Arkansas. Performance Tests 2001

Transcription

1 Arkansas Performance Tests 2001 D.G. Dombek D.K. Ahrent R.D. Bond I.L. Eldridge ARKANSAS AGRICULTURAL EXPERIMENT STATION Division of Agriculture University of Arkansas December 2001 Research Series 489

2 Technical editing and cover design by Cam Romund Arkansas Agricultural Experiment Station, University of Arkansas Division of Agriculture, Fayetteville. Milo J. Shult, Vice President for Agriculture and Director; Gregory J. Weidemann, interim dean, Dale Bumpers College of Agricultural, Food and Life Sciences and associate director, Arkansas Agricultural Experiment Station, Fayetteville. SG.929QX41. The Arkansas Agricultural Experiment Station follows a nondiscriminatory policy in programs and employment. ISSN: CODEN:AKAMA6

3 ARKANSAS SOYBEAN PERFORMANCE TESTS 2001 D.G. Dombek D.K. Ahrent R.D. Bond I.L. Eldridge 1 1 D.G. Dombek is a research associate and D.K. Ahrent, R.D. Bond, and I.L. Eldridge are research specialists in the Department of Crop, Soil & Environmental Sciences, University of Arkansas, Fayetteville, AR

4 ACKNOWLEDGMENTS This research was funded in part by participating companies and by a grant from the Arkansas Soybean Promotion Board. The contributions of the following individuals are gratefully acknowledged: Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville Ms. Marilyn McClelland, Research Associate-Weed Science Department of Plant Pathology, University of Arkansas, Fayetteville Dr. Bob Riggs, University Professor Dr. Bob Robbins, Professor Dr. John Rupe, Professor Ms. Carol Becton, Research Associate University of Arkansas Agricultural Research and Extension Center, Fayetteville Mr. J. V. Skinner, Center Director University of Arkansas Cooperative Extension Service, Little Rock Dr. Richard D. Cartwright, Extension Plant Pathologist School of Agriculture, Arkansas State University, Jonesboro Dr. J. D. Widick, Research Assistant Professor Mr. Joshua Dunn, Research Specialist Northeast Research and Extension Center, Keiser Dr. F. M. Bourland, Center Director Mr. Eddie Gordon, Research Specialist Cotton Branch Station, Marianna Mr. Claude Kennedy, Resident Director Mr. Dale Yadon, Research Specialist Southeast Research and Extension Center, Monticello Dr. Edwin A. Colburn, Center Director Mr. Larry Earnest, Superintendent, Rohwer Division Mr. Randy Cingolani, Research Specialist, Rohwer Division Rice Research and Extension Center, Stuttgart Dr. John Robinson, Center Director Mr. Jamie Branson, Research Specialist Mr. Ronnie Sherman, Research Specialist Southwest Research and Extension Center, Hope Dr. Mike Phillips, Center Director Dr. T. L. Kirkpatrick, Professor Mr. J. D. Barham, Research Specialist Vegetable Substation, Kibler Mr. Dennis Motes, Resident Director Mr. Steve Eaton, Research Associate Special thanks to Mr. Tracy McLelland for allowing us to conduct soybean performance tests on his farm. TECHNICAL ADVISORY COMMITTEE Dr. L. O. Ashlock Extension Agronomist - Soybeans, Cooperative Extensive Service Dr. R. K. Bacon Professor, Department of Crop, Soil and Environmental Sciences Dr. J. L. Barrentine Professor and Head, Department of Crop, Soil and Environmental Sciences Dr. F. M. Bourland Center Director and Professor, Northeast Research and Extension Center Dr. W. F. Johnson, Jr. Extension Agronomist - Wheat and Feed Grains, Cooperative Extension Service Dr. T. L. Kirkpatrick Professor, Southwest Research and Extension Center

