yield Double Crop Entries

TABLE 3a-c. Performance of Maturity Group III Full Season Entries

TABLE 4a-c. Performance of Maturity Group III Double crop Entries

TABLE 5a-e. Performance of Maturity Group IV Early Full Season Entries

TABLE 6a-f. Performance of Maturity Group IV Early Double crop Entries

TABLE 7a-e. Performance of Maturity Group IV Late Full Season Entries

TABLE 8a-f. Performance of Maturity Group IV Late Double Crop Entries

TABLE 9a-e. Performance of Maturity Group V Early Full Season Entries

TABLE 10a-f. Performance of Maturity Group V Early Double crop Entries

TABLE 11a-e. Performance of Maturity Group V Late Full Season Entries

TABLE 12a-f. Performance of Maturity Group V Late Double Crop Entries

TABLE 13a-c. Performance of Maturity Group VI Full Season Entries

ACKNOWLEDGEMENTS

Sincere thanks are given to the many cooperators and contributors who have made the Soybean Variety Evaluation Tests possible.

The cooperation and support offered by commercial seed companies, state crop improvement associations, and several experiment stations in supplying seed and information on varieties is gratefully acknowledged.

Special thanks is given to the following cooperators for supplying land and technical assistance while conducting these tests:

C. L. Barrack, Eastern Virginia Agricultural Research and Extension Center, Warsaw
D. Dixon, Northern Piedmont Agricultural Research and Extension Center, Orange
W. B. Wilkinson, III, Southern Piedmont Agricultural Research and Extension Center, Blackstone
G. R. Buss, Department of Crop and Soil Environmental Sciences, VPI & SU, Blacksburg
J. T. Custis Eastern Shore Agricultural Research and Extension Center, Painter
R. A. Ashburn, Tidewater Agricultural Research and Extension Center, Suffolk
Rodney Foster, Producer, City of Chesapeake
Ted Haberland, Producer, Orange County
Lyle Pugh, Producer, City of Chesapeake

A special note of appreciation is also extended to the Unit Extension Faculty who do an excellent job of disseminating the information.

The authors would also like to express appreciation to Patsy Lewis, Patty Turner, Allen Kiger, Cassy Price, and Teresa Vaughan for their technical and secretarial assistance. Their assistance in the collection of data and preparation of this report is gratefully acknowledged.

Financial assistance from the Virginia Soybean Board to help fund a portion of these tests is gratefully acknowledged.

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INTRODUCTION TO VARIETY TESTS

The purpose of this publication is to provide performance data of the many soybean varieties offered for sale in Virginia. These data should be of benefit to producers and agribusinesses in making selections of varieties for their use. It is realized that not all varieties that are offered for sale in Virginia are included in these tests. There is no implication that varieties not included are inferior in any way, but only that they have not been tested. The private varieties that have been evaluated in these tests were submitted for testing by commercial seed companies.

Variety evaluations were conducted under full-season and double crop conditions at Blackstone, Chesapeake, Orange, Painter, Suffolk, and Warsaw. All double-crop tests were no-till planted following small grains. Due to the number of entries, it was necessary to separate the varieties by maturity groups in all locations.

In general, Virginia soybean yields in 2000 were excellent. All locations reported in publication, with the exception of a few double-crop locations averaged over 40 bushels per acre. Still, several experiments conducted are not being reported here due to high variability. The entire full-season experiment in Blackstone was replanted in early June due to poor emergence. Although a good stand was obtained from this replanting, growth was poor due to unknown reasons. Therefore, all full-season tests at this location were dropped. The late maturity group V experiment in Orange was also dropped due to an early frost that occurred while the soybeans were still in the late seed fill stages. This caused differences in yield to be due more to relative maturity of the varieties within that test rather than to genetic differences. Otherwise, the data obtained this year in these experiments were very good.

