Grain Sorghum Missouri Crop Performance

Transcription

1 Grain Sorghum 2007 Missouri Crop Performance Wiebold, Mason, Knerr, Hasty, Belt, Schwab, Burdick, Angotti Agriculture Experiment Station - College of Agriculture, Food & Natural Resources - University of Missouri-Columbia Special Report 57 - November 2007

2 Table of Contents Comparing Hybrids... 2 The Authors... 2 Acknowledgments... 2 Experimental Procedures... 3 Entries Plot Management Data Recorded Accessibility of Data Field Plot Design Locations... 3 Central/West Region Central/West Region Crop Management Summary (Table )... 4 Standard Grain Sorghum Test Mooresville (Table 2)... 5 Macon (Table 3)... Columbia (Table 4)... 7 Hughesville (Table 5)... 8 Summary of Central/West Locations (Table )... 9 Southeast Region Southeast Region Crop Management Summary (Table 7)... 0 Standard Grain Sorghum Test Bertrand (Table 8)... Portageville Loam (Table 9)... 2 Summary of Southeast Locations (Table 0)... 3 Characteristics and Table Numbers for Grain Sorghum Hybrids... 4 Sources for Grain Sorghum Hybrids... 5

3 Missouri 2007 Grain Sorghum Performance Tests This report is a contribution of the Division of Plant Sciences, University of Missouri College of Agriculture, Food and Natural Resources. The work was supported by fees paid by the companies submitting hybrids for evaluation. The University of Missouri began its performance testing program for grain sorghum hybrids in 958. The number of commercial entries in the program increased from 40 in 958 to 34 in 982. The number has declined during recent years to 32 hybrids in To select a commercial hybrid intelligently, producers need a reliable, unbiased, up-to-date source of information that will permit valid comparisons among available hybrids. The objective of the University of Missouri's performance testing program is to provide this information. The tests are conducted under as uniform conditions as possible. Small plots are used to reduce the chance of soil and climatic variations occurring from one plot to another. Results obtained should aid the individual grower in judging the relative merits of many of the commercial grain sorghum hybrids available in Missouri today. Comparing Hybrids The performance of a hybrid cannot be measured with absolute precision. Uncontrollable variability is involved in the determination of each yield average. This variability sometimes occurs because the soil is not uniform, but many other conditions may contribute to it. Because variability exists in all field experimentation, statistics are used as a tool to assist in making decisions. The statistical tool used in these tests is the test of least significant difference (LSD). The LSD is quite simple to apply. When two entries are compared and the difference between them is greater than the LSD, the entries are judged to be significantly different. Differences smaller than the LSD may have occurred by chance and are judged to be not significant. Hybrid performance may seem inconsistent from location to location and from year to year because of differences in rainfall, temperature, soil fertility, diseases, insects, and other factors. To obtain an improved estimate of relative hybrid performance, results from more than one location or year should be considered. In this publication, the authors have tried to facilitate comparisons across years and locations. In each test, the "top yielding" hybrids have been identified. These hybrids are those that did not yield significantly less than the highest yielding hybrid in the test. They are denoted in the tables by an asterisk (*) next to their yields. Thus, by going down a column, readers can readily identify the highest yielding hybrids in a test. By following a row across the table, readers can evaluate the relative performance of a hybrid during several years or at several locations. From the standpoint of yield, the most desirable hybrids will be those that are among the "top yielding" hybrids (that is, those that have an asterisk) the greatest number of times. Although yield usually receives first consideration, other agronomic characteristics may be equally important when selecting a grain sorghum hybrid. Moisture content at harvest, stalk strength and resistance to insects and diseases are among the hybrid characteristics that deserve careful consideration. High moisture content at harvest, whether due to later maturity or slow dry-down, may indicate an increased drying requirement. Poor stalk strength or susceptibility to pests may decrease harvestable yield because of lodging or stand loss. Therefore, when selecting a hybrid, producers should also consider the data presented on agronomic characteristics other than yield. The Missouri Variety Testing Program does not recommend specific hybrids. Farmers growing a new hybrid for the first time should consider the information contained in this report and then grow a small acreage to determine adaptability. This should be the practice for all new hybrids regardless of origin. The Authors William J. Wiebold is a Professor of Plant Sciences and State Extension Specialist; Howard L. Mason and Travis Belt are Research Associates; Delbert Knerr, Richard W. Hasty, David M. Schwab, and Jeremy Angotti are Research Specialists and Bruce Burdick is the Superintendent of the Hundley-Whaley Research Center. Acknowledgments The authors recognize and express their appreciation to the following individuals for their part in making the 2007 grain sorghum performance tests possible: Bud and Ron Beetsma, Mooresville; Bill Cason, Macon; Tim Reinbott, Superintendent, Bradford Research & Extension Center, Columbia; Kenny Tevis, Hughesville; Mike Honey, Webb City; Charles & Dale Glenn, Bertrand; and Jake Fisher, Superintendent, Delta Research Center, Portageville. 2

