Current Report Oklahoma Cooperative Extension Fact Sheets are also available on our website at: facts.okstate.edu Division of Agricultural Sciences and Natural Resources • Oklahoma State University CR-2162 0119 Oklahoma Cooperative Extension Service Trial Objectives and Procedures Each year, hybrid grain sorghum performance trials are conducted by the Oklahoma Cooperative Extension Service. These trials provide information for grain sorghum hybrids marketed in Oklahoma to producers, Extension educators, industry representatives and researchers. Performance trials were conducted at nine locations in 2018 under both dryland and irrigated production. Dryland trials were planted at Adams, Chickasha, Goodwell, Hobart, Homestead, Keyes, Lahoma, Miami, Perkins and Tipton. Two fully sprinkler-irrigated trials and one limited drip-irrigated trial were planted at Goodwell. Yields presented in this document are for the early, medium- and late-maturity hybrids for all locations. Hobart trials were established in a timely manner and achieved adequate early season stands; however, herbicide drift from a neighboring field application resulted in termination of the trial. Trials were re-established, but the delayed planting, paired with unfavorable conditions, resulted in the trial having to be terminated. The Tipton trial was established in dry conditions, resulting in thin but acceptable stands. However, with continued dry conditions and bird feeding pressure, this trial was ultimately abandoned with no grain harvest.The Keyes location was planted into good moisture, but rapid drying resulted in inadequate stands. The original trial was abandoned and replanted later into June. At the grower’s request, only early and early-medium maturing hybrids were tested. Table 1 lists the hybrids entered in the performance trials. Tables 2 through 33 report hybrid yields and test weights for all trials harvested, along with associated populations and head count (on a heads per acre basis). Grain sorghum hybrids entered (Table 1) were assigned by companies to their respective maturity groups (early = less than 60 days to mid-bloom; medium = 60 to 69 days to mid-bloom; and late = 70 days and greater to mid-bloom) and trial locations; therefore all hybrids were not entered at all locations. Companies designated all hybrid characteristics presented in Table 1. This information was not determined or verified by Oklahoma State University. Company participation was voluntary; therefore, not all hybrids marketed in Oklahoma were included in the trials. In 2018, 39 hybrids were entered by 11 seed companies see in Table 1. Among the varieties, 23 were entered as ‘sug- Grain Sorghum Performance Trials in Oklahoma, 2018 Josh Lofton Gary Strickland Assistant Professor SWREC Dry-land Cropping Systems Specialist arcane aphid tolerant.’ Table lists comparative yields between all hybrids considered sugarcane aphid tolerant. An additional trial was planted in 2018 evaluating selected very early and early maturity hybrids, these results are reported in Table 35. Several of the hybrids tested were those utilized in the other locations; however, additional hybrids were also tested. Each maturity group was tested independently in a randomized complete block design with a minimum of four replications. All locations were two row plots with 30-inch spacing and 35 feet in length. Plots were trimmed to 25 feet prior to harvest. Tractor-powered cone planters were used to plant all trials with seeding rates adjusted for the trial location. Trials were harvested with a Kincaid model, 8XP plot combine in the panhandle and a Wintersteiger Delta combine for all downstate trials. Target populations, cooperating producers, fertilization, cultural practices, soil series, herbicides and insecticides used in all trials are listed individually in the results tables. Rainfall data from the nearest Mesonet sites are also listed. Some trials are long distances from the nearest Mesonet site; therefore rainfall could be greater or less than reported. Growing Conditions and Season Highlights The sorghum production season in 2018 was highly vari- able, with much of the state’s crop yielding either higher or much lower than typical, with little ground in between. Part of the yield variability can be attributed to planting date. Even though adequate soil temperatures existed during the first several weeks of April, uncertainty regarding rainfall and soil moisture reserves deterred most sorghum producers from planting during the early portions of the planting window. With warmer conditions and timely rainfall, much of the sorghum, outside the panhandle, was planted during the last week of April and first weeks of May. Some exceptions to this were found in the far southwest regions where rapid drying occurred following any precipitation events they experienced, resulting in high amounts of soil crusting and poor emergence. In the panhandle, precipitation was the major limiting factor for plant- ing. Dry conditions throughout early and late May slowed much of the planting of crops in that region. Heavy rainfall events in early June delayed planting, resulting in many growers having