INTERPRETING THE RESULTS

Tables 1 and 2 are yield summaries over all locations. Tables 3 through 13 contain detailed yield and other information from each location. The highest average yielding varieties are listed first in each table. It is not statistically correct to compare varieties from different maturity groups. However, it is recommended that producers select two to three of the highest yielding varieties from each maturity group adapted to his region in order to spread out harvesting time and yield risks associated with timing of summer rainfall patterns. Because of year-to-year variability in variety performance it is suggested that data for varieties with less than three locations or years testing be considered preliminary. The average performance of a variety over multiple environments is more reliable than its performance in one test. Multiple-year data can be obtained from the authors. Many of the new varieties, which do not have two-year averages, are excellent and will probably earn a share of the Virginia soybean acreage. Other traits are also shown in the tables (maturity, lodging, height, quality, purple stain, seed size) because each producer emphasizes certain of these traits or a combination of them when selecting varieties for his farm. After examining these results, the producer may want to plant limited quantities of several new better performing varieties to observe how they perform on his farm and under his management conditions.

Within maturity groups at each location, an LSD (least significant difference) was calculated. The LSD is a statistical test calculated at the 10% probability level to aid the reader in comparing the yield differences among varieties within a particular maturity group. When two entries are compared and the difference between them is greater than the calculated LSD value, the varieties are considered to be significantly different. The "NS" designation indicates that there were no significant differences for yield among the varieties within that maturity group. The coefficient of variation (CV) is a relative measure of variation and is an indicator of the degree of precision associated with the test. For soybean variety evaluation tests, CV values less than 15% indicates that the precision of the test was good in distinguishing differences between varieties.

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METHODS AND DEFINITIONS

The variety test was evaluated in a randomized complete block design and replicated three times. All tests were maintained weed free with conventional herbicides and hand weeding. Row widths, number of rows planted and harvested, and length of row harvested are shown on the production information page. Harvest was conduction as near to the date of first harvest maturity as work schedules and weather would permit. Fertilizer was applied according to VPI & SU soil test recommendations.

Seeding Rates (seeds/acre):
Maturity Group Full Season Double-Crop
III 167,000 251,000
IV 167,000 251,000
V 167,000 251,000
VI 167,000 --

Yields were taken and adjusted to 13% moisture. A bushel weight of 60 pounds was used to determine bushel-per-acre (BU/AC) yield.

Maturity (MAT in DAYS) was taken at the date when 95% of the pods turned brown (R8).

Seed Size (SS) is measured as number of seed per pound

Lodging (LOD) notes are recorded on a scale of 1 to 5 according to the following criteria:

1.0 - almost all plants erect
2.0 - either all plants leaning slightly, or a few plants down
3.0 - either all plants leaning moderately (45o angle), or 25 to 50% down
4.0 - either all plants leaning considerably, or 50 to 80% down
5.0 - all plants down

Plant Height (HT) is determined as the average length of plants in a plot from the ground to the uppermost node of the plant at maturity.

Seed Quality (SQ) is rated from 1 to 5 according to the following scale: 1.0 = very good; 2.0 = good; 3.0 = fair; 4.0 = poor; 5.0 = very poor.

Purple Seed Stain (PSS) is the percentage of seed from a 100-seed sample that are affected with that disease.

Hilum Bleeding (HB) is the percentage of seed from a 100-seed sample that showed dark discoloration around the hilum, sometimes referred to as hilum bleeding. These symptoms are an indication of certain soybean viruses such as Soybean Mosaic Virus. These ratings do not indicate that a particular variety is susceptible to the virus just that symptoms are present.

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PRODUCTION INFORMATION

Location Planting Date Tillage System Herbicides Date Applied Insecticides Soil Type Row Width Number of Rows Length of Row Harvested
Planted Harvested
Chesapeake-FS 6/10 No-Till Roundup
Dual Mag,Canopy XL
6/9
6/10

None
Ridge Land 15" 5 3 17'
Orange-FS 6/8 Conv. Dual 8E (incorp.)
Blazer, Pinnacle
6/1
7/12
None Dyke & Starr 15" 5 3 17=
Painter-FS 6/9 Conv. Dual Mag,Lorox 6/10
8/24

Asana XL
Bojac SL 15" 5 3 17'
Suffolk-FS 5/26 No-Till Dual Mag,Canopy XL
Roundup Ultra
Blazer, Assure II
5/26
 