4 Experimental Procedures Entries: All producers of hybrid seed were eligible to enter hybrids in the 2007 evaluation tests. Participation was voluntary. The testing coordinator exercised no control over which hybrids or how many hybrids were entered. However, to help finance the evaluation program, a fee of $00 per location was charged for each hybrid entered by the seed producer. Plot Management: The test plots were planted and harvested with equipment designed for small-plot work. Row spacing for grain sorghum tests in the Central/West Region was 5 inches. Row spacing for grain sorghum tests in the Southeast Region was 30 inches. Seeding rate for the 5 and 30 inch row spacing was 22,000 seeds/acre. Fertilizer was applied at each site at the discretion of the farmer. Herbicides were used for weed control and plots were hand weeded as necessary. Management details varied from location to location and are specified in the regional crop management summaries. Data Recorded: Agronomic characteristics were evaluated at harvest. Lodging was taken immediately before harvest. Interpretation of the scale is as follows: = all plants erect, 3 = all plants leaning moderately or 20% to 50% down, 5 = all plants down. Yield is measured in bushels (5 pounds) per acre at a moisture content of 4.0 percent. An electronic moisture tester is used for all moisture readings. Accessibility of Data: The results of the 2007 crop performance tests are also available online at: agebb.missouri.edu/cropperf/vartest. If you need assistance in accessing the system; call for help. Field Plot Design: Statistical designs used to analyze the field data included randomized lattice with 3 replications and randomized complete block with four replications, depending on the size of the test. Individual plots were four rows wide. Row length was 25 feet for both 5 and 30 inch row spacing. All four rows of each plot were harvested for the 5 inch row spacing test and only the center two rows of each plot were harvested for the 30 inch row spacing to determine yield. Locations On the basis of geographical characteristics, the state is divided into regions. Grain sorghum hybrid evaluation tests are located in the Central/West Region and Southeast Region of the state. In 2007, the locations for these tests were as follows: Central/West. Beetsma farm, Mooresville (Livingston Co.) 2. Bill Cason farm, Macon (Macon Co.) 3. Bradford Research & Ext. Center, Columbia (Boone Co.) 4. Kenny Tevis farm, Hughesville (Pettis Co.) 5. Mike Honey farm, Webb City (Jasper Co.) Southeast. Glenn farm, Bertrand (Mississippi Co.) 7. Delta Research Center (Clay and Loam), Portageville (Pemiscot Co.)

5 Central/West Crop Management Summary There are five locations in the Central/West Region for the Grain Sorghum Test. They are located in counties where a significant number of acres of grain sorghum are grown according to the Missouri Agricultural Statistics Service. Cultural practices vary slightly between locations, but tend to reflect those followed by farmers in the area. The Webb City location was not planted this spring because of non-stop rain that continued well into July. Jasper County recorded 30.4 rainfall for the months of May September, which is 7.8 above normal for the period. Yields at the other four locations were average or below average, partly because of poor stands and increased lodging. Climatological information for the growing season (May September 30) for the Central/West Region is summarized below and cultural practices for each site are listed in Table. Average temperature = 73.7 degrees,.7 degrees above normal Average precipitation = 9.,.5 below normal Table. Central/West Region Crop Management Summary Planting Harvest Herbicide Location date date N P 2 O 5 K 2 O Tillage Pre Post Standard Grain Sorghum Tests Mooresville Conventional Bicep II Magnum None Macon Minimum Dual II Magnum, Atrazine None Columbia No-Till Dual II Magnum, Atrazine, Roundup WeatherMax Buctril Hughesville Conventional Guardsman None 4