5 CONTENTS Introduction... 7 Methods... 8 Table 1. Yields of Early Planted Soybean Cultivars at All Locations, Table 2. Performance of Nonirrigated Early Planted Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, Table 3. Performance of Irrigated Early Planted Soybean Cultivars, Tracy McLelland Farm, Clark County, AR, Table 4. Performance of Irrigated Early Planted Soybean Cultivars, Vegetable Substation, Kibler, AR, Table 5. Yields of Maturity Group IV, V, and VI Soybean Cultivars at All Locations, Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, Table 7. Performance of Nonirrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, Table 8. Performance of Irrigated Soybean Cultivars, Cotton Branch Station, Marianna, AR, Table 9. Performance of Nonirrigated Soybean Cultivars, Cotton Branch Station, Marianna, AR, Table 10. Performance of Irrigated Soybean Cultivars, Rice Research and Extension Center, Stuttgart, AR, Table 11. Performance of Irrigated Soybean Cultivars, Southeast Research and Extension Center, Rohwer Division, Rohwer, AR Table 12. Performance of Irrigated Soybean Cultivars, Tracy McLelland Farm, Clark County, AR, Table 13. Performance of Irrigated Soybean Cultivars in Double-Crop tests, Northeast Research and Extension Center, Keiser, AR, Table 14. Tolerance of Soybean Cultivars to Propanil Drift, Table 15. Results of Greenhouse Test for Soil Chloride Reaction, Participants and Entries 2001 Early Planted Tests...81 Participants and Entries 2001 Commercial Cultivar Tests...83 Location Map...(inside back cover) Page Cover illustration by Michael Halbert Arkansas Variety Testing Website Results of Arkansas variety performance tests for wheat and other small grains, rice, soybeans, cotton, corn and grain sorghum are available on the web at:

6 ARKANSAS SOYBEAN PERFORMANCE TESTS D.G. Dombek, D.K. Ahrent, R.D. Bond, and I.L. Eldridge INTRODUCTION Soybean cultivar performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies developing cultivars and/or marketing seed within the State, and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for soybean producers. The 2001 soybean cultivar performance tests were conducted at the Northeast Research and Extension Center (NEREC) at Keiser, the Cotton Branch Station (CBS) near Marianna, the Rice Research and Extension Center (RREC) near Stuttgart, the Southeast Research and Extension Center - Rohwer Division (SEREC-RD) near Rohwer, the Tracy McLelland Farm (TMF) near Gum Springs, and the Vegetable Substation (VSS) near Kibler. A test location map can be found inside the back cover. METHODS Soybean cultivars were entered by commercial seed companies and state and federal institutions. Recommended cultural practices were used at each location and all data were taken from a uniform set of instructions. Cultivars were grouped by maturity groups based on information provided by the originating company or institution. To facilitate field operations, and to allow for fairer comparisons between cultivars, entries in the Group IV and V Commercial Cultivar Tests (CCT) were separated into "early" cultivars and "late" cultivars. Cultivars in the "early" Group IV test had a relative maturity range of 4.0 to 4.7 and in the Group V test, a range of 5.0 to 5.6. Cultivars in the "late" Group IV test had a relative maturity range of 4.8 or 4.9 and in the "late" Group V test, a range of 5.7 to 5.9. Early planted tests (EPT) were established at NEREC, SEBS, TMF, and VSS. As with the CCT IVs and Vs, entries in the EPT were subdivided into "early" and "late" cultivars. Within each test, entries were arranged as a randomized complete block design with three replications. Plots in all tests were 4 or 5 rows wide depending on between-row spacing and 20 feet in length. Seeds were packaged for recommended planting rates and were planted with a cone planter. Specific location and cultural practice information accompanies each table. Interior rows of each plot were harvested for yield determination after ends were trimmed. Percent moisture was recorded for all harvested seed of early-planted tests and plot weights were adjusted to thirteen percent moisture. Harvested seeds of all other tests were allowed to dry to uniform moisture before weighing, and weights were converted to yield in bushels per acre (bu/a). Plots were visually rated for shattering and lodging. Shattering ratings were carried out on border rows according to the following scale: 1. No shattering % shattered % shattered % shattered 5. 20% or more shattered Lodging ratings were recorded on a scale from 1 to 5 based on the following criteria: 1. Almost all plants erect 2. Either all plants leaning slightly, or a few plants down 3. Either all plants leaning moderately, or 25-50% of the plants down 4. Either all plants leaning considerably, or 50-80% of the plants down 5. All plants down badly Average plant height was recorded in inches for each plot. 1 Use of products and trade names in this report does not constitute a guarantee or warranty of the products named and does not signify that those products are approved to the exclusion of comparable products. AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 7