Transcript
Current ReportOklahoma Cooperative Extension Fact Sheets are also available on our website at:
facts.okstate.edu
Division of Agricultural Sciences and Natural Resources • Oklahoma State University
CR-21620119
Oklahoma Cooperative Extension Service
Trial Objectives and Procedures Each year, hybrid grain sorghum performance trials are conducted by the Oklahoma Cooperative Extension Service. These trials provide information for grain sorghum hybrids marketed in Oklahoma to producers, Extension educators, industry representatives and researchers. Performance trials were conducted at nine locations in 2018 under both dryland and irrigated production. Dryland trials were planted at Adams, Chickasha, Goodwell, Hobart, Homestead, Keyes, Lahoma, Miami, Perkins and Tipton. Two fully sprinkler-irrigated trials and one limited drip-irrigated trial were planted at Goodwell. Yields presented in this document are for the early, medium- and late-maturity hybrids for all locations. Hobart trials were established in a timely manner and achieved adequate early season stands; however, herbicide drift from a neighboring field application resulted in termination of the trial. Trials were re-established, but the delayed planting, paired with unfavorable conditions, resulted in the trial having to be terminated. The Tipton trial was established in dry conditions, resulting in thin but acceptable stands. However, with continued dry conditions and bird feeding pressure, this trial was ultimately abandoned with no grain harvest. The Keyes location was planted into good moisture, but rapid drying resulted in inadequate stands. The original trial was abandoned and replanted later into June. At the grower’s request, only early and early-medium maturing hybrids were tested. Table 1 lists the hybrids entered in the performance trials. Tables 2 through 33 report hybrid yields and test weights for all trials harvested, along with associated populations and head count (on a heads per acre basis). Grain sorghum hybrids entered (Table 1) were assigned by companies to their respective maturity groups (early = less than 60 days to mid-bloom; medium = 60 to 69 days to mid-bloom; and late = 70 days and greater to mid-bloom) and trial locations; therefore all hybrids were not entered at all locations. Companies designated all hybrid characteristics presented in Table 1. This information was not determined or verified by Oklahoma State University. Company participation was voluntary; therefore, not all hybrids marketed in Oklahoma were included in the trials. In 2018, 39 hybrids were entered by 11 seed companies see in Table 1. Among the varieties, 23 were entered as ‘sug-
Grain Sorghum Performance Trials in Oklahoma, 2018
Josh Lofton Gary Strickland Assistant Professor SWREC Dry-land Cropping Systems Specialist
arcane aphid tolerant.’ Table lists comparative yields between all hybrids considered sugarcane aphid tolerant. An additional trial was planted in 2018 evaluating selected very early and early maturity hybrids, these results are reported in Table 35. Several of the hybrids tested were those utilized in the other locations; however, additional hybrids were also tested. Each maturity group was tested independently in a randomized complete block design with a minimum of four replications. All locations were two row plots with 30-inch spacing and 35 feet in length. Plots were trimmed to 25 feet prior to harvest. Tractor-powered cone planters were used to plant all trials with seeding rates adjusted for the trial location. Trials were harvested with a Kincaid model, 8XP plot combine in the panhandle and a Wintersteiger Delta combine for all downstate trials. Target populations, cooperating producers, fertilization, cultural practices, soil series, herbicides and insecticides used in all trials are listed individually in the results tables. Rainfall data from the nearest Mesonet sites are also listed. Some trials are long distances from the nearest Mesonet site; therefore rainfall could be greater or less than reported.