7/10
None Lynchburg FSL 15" 5 3 17'
Warsaw-FS 6/1 Conv. Dual Broadstrike
Reflex, Fusilade
5/10
7/10
None Kempsville L 30" 4 2 12'
Blackstone-DC 6/27 No-Till Lasso, Roundup
Poast Plus
6/29
7/19
None Wedowee 18 4 3 17"
Chesapeake-DC 6/13 No-Till Dual Mag, CanopyXL
Roundup Ultra
Storm, Basagram,
Poast Plus
6/13
 
7/14
None Acredale 18" 4 3 17=
Orange-DC 6/23 No-Till Blazer,AssureII 7/12 None Davidson 18" 4 3 17=
Painter-DC 7/6 No-Till Dual Mag.,Lorox,
Roundup Ultra
Poast
7/8
 
8/24
Asana XL Bojac SL 18" 4 3 17'
Suffolk-DC 6/16 No-Till Dual Mag, Canopy
XL Roundup Ultra
Blazer, Assure II
6/16
7/10
None Lynchburg FSL 18" 4 3 17'
Warsaw-DC 7/3 No-Till Roundup Dual
Fusion
7/1
8/13
None Kempsville L 24" 4 2 12=

*FS = Full-Season, DC = Double-crop

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MONTHLY PRECIPITATION (INCHES) AND AVERAGE RAINFALL DURING MAY THROUGH OCTOBER AT VARIETY TEST LOCATIONS.

Location   May June July Aug. Sept. Oct. Total
Blackstone 2000
33-yr Avg.
3.52
3.39
0.07
3.48
4.05
5.21
2.76
3.90
4.46
3.94
0.09
2.58
14.95
22.51
Chesapeake 2000 33-yr Avg. 5.10
4.37
7.90
3.53
5.40
5.57
8.30
5.62
3.30
4.20
0.10
3.85
30.10
27.14
Orange 2000
61-yr. Avg.
2.15
3.86
5.95
3.74
3.44
4.55
2.72
3.97
5.12
3.67
0.01
3.44
19.39
23.23
Painter 2000
61-yr Avg.
3.30
4.28
3.95
3.08
4.39
3.39
3.58
3.36
8.29
4.42
6.64
4.18
30.15
22.71
Suffolk 2000
69-yr. Avg.
5.52
3.93
6.09
4.18
4.33
5.84
7.13
5.85
4.17
4.14
0.03
3.41
27.27
27.35
Warsaw 2000
36-yr Avg.
3.27
4.32
5.49
3.78
7.78
4.26
6.88
4.07
3.04
4.21
0.01
3.17
26.47
23.83

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SUPPLIERS OF SOYBEAN VARIETIES TESTED IN 2000