7 Tests were established at the Main Experiment Station at Fayetteville on a Taloka silt loam soil to evaluate cultivar sensitivity to the herbicide propanil. Propanil was applied overthe-top of one-half of each plot at 0.75 lb active ingredient/a (0.25X recommended rate) when plants were in the V4 to V5 growth stage to simulate drift from rice fields. Plots were visually rated 7 and 21 days after propanil application by Marilyn McClelland. Cultivars were screened for tolerance to soil chloride in greenhouse tests conducted by Dr. J.D. Widick, ASU, Jonesboro. 8 AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program.

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10 Table 1. Yields of Early Planted Soybean Cultivars at All Locations, ,2. Keiser Clark Co. Kibler Brand/Cultivar Nonirr. Irr Irr. Average Early Maturing Cultivars (RM 4.7 or Less) Armor 42L Armor 44R Armor 47-G ASGROW AG ASGROW AG ASGROW AG ASGROW AG ASGROW AG Croplan Genetics RC Croplan Genetics RC Croplan Genetics RC Croplan Genetics RT Delta King 3862RR Delta King 3961RR Delta King 3964RR Delta King 3968RR Delta King 4461RR Delta King Delta King Delta King 4762 RR Delta King 4763RR Deltapine DP 4344RR Deltapine DP 4690RR Deltapine DP 4748S Hartz H4554RR Hartz HX Hartz HX HBK HBK R HBK SB3980RR HBK XR Pioneer 93B Pioneer 94B Pioneer 94B SS-RT SS-RT SS-RT 446N Syngenta S39-Q Syngenta S46-G Terral TV4589RR Williams Grand mean LSD (5%) C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 9

11 Table 1. Yields of Early Planted Soybean Cultivars at All Locations, ,2,, Continued. Keiser Clark Co. Kibler Brand/Cultivar Nonirr. Irr Irr. Average Late Maturing Cultivars (RM 4.8 to 5.3) ASGROW AG ASGROW AG Croplan Genetics 480RR Croplan Genetics RC Croplan Genetics YRC Delta King 4868RR Delta King 4965 RR Delta King 5267RR Delta King 5366RR Delta King XTJ 184RR Deltapine DP 5110S Deltapine SG 498RR Dixie 4803RR DT FFR 4900RR Hartz H4884RR Hartz H5231RR HBK R Manokin Morsoy RT Morsoy RT Pioneer Prairie RRI Progeny 4858RR Progeny Progeny 5120N SS-RT SS-RT 5001N Syngenta S52-U Terral TV4886RR Terral TV4890RR Grand mean LSD (5%) C.V. (%) Keiser Nonirr. = Northeast Research and Extension Center Clark Co. Irr. = Tracy McLelland Farm, Clark County Kibler Irr. = Vegetable Substation 2 Irrigated and nonirrigated early planted soybean tests were planted at the Southeast Research and Extension Center- Rohwer Division. A severe hail storm on May 27 caused extensive damage to these tests and they were subsequently abandoned. AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 10