6 TABLE 2. Standard Grain Sorghum Test Central/West Region: Mooresville, MO (Livingston County) Soil Type: Grundy Silt Loam Soil Test: ph=.0, OM=2.%, P=78, K=520 Rainfall: May=.3, June=2., July=2.4, Aug.=.0, Sept.=2.4 Total=9.7 in Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre Pioneer 85Y40, 5, ** 2.7* 30.8 Dyna-Gro GX ** Pioneer 84G2 NC+ 7R34, 5, 7 2, * 34.4* 2.2* NC+ 7B5 2, * 2.9** 29.4 Dyna-Gro 772B * DEKALB DKS53-7 3, * DEKALB DKS54-00 Dyna-Gro 75B 3, * 27. Garst Dyna-Gro GX DEKALB DKS3-3, Dyna-Gro GX0750 Dyna-Gro GX DEKALB DKS , Dyna-Gro 74B DEKALB DKS , DEKALB DK44 3, TEST AVERAGE L.S.D. AT.0 NS 9.0. C.V. % ** Data not available. Highest yielding hybrid in the test. NS Not Significant * + Hybrid which did not yield significantly less than the highest yielding hybrid in the test. Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil) 5

7 TABLE 3. Standard Grain Sorghum Test Central/West Region: Macon, MO (Macon County) Soil Type: Mexico Silt Loam Soil Test: ph=5.8, OM=.%, P=38, K=50 Rainfall: May=4., June=3.4, July=.0, Aug.=5., Sept.=.8 Total=5.9 in Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre DEKALB DKS53-7 3, ** Pioneer 84G2, 5, * 28.8* 3.7 DEKALB DKS42-20 Dyna-Gro GX0750 3, * 28.2* NC+ 7R34 2, * DEKALB DKS , * Dyna-Gro GX * Dyna-Gro 75B Garst * 24.* Pioneer 85Y40, 5, * 29.** 2. NC+ 7B5 2, Dyna-Gro 772B DEKALB DKS3- Dyna-Gro GX070 3, Dyna-Gro GX DEKALB DK44 3, DEKALB DKS , Dyna-Gro 74B TEST AVERAGE L.S.D. AT C.V. % ** Data not available. Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. + Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil)

8 TABLE 4. Standard Grain Sorghum Test Central/West Region: Columbia, MO (Boone County) Soil Type: Mexico Silt Loam Soil Test: ph=5.8, OM=2.3%, P=2, K=384 Rainfall: May=3.4, June=3.0, July=2.0, Aug.=., Sept.=.5 Total=.5 in Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre Pioneer 84G2, 5, ** 27.7** 3. NC+ 7R34 2, * 27.5* 3. DEKALB DKS53-7 Pioneer 85Y40 3,, 5, * 38.4* 9.8* 29. Dyna-Gro 772B * NC+ 7B5 2, * DEKALB DKS ,.3 35.* 24.0* 29.8 Dyna-Gro GX0750 Dyna-Gro GX * 33.* Garst * DEKALB DKS , Dyna-Gro GX Dyna-Gro GX070 DEKALB DKS , Dyna-Gro 75B DEKALB DKS3-3, Dyna-Gro 74B DEKALB DK44 3, TEST AVERAGE L.S.D. AT C.V. % ** Data not available. Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. + Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil) 7

9 TABLE 5. Standard Grain Sorghum Test Central/West Region: Hughesville, MO (Pettis County) Soil Type: Arispe Silt Loam Soil Test: ph=5.7, OM=2.5%, P=20, K=378 Rainfall: May=7.2, June=7.7, July=.0, Aug.=.3, Sept.=2. Total= Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre NC+ 7R34 2, ** DEKALB DKS53-7 3, Dyna-Gro GX070 DEKALB DK44 3, Dyna-Gro GX Dyna-Gro GX DEKALB DKS3-3, Dyna-Gro GX030 Dyna-Gro 772B DEKALB DKS , Garst DEKALB DKS , Dyna-Gro 74B NC+ 7B5 2, DEKALB DKS , Pioneer 84G2, 5, ** 3.9 Pioneer 85Y40, 5, Dyna-Gro 75B TEST AVERAGE L.S.D. AT C.V. % ** Data not available. Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. + Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil) 8