Growing Conditions and Season Highlights The sorghum production season in 2018 was highly vari-able, with much of the state’s crop yielding either higher or much lower than typical, with little ground in between. Part of the yield variability can be attributed to planting date. Even though adequate soil temperatures existed during the first several weeks of April, uncertainty regarding rainfall and soil moisture reserves deterred most sorghum producers from planting during the early portions of the planting window. With warmer conditions and timely rainfall, much of the sorghum, outside the panhandle, was planted during the last week of April and first weeks of May. Some exceptions to this were found in the far southwest regions where rapid drying occurred following any precipitation events they experienced, resulting in high amounts of soil crusting and poor emergence. In the panhandle, precipitation was the major limiting factor for plant-ing. Dry conditions throughout early and late May slowed much of the planting of crops in that region. Heavy rainfall events in early June delayed planting, resulting in many growers having
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to wait until early June or to forgo planting sorghum altogether. The months of June and July were the most challenging of the 2018 growing season. Dry conditions started in the northeast and southwest regions during the latter parts of June and further developed to most of the downstate region during the first two weeks of July. This was exacerbated since most of the later-planted sorghum in these regions were going through late flowering or early grain fill stages. These often are considered the most sensitive growth stages for grain sorghum to experience environmental stress. These condi-tions negatively influenced pollination, grain fill, seed weight and ultimately yields. Rains returned to much of the state in late July and early August with the exception for areas in the southwest region. This allowed much of the crop to recover. However, due to these conditions, earlier-planted sorghum had less tillers and less yield from these tillers, while later planting had better tiller production, which accounted for a higher percentage of yield. Uncharacteristically, during this same period, the panhandle region received higher-than-average rainfall. These conditions resulted in greater biomass production and tiller development compared to what would be expected with later planting. This, along with good reproductive development, resulted in strong yield potential in the region. Poor dry-down conditions existed in 2018, mostly due to cooler-than-average temperatures and regular rainfall events. This resulted in increased time between physiologic maturity and harvest maturity. It also contributed to increased amounts of immature tillers. These conditions, especially the prolonged field drying, resulted in both yield loss and significant decreases seed weight. To overcome these issues, harvest aid applica-tions were made universally across all plots at all locations. Similar to 2017, sugarcane aphids were not a major pest in Oklahoma. In western Oklahoma and the panhandle re-gion, regional populations were large enough to warrant an insecticide application, but this was not common throughout the state. However, significant pressure from foliage and seed worms, grasshoppers, chinch bugs and weeds existed statewide in 2018. Much of the sorghum throughout the down-state region had varying levels of whorl worm damage. While this is typically not yield limiting, late-vegetative whorl worm feeding resulted in increased corn ear worm and head worm pressure during early flowering and seed development. The primary insect pest during 2018 was chinch bugs. Growers reported higher-than-average infestations of both true and false-chinch bugs in 2018. Similar to whorl worms, chinch bugs are a perennial issue and are thought to not significantly influence yields. However, higher pressure and more wide-spread occurrences were a major issue in 2018. This, coupled with the dry conditions, exacerbated the issue and many growers and consultants felt that these pests were a major yield-limiting factor for this season. Higher rainfall in both the panhandle and downstate regions during planting and early season resulted in increased weed pressure for 2018 crop. Johnsongrass and various pigweed species were the primary culprit. While several options still exist for controlling pigweed in sorghum production, growers were finding mixed results in 2018, due to the influence environmental conditions can have on herbicide efficacy. Weed control was successful at the Homestead, Lahoma, Perkins and Chickasha sites due to timely herbicide applications and hand removal.
Results Grain yields are reported in pounds per acre and bushels per acre of threshed grain, adjusted to a moisture content of 14 percent (Tables 2 through 35). Test weight is also re-ported in pounds per bushel. Bird damage is reported when present. Different plant populations at each location prevent accurate comparison between locations. Also, comparisons across maturity were not conducted, as they were treated as independent trials. Producers should note that late-maturing hybrids will generally yield more than early and medium maturity hybrids. The availability of moisture at critical crop development periods, however, often influences yield more than the yield differences associated with maturity groups. When choosing a maturity group, the type of cropping system, planting date, planting rate and potential moisture should be taken into consideration. For more information consult Fact Sheets PSS-2034, Grain Sorghum Planting Rates and Dates, and PSS-2113 Grain Sorghum Production Calendar. Least Significant Difference (LSD) is a statistical test of yield differences and is shown at the bottom of each table. Unless two hybrids differ by at least the LSD shown, little confidence can be placed in one hybrid being superior to another and the difference is probably not real. The Coefficient of Variation (CV) is provided as an esti-mate of the precision of the data with respect to the mean for that location and maturity group. To provide some indication of yield stability, multiple-year means for yield and test weight are provided where trials have been conducted for more than one year with more than three entries per maturity group. Producers interested in comparing hybrids for consistency of yield in a specific area should consult these entries. Variability of yields within hybrids was higher than desirable in the 2018 season. Much of this variability can be associated with environmental conditions, particularly excessive moisture early and late-season drought. Plant populations also were lower and less uniform than usual, which may have contributed to the problem. Models with CV’s above 20 are not always reported, depending on location situations. However, when used, it should be with the understanding that a higher-than-desirable degree of variability existed around sample means. Models with CV’s greater than 25 have not been included in this report.