12 Table 2. Performance of Nonirrigated Early Planted Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Early Maturing Cultivars (RM 4.7 or Less) Pioneer 94B Croplan Genetics RC Delta King Delta King 3964RR ASGROW AG Croplan Genetics RT Hartz HX HBK Syngenta S46-G Pioneer 94B Armor 47-G HBK SB3980RR HBK XR Delta King 3862RR Armor 44R ASGROW AG SS-RT 446N Hartz HX Delta King 3961RR Delta King 3968RR Deltapine DP 4748S Terral TV4589RR Delta King Croplan Genetics RC Delta King 4763RR ASGROW AG Williams Deltapine DP 4344RR Croplan Genetics RC Deltapine DP 4690RR ASGROW AG Syngenta S39-Q ASGROW AG SS-RT Delta King 4461RR Hartz H4554RR Armor 42L SS-RT Delta King 4762 RR HBK R Pioneer 93B Grand mean LSD (5%) C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 11

13 Table 2. Performance of Nonirrigated Early Planted Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Late Maturing Cultivars (RM 4.8 to 5.3) Morsoy RT Pioneer SS-RT Croplan Genetics 480RR Progeny 4858RR Manokin Terral TV4890RR Delta King XTJ 184RR Delta King 4868RR Deltapine SG 498RR HBK R Dixie 4803RR Delta King 4965 RR Hartz H4884RR Deltapine DP 5110S Progeny Delta King 5267RR ASGROW AG Terral TV4886RR ASGROW AG DT Croplan Genetics RC Morsoy RT SS-RT 5001N FFR 4900RR Delta King 5366RR Hartz H5231RR Syngenta S52-U Progeny 5120N Prairie RRI Croplan Genetics YRC Grand mean LSD (5%) ns C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 12

14 Table 2. Performance of Nonirrigated Early Planted Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued. Soil Series... Commerce silt loam Previous Crop... Soybean Row Width inches Fertilizer Applied... None Lime Applied... None Planting Date Herbicide Application... 3 pts./a Squadron + 1 pt./a Prowl, , 1.5 pts./a Reflex + 6 oz./a Select, Irrigation Dates... None Harvest Date... Early maturing cultivars: , , , Late maturing cultivars: , , Precipitation (inches) April May June July August September October Total Average Departure AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 13

15 Table 3. Performance of Irrigated Early Planted Soybean Cultivars, McLelland Farm, Clark County, AR, Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Date Score Score Ht(in) Early Maturing Cultivars (RM 4.7 or Less) HBK Croplan Genetics RC Delta King Delta King HBK XR Pioneer 94B ASGROW AG Deltapine DP 4690RR ASGROW AG Delta King 4461RR Armor 47-G Delta King 4763RR Deltapine DP 4748S Terral TV4589RR Armor 44R Hartz HX Pioneer 94B Williams Deltapine DP 4344RR Delta King 4762 RR HBK R Hartz H4554RR SS-RT ASGROW AG Delta King 3964RR Delta King 3968RR Delta King 3961RR Syngenta S46-G ASGROW AG Croplan Genetics RT SS-RT HBK SB3980RR ASGROW AG Croplan Genetics RC SS-RT 446N Armor 42L Syngenta S39-Q Pioneer 93B Hartz HX Croplan Genetics RC Delta King 3862RR Grand mean LSD (5%) C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 14

16 Table 3. Performance of Irrigated Early Planted Soybean Cultivars, McLelland Farm, Clark County, AR, , Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Late Maturing Cultivars (RM 4.8 to 5.3) Progeny 5120N Croplan Genetics YRC Morsoy RT Pioneer Croplan Genetics RC Manokin Hartz H5231RR SS-RT 5001N FFR 4900RR Terral TV4890RR Syngenta S52-U Delta King 5267RR HBK R ASGROW AG DT Deltapine DP 5110S Delta King 5366RR Dixie 4803RR Delta King XTJ 184RR SS-RT Delta King 4965 RR Deltapine SG 498RR ASGROW AG Terral TV4886RR Hartz H4884RR Delta King 4868RR Croplan Genetics 480RR Progeny 4858RR Prairie RRI Morsoy RT Progeny Grand mean LSD (5%) ns 4 C.V. (%) Two year averages for early maturing cultvars are from 1999 and 2001 (no data reported for 2000). Soil Series... Marietta fine sandy loam Previous Crop... Soybean Row Width inches Fertilizer Applied... None Lime Applied... None Planting Date Herbicide Application pts./a Dual Magnum oz./a Scepter 70DF, pts./a Basagran pt/a Blazer, Irrigation Dates , Harvest Date... Early maturing cultivars: , Late maturing cultivars: , AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 15