10 TABLE. Performance of Standard Hybrids evaluated at Four Central/West Missouri locations (Mooresville, Macon, Columbia, Hughesville) during Mooresville Planted: 0-2 Harvested: 0-25 Growing Season Rainfall: 9.7 in. Columbia Planted: 0-04 Harvested: Growing Season Rainfall:.5 in. Macon Planted: Harvested: 0-05 Growing Season Rainfall: 5.9 in. Hughesville Planted: 0-05 Harvested: 0-24 Growing Season Rainfall: 9.3 Yield (Bu/Acre) Brand-Hybrid Mooresville Macon Columbia Hughesville Mean Standard NC+ 7R34 DEKALB DKS * 30.8* 27.2* 3.8** 44.* 39.* 3.8** ** 29.8* Dyna-Gro GX ** Dyna-Gro GX0750 Dyna-Gro GX * 2.2* 33.* DEKALB DKS54-00 Dyna-Gro 772B * 2.5* * 3.* Pioneer 84G2 34.* 34.* 45.4** DEKALB DKS3- Garst * * NC+ 7B5 Pioneer 85Y40 3.9* 39.8** * 3.* 38.4* Dyna-Gro GX * DEKALB DK44 DEKALB DKS * Dyna-Gro 75B DEKALB DKS * Dyna-Gro 74B TEST AVERAGE L.S.D. AT C.V. % ** Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. Note: To view seed treatments for these hybrids refer to the location table or the characteristics chart. 9

11 Southeast Region Crop Management Summary There are three locations in the Southeast Region for the Grain Sorghum Test. They are located in counties where a significant number of acres of grain sorghum are grown according to the Missouri Agricultural Statistics Service. Cultural practices vary slightly between locations, but tend to reflect those followed by farmers in the area. Rainfall was below normal this year in the Southeast Region and temperatures were slightly above normal. Yields at Bertrand and Portageville Loam were about average for the area, 44. bushels/acre and 32.3 bushels/acre respectively. An additional site at Portageville was planted, but due to circumstances beyond our control, yields were too low to include in this report. Climatological information for the growing season (May September 30) for the Southeast Region is summarized below and cultural practices for each site are listed in Table 7. Average temperature = 7.4 degrees,.4 degrees above normal Average precipitation = 5., 4.0 below normal Table 7. Southeast Region Crop Management Summary Planting Harvest Herbicide Location date date N P 2 O 5 K 2 O Tillage Pre Post Standard Grain Sorghum Tests Bertrand Conventional Dual II Magnum, Atrazine 2,4-D Portageville Loam Conventional Dual II Magnum, Atrazine 2,4-D 0

12 TABLE 8. Standard Grain Sorghum Test Southeast Region: Bertrand, MO (Mississippi County) Soil Type: Sikeston Loam Soil Test: ph=.4, OM=2.7%, P=2, K=74 Rainfall: May=3., June=5.0, July=5., Aug.=0.3, Sept.=3.7 Total=7.2 in Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre Garst ** Pioneer 84G2, 5, * 5.8* 37.8 DEKALB DKS37-07 Garst 544 3, * 54.7* Dyna-Go GX * FFR 322 NA * DEKALB DKS53-7 3, Golden World GWX445 DEKALB DK44, 3, 4, 3, Dyna-Gro GX FFR X358 NA Dyna-Gro 772B Dyna-Gro 754B Pioneer 82G0, 5, * 30.0 Dyna-Gro GX DEKALB DKS3-3, Dyna-Gro GX DEKALB DKS42-20 Golden World GWX488 3,, 3, 4, Dyna-Gro 75B Dyna-Gro 780B DEKALB DKS , * 28.9 Crow's 590 Dyna-Gro 758B * Gateway GS595W 3, TEST AVERAGE L.S.D. AT C.V. % Data not available. ** Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. + Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil)