SUPPLIER BRAND VARIETY
Clemson University
Soybean Breeding Program
Clemson, SC 29634
Public Musen, Dillon, SC 91-2007
Chemgro Seeds
P.O. Box 218
East Petersburg, PA 17520
Chemgro 4500 RR, 4888 RR
Monsanto
3100 Sycamore Rd.
Dekalb, IL 60115
Asgrow Dekalb AG3901, AG4101, AG4301, AG4403, AG4602, AG4902, AG5001, CX391,CX 444c RR, CX 480c RR, CX 520c RR, DKB 38-51, DKB 44-51
Delta-King
Featherstone Farms
13941 Genite Rd.
Amelia, Virginia 23002
Delta King DK4868, 4762RR, 5961 RR
Delta & Pine Land Co.
7265 Hwy 9 South
Centre, AL 35960
Deltapine Sure-Grow DP 3519S, DP4344, DP 4690,DP4748S, DP5354, DP 5644 RR, DP5655, DP5806 RR, SG498RR,
Garst Seed Co.
761 Walnut Lane, Suite 200
Memphis, TN 38018
Garst Agripro HY 574, AP 4602, AP 543 RR, AP 569 RR/N,D484RR/N, 529 RR, D472RR/N
Georgia Seed Develop. Comm.
2420 South Milledge Av.
Athens, GA 30605
Public Boggs
Hoffman Seeds
144 Main Street
Lancaster, PA. 17605-2400
Hoffman S46-W8,S42-M1, S46-G2
Illinois Foundation Seeds Inc.
P.O. Box 722
Champaign, Il. 61820
Public Iroquois, Macon, Probst
Montague Farms
Rt. 2 Box 6
Center Cross, Va. 22437
Montague MFS-553, MFS-591, AOBA
Md. Crop Improv. Assoc.
50 Harry S. Truman Pkwy.
Annapolis, MD 21401
Public Manokin, Md92-5769, Md 94-5332, Md94-5396, Md95-5260
Missouri Foundation Seed
3600 New Haven Road
Columbia, MS 65201
Public Anand, Delsoy 5500
N. C. Foundation Seed, Inc.
4025 Beryl Rd.
Raleigh, NC 27606
Public Graham, Prolina, Soyola, N94-552
Novartis Seeds Inc.
P.O. Box 249
Grifton, NC. 28530
NK NK S53-Q7, NK S59-V6, NK S60-E4, X053R, S57-A4
Ohio State University
Soybean Breeding Program
Wooster, OH 44691
Public Stressland, Croton 3.9
Pioneer Hi-Bred, Int'l, Inc.
435 E. Smith Ave.
Winterville, NC 28590
Pioneer 93B81, 93B82, 93B84 94B01, 94B45, 94B53, 9421, 9482, 9492, 95B32, 95B33, 95B53, 95B71, 9594, 95B95, 96B21,
Royster- Clark, INC.
70 N. Market St.
Mt Sterling, OH 43143
Vigoro V 410SCN, V492 NRR, V450NRR, V542NRR
Southern States Coop., Inc.
6606 West Broad Street
P. O. Box 26234
Richmond, VA 23260
Southern States HT-381-STS, FFR 439, FFR-493, XP RT 3799N,XP RT 5399, XP RT 5609, RT 386, RT 3975, RT 4098, RT446, RT-4495 N, RT 4980, RT 517, RT 557, RT 587, RT6299N, RT5999N, SS 3896STS, SS3971, SS4299N SS4483NSTS, SS597N, 5200-STS, RT447, RT-517, RT-540N, RT5485N, XP5409N, XP47576 STS, XP5709N
Terra International, Inc.
600 4th St, P. O. Box 6000
Sioux, City, IA 51102-6000
Terra TS 415
Va. Foundation Seed, Inc.
Box 78
Mt. Holly, VA 22524
Public Accomac, Hutcheson
VPI & SU, Agron. Dept.
Soybean Breeding Program
Agronomy Department
Blacksburg, VA 24061
Virginia Tech Breeding Lines V94-0552, V91-3036, V92-0254, V93-3114, V94-0198, V94-0436V94-3168, V943933, V94-1401, V95-0016, V95-0242, V96-0332, V96-2543, Essex -, Essex RSV1, Essex RSV1-N, Essex RSV 3, Essex RSV4, V114 RR, V220 RR
University Of Arkansas Public Caviness,Bolivar
University of Tennessee
Knoxville, TN 37901-1071
Public TN93-99, TN94-213, TN93-142-17, TN93-87
Unisouth Genetics Inc.
2640-c Nolensville Rd.
Nashville, TN. 37211
USG USG 7478N, USG 7489, USG 7509n, USG Exp 510, USG 7528, USG Exp 540, USG 7547RR, USG 7599n

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Disclaimer: Trade and brand names are used only for the purpose of information and the sponsors do not guarantee nor warrant the standards of the product, nor do they imply approval of the product to the exclusion of others which may also be suitable.

Virginia Cooperative Extension programs and employment are open to all, regardless of race, color, religion, sex, age, veteran status, national origin, disability, or political affiliation. An equal opportunity/affirmative action employer. Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U. S. Department of Agriculture cooperating. J. David Barrett, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; Lorenza W. Lyons, Administrator, 1890 Extension Programs, Virginia State, Petersburg.