17 Table 4. Performance of Irrigated Early Planted Soybean Cultivars, Kibler, AR, Maturity Lodging Shatter Plant Brand/Cultivar bu/a Date Score Score Ht(in) Early Maturing Cultivars (RM 4.7 or Less) SS-RT Delta King 4763RR Armor 47-G Terral TV4589RR HBK XR Armor 44R Deltapine DP 4748S Hartz H4554RR Delta King 4461RR ASGROW AG Pioneer 94B Croplan Genetics RC ASGROW AG Hartz HX ASGROW AG Delta King 3862RR Syngenta S46-G Syngenta S39-Q HBK SB3980RR Croplan Genetics RT HBK ASGROW AG Delta King Delta King 3968RR SS-RT 446N Croplan Genetics RC Croplan Genetics RC Pioneer 93B SS-RT Deltapine DP 4690RR Pioneer 94B Delta King Hartz HX HBK R Armor 42L Williams Delta King 4762 RR Delta King 3961RR Delta King 3964RR Deltapine DP 4344RR ASGROW AG Grand mean LSD (5%) C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 16

18 Table 4. Performance of Irrigated Early Planted Soybean Cultivars, Kibler, AR, 2001, Continued Maturity Lodging Shatter Plant Brand/Cultivar bu/a Date Score Score Ht(in) Late Maturing Cultivars (RM 4.8 to 5.3) Delta King 4868RR Delta King 4965 RR Deltapine SG 498RR HBK R Pioneer ASGROW AG ASGROW AG Manokin Morsoy RT Morsoy RT Deltapine DP 5110S DT Progeny 5120N Dixie 4803RR Terral TV4886RR SS-RT 5001N SS-RT Terral TV4890RR Croplan Genetics YRC Croplan Genetics RC Progeny 4858RR Delta King XTJ 184RR Hartz H4884RR Progeny Syngenta S52-U Croplan Genetics 480RR Delta King 5366RR Hartz H5231RR FFR 4900RR Delta King 5267RR Prairie RRI Grand mean LSD (5%) C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 17

19 Table 4. Performance of Irrigated Early Planted Soybean Cultivars, Kibler, AR, , Continued. Soil Series... Dardanelle silt loam Previous Crop... Fallow Row Width inches Fertilizer Applied... None Lime Applied... None Planting Date Herbicide Application... 1 pt./a Treflan + 40 g/a Pursuit, Irrigation Dates , , , , , , , , , , , Harvest Date... Early maturing cultivars: Late maturing cultivars: Precipitation (inches) April May June July August September Total Average Departure There were no data reported for 1999 and 2000, therefore two- and three-year averages are not reported. 2 An average of 0.57 inches of water was applied with an overhead sprinkler at each date. AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 18

20 Table 5. Yields of Maturity Groups IV, V, & VI Soybean Cultivars at All Locations, Keiser Keiser Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Irr. Irr. Irr. Avg. Maturity Group IV Early Maturing Cultivars (RM 4.7 or Less) AgriPro/Garst 4501RR/N 48.6 * * * 52.6 * * AgriPro/Garst 4512RRN 61.2 * * * 55.6 * * Armor 42-L Armor 44-R Armor 47-G ASGROW A ASGROW AG ASGROW AG ASGROW AG Delta King 3862RR Delta King 3961RR Delta King 3964RR Delta King 3968RR Delta King 4461RR Delta King Delta King Delta King 4762RR Delta King 4763RR Deltapine 4344RR Deltapine 4748S Deltapine DP4690RR Deltapine DPX4300RR Dixie Dyna-Gro 3443NRR Dyna-Gro 3468NRR Hartz H4554RR HBK HBK R HBK R MPV 457NRR Syngenta S46-G Terral TV4589RR Vigoro V462NRS Willcross RR2569N 50.2 * * * 59.7 * * Grand mean LSD (5%) * C.V. (%) * AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 19