13 TABLE 9. Standard Grain Sorghum Test Southeast Region: Portageville Loam, MO (Pemiscot County) Soil Type: Tiptonville Silt Loam Soil Test: ph=.0, OM=.2%, P=84, K=30 Rainfall: May=2.7, June=.4, July=3., Aug.=0., Sept.=8.9 Total=.7 in Yield Plant 2 Yr. Brand-Variety Seed Treatment + Moisture Height Lodging Mean (%) (in) bu/acre Crow's ** Pioneer 84G2, 5, * 2.** 30.4 Garst 544 Dyna-Gro GX * 44.5* DEKALB DKS53-7 3, * DEKALB DKS , * Golden World GWX488, 3, 4, * Dyna-Gro 780B FFR X358 NA * 38.8* 98.2* 9. DEKALB DKS3-3, DEKALB DK44 3, * 5.9 Golden World GWX445, 3, 4, * 23.0 Dyna-Gro 75B Dyna-Go GX * 9.2 FFR 322 NA * 7. Dyna-Gro 754B * 9.7 Pioneer 82G0, 5, Dyna-Gro GX0704 Dyna-Gro 772B Gateway GS595W 3, DEKALB DKS , Dyna-Gro 758B * 05.3 Dyna-Gro GX070 Garst DEKALB DKS , TEST AVERAGE L.S.D. AT C.V. % Data not available. ** Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. + Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil) 2

14 TABLE 0. Performance of Standard Hybrids evaluated at Two Southeast Missouri locations (Bertrand, Portageville Loam) during Bertrand Planted: Harvested: 09-2 Growing Season Rainfall: 7.2 in. Irrigation: 8 in. Portageville Loam Planted: Harvested: Growing Season Rainfall:.7 in. Irrigation: 9 in. Yield (Bu/Acre) Brand-Hybrid Bertrand Portageville Loam Mean Standard Pioneer 84G2 59.7* 48.2* 53.9** Garst * 45.2* 49.9* DEKALB DKS53-7 Dyna-Go GX * 4.* * 43.9 Dyna-Gro GX * 43. Golden World GWX FFR * Crow's 590 FFR X ** 38.8* DEKALB DK Golden World GWX * 40.4 DEKALB DKS Dyna-Gro GX0704 Dyna-Gro 754B Pioneer 82G Dyna-Gro 772B DEKALB DKS * 3.2 Dyna-Gro 780B Dyna-Gro 75B * Garst ** DEKALB DKS DEKALB DKS * Dyna-Gro GX070 Gateway GS595W Dyna-Gro 758B TEST AVERAGE L.S.D. AT C.V. % ** Highest yielding hybrid in the test. * Hybrid which did not yield significantly less than the highest yielding hybrid in the test. Note: To view seed treatments for these hybrids refer to the location table or the characteristics chart. 3