Acknowledgements The financial support of the Oklahoma Sorghum Com-mission is gratefully acknowledged, as well as the efforts of the producer-cooperators: Zack and Brent Rendel, Brook Strader, Kenneth Rose and Leon Richard. The authors are also grateful for research support from Chase Harris, PSS Agriculturalist; Michael Pettijohn of SCREC and Cameron Murley, Skeate Beck and Jeremy Brian of OPREC. We are also grateful for the help of County Agricultural Educators: Rick Nelson,Garfield County; Kassie Janghanns, Grant County; Courtney May, Ottawa County; Troy Gosney, Major County; and David Nowlin, Caddo County who gave generously of their time to this project.
Figure 1. Average monthly rainfall in April 2018.
Figure 2. Departure from average rainfall for April 2018.
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Figure 4. Average monthly rainfall in May 2018.
Figure 3. Average monthly air temperature in April 2018.
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Figure 5. Average monthly rainfall in June 2018.
Figure 6. Departure from average rainfall for June 2018.
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Figure 8. Average maximum air temperature July 2018.
Figure 7. Average monthly rainfall for July 2018.
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Table 1. Seed source and hybrid characteristics of grain sorghums in the Oklahoma Grain Sorghum Performance Trials, 2018. All hybrids are susceptible to birds and are single cross. Days to Sugarcane Aphid GreenbugCompany Hybrids Maturity Seed Color1 Mid-bloom Tolerance2 Resistance3
Advanta ADV G2106 Medium Bz 66 3 --Advanta ADV G2275 Medium Bz 68 3 --Advanta ADV X602 Medium Bz 69 -- --Advanta ADV XG093 Medium Bz 68 -- --Advanta ADV XG016 Medium Bz 67 -- --Advanta ADV G3247 Late Bz 73 3 --Alta Grain AG1201 Medium Bz 60 2,3 --Alta Grain AG1203 Medium Bz 65 2,3 --B-H Genetics BH 3616 Early Bz 59 3 EB-H Genetics BH 4100 Medium Bz 63 3 --Chromatin Inc. CHR0395 Medium Bz 69 -- --Gold Source GS6717 Medium Bz 67 3 C,EGold Source GS7016 Medium R 70 3 C,EGold Source GS7117 Late R 71 3 C,EGold Source GS7215 Late R 72 3 C,EGolden Acres 3960B Medium Bz 69 3 C,EMonsanto DKS 29-07 Early WHT 59 -- --Monsanto DKS 33-07 Medium Bz 61 3 --Monsanto DKS 37-07 Medium Bz 62 3 --Monsanto DKS 47-07 Medium Bz 68 2 --NuTech Seed, LLC GS 636 Medium Bz 63 2 --NuTech Seed, LLC GS 663 Medium Bz 66 -- --NuTech Seed, LLC GS 693 Medium R 69 -- --NuTech Seed, LLC GS 725 Late R 71 -- --Pioneer 86G32 Medium R 65 -- Pioneer 84P68 Medium Bz 69 3 --Pioneer 85P44 Medium Bz 70 3 C,EPioneer 85Y34 Medium WHT 66 3 --Pioneer 86P20 Medium R 64 3 --Pioneer 84P72 Late R 71 3 --Richardson Seed Swift Early R 62 -- C,ERichardson Seed RS 124 Early R 53 3 --Richardson Seed RS 230 Early R 62 3 --Sharp Brothers Seed SB 3117 Early R 58 3 --Sharp Brothers Seed SB3217 Early WHT 59 3 --Sharp Brothers Seed SB4117 Medium R 65 3 --Sorghum Partners SP 68M57 Medium Bz 65 3 --Sorghum Partners SP 73B12 Late Bz 71 2,3 --Sorghum Partners SP7715 Late Bz 73 2,3 --Sorghum Partners KS 585 Medium Bz 65 -- C,E
1 Seed Color: Bz- Bronze; WHT- White; R- Red 2 Sugarcane Aphid Tolerance- 2=Listed by National Sorghum Check-off; 3=Listed by parent company 3 Greenbug Resistance: Biotype hybrid
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Table 2. Early hybrids from the Oklahoma Grain Sorghum Hybrid Tests Chickasha, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1,000) Heads/Plant
Table 3. Medium hybrids from the Oklahoma Grain Sorghum Hybrid Tests Chickasha, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1,000) Heads/Plant
Table 4. Late hybrids from the Oklahoma Grain Sorghum Hybrid Tests Chickasha, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1,000) Heads/Plant
Cooperator: Michael PettijohnTillage Practice: ConventionalSoil Series: Dale silt loamSeeding rate: 48,600 seeds/acHerbicide: 2.7 qt/ac Lumax EZ + 1qt glyphosate/ac Fertilizer: N- 150 lbs/ac, P- 87 lbs/ac, K- 40 lbs/ac, S- 10 lbs/ac Starter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: April 12, 2018Harvest Date: August 7, 2018