21 Table 5. Yields of Maturity Group IV, V, & VI Soybean Cultivars at All Locations, , Continued. Keiser Keiser Marianna Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Nonirr. Irr. Irr. Irr. Avg. Maturity Group IV Late Maturing Cultivars (RM 4.8 or 4.9) AgriPro AP 4888 RR ASGROW AG Croplan Genetics 480RR Croplan Genetics RC Delta Grow 4850RR Delta Grow 4950RR Delta King 4868RR Delta King 4965 RR Delta King XTJ184RR Delta King XTJ201RR Deltapine DPX 4885RR Deltapine SG 498RR Dixie 4803RR DT * * * * 57.5 * * Dyna-Gro 3484NRR EKXP ES Prairie RRI FFR 4900RR Hartz H4884RR HBK R HBK R Manokin Md MFA Morsoy RT Pioneer Variety Progeny 4858RR Progeny 4901RR Progeny S RR 40.4 * * * * 49.4 * * Southern States RT Terral TV Terral TV4886RR Terral TV4890RR Terral TV Triumph TR4810RR USG 7489RR Grand mean LSD (5%) * C.V. (%) * AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 20

22 Table 5. Yields of Maturity Groups IV, V, & VI Soybean Cultivars at All Locations, , Continued. Keiser Keiser Marianna Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Nonirr. Irr. Irr. Irr. Avg. Maturity Group V Early Maturing Cultivars (RM 5.6 or Less) Accomac AgriPro/Garst 5512RRN Anand Armor 52-C Armor 53-K Armor 54-Z Armor 56-J ASGROW AG ASGROW AG ASGROW AG ASGROW AG Caviness Croplan Genetics RC Croplan Genetics RC Croplan Genetics YRC Croplan Genetics YRC Delsoy Delta Grow 5250RR Delta Grow 5450RR Delta Grow 5600RR Delta Grow 5630RR Delta King 5366RR Delta King 5465RR Delta King 5661RR Delta King 5668RR Delta King XTJ202RR Delta King XTJ203RR Delta King XTJ204RR Delta King XTJ205RR Deltapine DP5644RR Deltapine DP5110S Deltapine DP5414RR Dyna-Gro 3521NRR Dyna-Gro 3535NRR Dyna-Gro 3562NRR Dyna-Gro 3518NRR Dyna-Gro 3543NRR ES Punch RR ES Ranger RR Hartz H5231RR Hartz H5444RR HBK R HBK R HBK R HBK X * * * 53.5 * * AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 21

23 Table 5. Yields of Maturity Groups IV, V, & VI Soybean Cultivars at All Locations, , Continued. Keiser Keiser Marianna Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Nonirr. Irr. Irr. Irr. Avg. Maturity Group V Early Maturing Cultivars (RM 5.6 or Less) Continued Hutcheson Morsoy RT5110N Morsoy RT5440N Morsoy RT5620N Pioneer Brand 95B Pioneer Brand 95B Progeny 5120N Progeny 5410RR Progeny 5415RR Progeny 5585RR Progeny Progeny 5660RR R S RR * * * 56.4 * * S RR * * * 53.9 * * Southern States SS5200STS Southern States SSRT5001N Southern States RT557N Southern States SSRT517N Terral TV52R Terral TV5486RR Terral TV5666RR Terral TVX54R Terral TVX56R Terral TVX5R Terral TVX5R TN USG 510NRR USG 540NRR Vigoro V552NRR Willcross RR2517N * * * 52.4 * * Willcross RR2520N * * * 51.1 * * Willcross RR2549N * * * 50.9 * * Grand Mean LSD (5%) C.V. (%) Maturity Group V Late Maturing Cultivars (RM 5.7 to 5.9) Armor 59-B ASGROW A ASGROW AG ASGROW AG ASGROW AG AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 22