15 Characteristics and Table Numbers for Grain Sorghum Hybrids used in 2007 Tests Brand Hybrid Seed Treatment Maturity Days Grain Color Special Traits Green Bug Biotype Res. Table Numbers Crow's BZ None C,E 8, 9, 0 DEKALB DK44 3, 7 BZ None E 2, 3, 4, 5,, 8, 9, 0 DEKALB DKS3-3, 2 BZ None None 2, 3, 4, 5,, 8, 9, 0 DEKALB DKS , 2 BZ None C,E,I 2, 3, 4, 5,, 8, 9, 0 DEKALB DKS , BZ None C,D,E 2, 3, 4, 5,, 8, 9, 0 DEKALB DKS53-7 3, 7 BZ None None 2, 3, 4, 5,, 8, 9, 0 DEKALB DKS , 74 BZ None C,D,E,I 2, 3, 4, 5,, 8, 9, 0 Dyna-Go GX BZ None NA 8, 9, 0 Dyna-Gro 75B 9 BZ None C,E 2, 3, 4, 5,, 8, 9, 0 Dyna-Gro 754B 58 BZ None None 8, 9, 0 Dyna-Gro 758B 0 BZ None None 8, 9, 0 Dyna-Gro 74B 5 BZ None C,E 2, 3, 4, 5, Dyna-Gro 772B 8 BZ None C,E 2, 3, 4, 5,, 8, 9, 0 Dyna-Gro 780B 5 BZ None C,E 8, 9, 0 Dyna-Gro GX BZ None NA 2, 3, 4, 5,, 8, 9, 0 Dyna-Gro GX030 4 BZ None C,E 2, 3, 4, 5, Dyna-Gro GX BZ None C,E,I 2, 3, 4, 5, Dyna-Gro GX BZ None NA 8, 9, 0 Dyna-Gro GX073 3 BZ None NA 8, 9, 0 Dyna-Gro GX BZ None C,E 2, 3, 4, 5, FFR 322 NA 4 R None E 8, 9, 0 FFR X358 NA 4 R None None 8, 9, 0 Garst BZ None E 2, 3, 4, 5,, 8, 9, 0 Garst BZ None E 8, 9, 0 Gateway GS595W 3, 4 95 W None C,E 8, 9, 0 Golden World GWX445, 3, 4, R NA NA 8, 9, 0 Golden World GWX488, 3, 4, 3 BZ NA NA 8, 9, 0 NC+ 7B5 2, 70 BZ None None 2, 3, 4, 5, NC+ 7R34 2, 70 R None None 2, 3, 4, 5, Pioneer 82G0, 5, 7 72 BZ None None 8, 9, 0 Pioneer 84G2, 5, 7 72 BZ None E 2, 3, 4, 5,, 8, 9, 0 Pioneer 85Y40, 5, 7 70 W None None 2, 3, 4, 5, * Descriptions were provided by the companies submitting them for evaluation NA Information Not Available Seed Treatments: = Allegiance (Metalaxyl); 2= Apron XL (Mefenoxam); 3= Captan; 4=Concep (Fluxofenim); 5= Cruiser (Thiamethoxam); = Gaucho (Imidacloprid); 7= Maxim XL (Fludioxonil) Maturity Days: Days to 50% bloom Grain Color: BZ = Bronze; R = Red; W = White Green Bug Biotype Resistance: C,D,E, I 4

16 Sources for Grain Sorghum Hybrids Used in 2007 Tests Brand Company and Address Phone Number URL Crow's Crow's Hybrid Corn Company crowshybrid.com PO Box 57, Kentland, IN 4795 Dekalb Monsanto monsanto.com 759 N. 247th St. W., Mt. Hope, KS 708 Dyna Gro UAP - Dyna-Gro dyna-groseed.com 57 Germantown Court Suite 200, Cordova, TN 3808 Dyna Gro UAP Dyna-Gro Seeds dyna-groseed.com 50 W. Wall, Harrisonville, MO 470 FFR FFR Seed ourcoop.com 99 Cloverleaf Dr., Southaven, MS 387 Garst Garst Seed Co garstseed.com th Street, Slater, IA Gateway Gateway Seed Co. Inc gatewayseeds.com 557 Van Buren Rd., Nashville, IL 223 Golden World Crosbyton Seed Co crosbytonseed.com 30 E Main, PO Box 429, Crosbyton, TX NC+ Hybrids Channel Bio Corp channelbio.com PO Box 278, Kentland, IN 4995 Pioneer Pioneer Hi-Bred Int. Inc pioneer.com 700 Boulevard South, Suite 302, Huntsville, AL Pioneer Pioneer Hi-Bred Int Cody Dr. Suite A, Lincoln, NE pioneer.com 5

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18 University of Missouri Extension Publications 2800 Maguire Blvd. Columbia, MO For additional copies of this report, contact Extension Publications at the address above or by phone or toll-free Missouri Agricultural Experiment Station University of Missouri-Columbia Issued in furtherance of Cooperative Extension Work Acts of May 8 and June 30, 94, in cooperation with the United States Department of Agriculture. Michael D. Ouart, Director, Cooperative Extension, University of Missouri, Columbia, MO 52. University of Missouri Extension does not discriminate on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status in employment or in any program or activity. If you have special needs as addressed by the Americans with Disabilities Act and need this publication in an alternative format, write ADA Officer, Extension and Agricultural Information, -98 Agriculture Building, Columbia, MO 52, or call Reasonable efforts will be made to accommodate your special needs. SR57 New /07/.8M