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Homestead
Table 5. Early hybrids from the Oklahoma Grain Sorghum Hybrid Tests Homestead, OK. Grain Yield 2-year average MoistureCompany Hybrid lbs/ac bu/ac bu/ac %
Table 7. Late hybrids from the Oklahoma Grain Sorghum Hybrid Tests Homestead, OK. Grain Yield 2-year average MoistureCompany Hybrid lbs/ac bu/ac bu/ac %
Cooperator: Brook StraderTillage Practice: No-till into wheat residue Soil Series: Canadian Fine Sandy LoamSeeding rate: 48,600 seeds/acHerbicide: Atrazine4L 2pt/ac + 1.3 pt/ac DualFertilizer: N- 95 lbs/ac, P- 0, K- 0Starter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: April 27, 2018Harvest Date: September 12, 2018
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Table 8. Early hybrids from the Oklahoma Grain Sorghum Hybrid Tests Lahoma, OK. 2-year Test Plant Grain Yield average Moisture Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lbs/bu (x1000) Heads/Plant
Table 9. Medium hybrids from the Oklahoma Grain Sorghum Hybrid Tests Lahoma, OK. 2-year Test Plant Grain Yield average Moisture Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lbs/bu (x1000) Heads/Plant
Table 10. Late hybrids from the Oklahoma Grain Sorghum Hybrid Tests Lahoma, OK. 2-year Test Plant Grain Yield average Moisture Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lbs/bu (x1000) Heads/Plant
Cooperator: Erich WehrenbergTillage Practice: No-till Soil Series: Grant Silt LoamSeeding rate: 48,600 seeds/acHerbicide: Atrazine4L 2pt/ac + 1.3 pt/ac DualFertilizer: N- 120 lbs/ac, P- 60 lbs/ac, K- 40 lbs/ac, S- 10lbs/ac, Lime- 2tons/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: May 1, 2018Harvest Date: September 12, 2018
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Miami
Table 11. Early hybrids from the Oklahoma Grain Sorghum Hybrid Tests Miami, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
CV (%) 1.5LSD(0.05) 764 Table 12. Medium hybrids from the Oklahoma Grain Sorghum Hybrid Tests Miami, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
Table 13. Late hybrids from the Oklahoma Grain Sorghum Hybrid Tests Miami, OK. Plant Grain Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
Cooperator: Zach and Brent RendelTillage Practice: ConventionalSoil Series: Taloka silt loamSeeding rate: 48,600 seeds/acHerbicide: Atrazine4L 2pt/ac + 1.3 pt/ac DualFertilizer: N- 127 lbs/ac, P- 40 lbs/ac, K- 0Starter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: May 4, 2018Harvest Date: September 13, 2018
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Table 14. Early hybrids from the Oklahoma Grain Sorghum Hybrid Tests Perkins, OK. Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
Table 15. Medium hybrids from the Oklahoma Grain Sorghum Hybrid Tests Perkins, OK. Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
Cooperator: Josh MasseyTillage Practice: Conventional TillSoil Series: Teller fine sandy loamSeeding rate: 48,600 seeds/acHerbicide: Atrazine4L 2pt/ac + 1.3 pt/ac DualFertilizer: N- 142 lbs/ac, P- 87 lbs/ac, K- 40 lbs/ac, S- 15 lbs/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: April 23, 2018Harvest Date: August 8, 2018
Table 16. Late hybrids from the Oklahoma Grain Sorghum Hybrid Tests Perkins, OK. Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu (x1000) Heads/Plant
Table 17. Early hybrids from the Oklahoma Sorghum Performance Trial from Adams. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
Table 18. Medium hybrids from the Oklahoma Sorghum Performance Trial from Adams. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
Table 19. Late hybrids from the Oklahoma Sorghum Performance Trial from Adams. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
Cooperator: Leon RichardTillage Practice: Conventional TillSoil Series: Dalhart Fine Sandy LoamSeeding rate: 30,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac + 1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 80 lbs N/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: June 6, 2018Harvest Date: November 5, 2018