24 Table 5. Yields of Maturity Groups IV, V, & VI Soybean Cultivars at All Locations, , Continued. Keiser Keiser Marianna Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Nonirr. Irr. Irr. Irr. Avg. Maturity Group V Late Maturing Cultivars (RM 5.7 to 5.9) Continued Bolivar Croplan Genetics 590RR Croplan Genetics YRC Croplan Genetics YRC Delsoy Delta Grow 5950RR Delta King 5762RR Delta King Delta King 5961RR Delta King Deltapine DP5806RR Deltapine DP5915RR Deltapine DP DT * * -- * 54.3 * * Dyna-Gro 3582NRR ES Marshal RR ES Trooper RR Hartz H5885RR HBK HBK HBK HBK * * -- * 54.8 * * HBK R HBK R Morsoy RT5900N Pioneer 95B Pioneer 95B Pioneer Brand Pioneer Brand 95B Progeny 5900RR R Southern States 597N Southern States RT5999N Syngenta S57-A Syngenta S58-R Syngenta S59-V Terral TV Terral TV59R Terral TV59R Terral TVX58R Terral TVX5R Terral TVX5R UARK UARK AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 23

25 Table 5. Yields of Maturity Groups IV, V, & VI Soybean Cultivars at All Locations, , Continued. Keiser Keiser Marianna Marianna Stuttgart Rohwer Clark Co. Brand/Hybrid Irr. Nonirr. Irr. Nonirr. Irr. Irr. Irr. Avg. Maturity Group V Late Maturing Cultivars (RM 5.7 to 5.9) Continued USG Exp V Willcross RR2580N 53.7 * * -- * 56.7 * * Willcross RR2590NSTS 61.8 * * -- * 47.4 * * Grand Mean LSD (5%) C.V. (%) Maturity Group VI AgriPro/Garst 6612RRN * 51.4 * * AgriPro/Garst XR0162N * 53.9 * * ASGROW AG Dillon Dyna-Gro 3600NRR HBK R Pioneer Brand 96B21RR R Vigoro V622NRR * 54.6 * * Grand mean LSD (5%) C.V. (%) Because of hot and dry conditions, resulting in reduced yields and poor uniformity, the nonirrigated MG5 Early and MG6 tests at Keiser, the irrigated MG6 at Marianna, and the nonirrigated MG4 early, MG5 Late and MG6 tests at Marianna will not be reported. -- = These tests are not reported due to reduced yields and poor uniformity. * = Strains, tested only in Keiser Irrigated and Rohwer Irrigated tests. AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 24

26 Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Maturity Group IV Early Maturing Cultivars (RM 4.7 or Less) Dyna-Gro 3443NRR Delta King 4763RR Delta King 4461RR AgriPro/Garst 4512RRN ASGROW AG Armor 44-R Deltapine DPX4300RR Delta King 3968RR Deltapine 4748S Hartz H4554RR HBK R ASGROW A HBK Terral TV4589RR Armor 47-G ASGROW AG ASGROW AG MPV 457NRR Delta King Delta King 3964RR Dyna-Gro 3468NRR Delta King 4762 RR Delta King 3862RR Armor 42-L Deltapine DP4690RR Syngenta S46-G Vigoro V462NRS Willcross RR2569N Delta King Delta King 3961RR Dixie HBK R AgriPro/Garst 4501RR/N Deltapine 4344RR Grand mean LSD (5%) ns 1.1 ns. C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 25

27 Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Maturity Group IVLate Maturing Cultivars (RM 4.8 or 4.9) Delta King 4868RR MFA Morsoy RT ASGROW AG Triumph TR4810RR Delta King XTJ201RR DT Terral TV Pioneer Variety Md Hartz H4884RR Dyna-Gro 3484NRR Progeny Progeny 4901RR HBK R Progeny 4858RR Delta Grow 4850RR Delta King XTJ184RR Southern States RT Manokin Croplan Genetics 480RR Deltapine DPX 4885RR FFR 4900RR Terral TV4890RR Terral TV4886RR Delta Grow 4950RR Dixie 4803RR Croplan Genetics RC USG 7489RR Delta King 4965RR Terral TV Deltapine SG 498RR AgriPro AP 4888 RR ES Prairie RRI EKXP S RR HBK R Grand mean LSD (5%) ns 0.8 ns. C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 26

28 Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Maturity Group V Early Maturing Cultivars (RM 5.6 or Less) Delta King XTJ202RR Anand Delta King 5366RR Armor 56-J TN Pioneer Brand 95B Dyna-Gro 3535NRR HBK R R Hartz H5231RR Delta King XTJ203RR Terral TVX56R Hartz H5444RR Armor 52-C Progeny 5660RR Deltapine DP5110S Dyna-Gro 3562NRR Delta King XTJ205RR Delta King 5661RR Armor 54-Z ASGROW AG Armor 53-K Morsoy RT5440N Deltapine DP5644RR Delta Grow 5450RR Croplan Genetics RC Delta King XTJ204RR Terral TVX5R Delta King 5668RR Willcross RR2520N USG 540NRR Delta Grow 5250RR Caviness ASGROW AG USG 510NRR Dyna-Gro 3521NRR HBK R Hutcheson Croplan Genetics RC Delta Grow 5630RR Terral TVX54R Pioneer Brand 95B Progeny HBK X Delta King 5465RR AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 27

29 Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Maturity Group V Early Maturing Cultivars (RM 5.6 or Less) Continued Progeny 5415RR Vigoro V552NRR Dyna-Gro 3543NRR ASGROW AG Morsoy RT5110N AgriPro/Garst 5512RRN Morsoy RT5620N ASGROW AG Terral TV5486RR Terral TVX5R HBK R Progeny 5585RR Willcross RR2517N Croplan Genetics YRC Accomac Deltapine DP5414RR Delsoy ES Punch RR Delta Grow 5600RR Southern States RT557N Terral TV52R Terral TV5666RR S RR Progeny 5120N Dyna-Gro 3518NRR ES Ranger RR Southern States SSRT5001N S RR Willcross RR2549N Progeny 5410RR Southern States SSRT517N Croplan Genetics YRC Southern States SS5200STS Grand mean LSD (5%) ns 0.7 ns. C.V. (%) AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 28

30 Table 6. Performance of Irrigated Soybean Cultivars, Northeast Research and Extension Center, Keiser, AR, 2001, Continued Year 3-Year Maturity Lodging Shatter Plant Brand/Cultivar bu/a Avg. Avg. Date Score Score Ht(in) Maturity Group V Late Maturing Cultivars (RM 5.7 to 5.9) Delta King Willcross RR2590NSTS Deltapine DP5915RR Pioneer 95B Pioneer 95B USG Exp Pioneer Brand HBK Delta King 5762RR Morsoy RT5900N Pioneer Brand 95B Terral TVX5R UARK Dyna-Gro 3582NRR Southern States 597N ASGROW A HBK Progeny 5900RR Croplan Genetics YRC DT Delta King Syngenta S59-V Syngenta S58-R Willcross RR2580N Terral TV59R ASGROW AG Terral TVX58R HBK R UARK Deltapine DP5806RR HBK R Hartz H5885RR Delta Grow 5950RR ASGROW AG HBK Croplan Genetics 590RR Bolivar Terral TVX5R HBK R Deltapine DP Southern States RT5999N Syngenta S57-A ES Marshal RR V AAES Research Series 489. University of Arkansas, Division of Agriculture, Variety Testing Program. 29