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Table 20. Early hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Dryland. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
LSD(0.05) 1,131 Table 21. Medium hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Dryland. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
Table 22. Late hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Dryland. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000) Heads/Plant
Cooperator: Cameron MurleyTillage Practice: No-till following wheatSoil Series: Gruver Clay Loam Seeding rate: 30,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/acFertilizer: N- 60 lbs N/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: June 5, 2018Harvest Date: October 17, 2018
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Goodwell Drip Irrigated
Table 23. Early hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Drip. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1,000) Heads/Plant
CV (%) 4.5LSD(0.05) 989 Table 24. Medium hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Drip. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1,000) Heads/Plant
Table 25. Late hybrids from the Oklahoma Sorghum Performance Trial from Goodwell- Drip. 2-year Plant Yield average Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1,000) Heads/Plant
Cooperator: Cameron MurleyTillage Practice: Strip-till into corn residueSoil Series: Gruver Clay LoamTarget Population: 50,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac + 1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 180 lbs N/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: June 5, 2018Harvest Date: October 22, 2018
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Goodwell Sprinkler Irrigated (Behind Corn)
Table 26. Early hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Corn). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1,000) Heads/Plant
CV (%) 11.5LSD(0.05) 1,036 Table 27. Medium hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Corn). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1,000) Heads/Plant
Table 28. Late hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Corn). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1,000) Heads/Plant
Cooperator: Cameron MurleyTillage Practice: Strip-till into corn residueSoil Series: Gruver Clay LoamTarget Population: 50,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac + 1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 150 lbs N/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: June 6, 2018Harvest Date: October 22, 2018
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Goodwell- Sprinkler Irrigated (Behind Sorghum)
Table 29. Early hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Sorghum). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1000) Heads/Plant
Table 30. Medium hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Sorghum). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1000) Heads/Plant
Cooperator: Cameron MurleyTillage Practice: Strip-till into corn residueSoil Series: Gruver Clay LoamTarget Population: 50,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac + 1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 150 lbs N/acStarter Fertilizer: 5 gallons of 10-34-0 applied at planting Planting Date: June 6, 2018Harvest Date: October 22, 2018
Table 31. Late hybrids from the Oklahoma Sorghum Performance Trial from Goodwell-Irrigated (Behind Sorghum). Plant Yield Moisture Test Weight Population Head CountCompany Hybrid lbs/ac bu/ac % lb/bu (x1000) Heads/Plant
Table 32. Early hybrids from the Oklahoma Sorghum Performance Trial from Keyes. Plant Yield 2-year average Moisture Test Weight PopulationCompany Hybrid lbs/ac bu/ac bu/ac % lb/bu (x1000)
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