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Division of Agricultural Sciences and Natural Resources • Oklahoma State University

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Oklahoma Cooperative Extension Service

Grain Sorghum Performance Trials in Oklahoma, 2017

Josh Lofton Gary Strickland Assistant Professor SWREC Dry-land Cropping Systems Specialist Plant and Soil Sciences Dept. Oklahoma Cooperative Extension Service

Heath Sanders Josh Bushong Southwest Area Extension Agronomist Northwest Area Extension AgronomistPlant and Soil Sciences Dept. Plant and Soil Sciences Dept.

Trial Objectives and Procedures Each year, performance trials for hybrid grain sorghum are conducted by the Oklahoma Cooperative Extension Service. These trials provide producers, Extension educators, industry representatives and researchers with information for grain sorghum hybrids marketed in Oklahoma. Performance trials were conducted at 11 locations in 2017. Dry-land trials were planted at Adams, Apache, Dacoma, Goodwell, Homestead, Keyes, Lahoma, Nardin and Tipton. One fully sprinkler-irrigated trial 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, with the exception of the sprinkler-irrigated trial in Goodwell. Early season rainfall, paired with insufficient early season herbicide application resulted in highly variable stands, therefore had higher variability to yields at the end of the season (coefficient of variation greater than 20 percent). Table 1 lists the hybrids entered in the performance trials. Tables 2 through 30 report hybrid yields and test weights for all trials harvested, with as-sociated populations and head count (on a heads per acre basis) where collected. 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 2017, 45 hybrids were entered by 14 seed companies (Table 1). Among the varieties, 26 were entered as ‘sugarcane

aphid tolerant.’ Table 32 lists comparative yields between all hybrids considered sugarcane aphid tolerant. Each maturity group was tested independently in a randomized complete block design with four replications. All downstate locations, the drip irrigated plot in Goodwell and the plots at Adams and Keyes were two row plots with 30-inch spacing and 25 feet in length. Plots were trimmed to 20 feet prior to harvest. The dry-land trial at Goodwell was two 30-inch rows by 35 feet in length and was 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 2017 season was highlighted by either favorable or challenging conditions at or near planting. For much of the growing season in the Southwest, timely rains and adequate soil moisture was present around planting. This, paired with cooler conditions, resulted in good emergence of most of the crop. This was different in northcentral and northwest Oklahoma. Most of this region suffered from below-normal temperatures and excessive rainfall. This pushed planting dates from April and early May, typically accepted as the prime planting timeframe, into mid to late May. Lower average

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yields were expected for these locations due to this delayed planting date. The largest impact of the later planting dates can be seen in the Nardin and Homestead location, which were not planted until late May or early June, and therefore had the lowest yields of all the locations. However, the aver-age yields of these locations were not lower than producers around the region in which planting was delayed. The optimum conditions in the southwest continued throughout much of the season with consistent rainfall, espe-cially during the early and mid-reproductive growth. Therefore, even though many plots at the southwest locations had thin-ner stands due to issues at planting, hybrids were allowed to put on an average of two heads per plant with good size and density, which resulted in good yields at both Tipton and Apache. Again, this differed from the northwest locations, which experienced extended dry conditions throughout much of June, especially later June when the crop was beginning reproductive growth. This resulted in lower average yields. Late-season conditions resulted in quality dry-down of the crop. All locations received a desiccant application; however, this was conducted as a means to even the crop out and dry-down immature tillers. This desiccation application would not have normally been needed as all plots were weed-free and maturity was occurring naturally. Unlike previous years, sugarcane aphids were not a primary pest for most of the sorghum producing regions in Oklahoma. Several localized areas during the season experi-enced sugarcane aphid populations large enough to trigger an insecticide application, but this was not common throughout the state. The only locations that required an insecticide applica-tion were Tipton and Lahoma. Applications at these locations were made prior to the plots reaching the economic threshold. However, two other insect pests caused concern this season. The first of these was false and true cinch bugs. This pest was primarily in the northern tier of counties. As there is not an economic threshold and no suitable insecticide is available for control of cinch bugs, many grower’s fields suffered from prolonged exposure to these pests. Sorghum head midge was the other major insect pest issue during 2017. Many growers suffered from banding of the sorghum head, where part of the sorghum head was absent of grain. No hybrid trial locations experienced issues with sorghum head midge or cinch bugs during the 2017 season; therefore, pest pressure was considered low during 2017. With the exception of the sprinkler-irrigated trial at Goodwell, most trial locations did not have any major issues throughout the year.

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 31). Test weight is also reported in

pounds per bushel. Bird damage is reported when present at a location. 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 2017 season. Much of this variability can be associated with environmental conditions, particularly exces-sive moisture early and drought late-season. Plant popula-tions were also lower and less uniform than usual, which may have contributed to the problem. Models with CV’s above 20 were 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 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: Alan Mindemann, Brook Strader, Tom Eakin, Kenneth Rose and Leon Richard. The authors are also grateful for research support from Chase Harris, Cameron Murley, Skeate Beck and Jeremy Brian of OPREC as well as Rocky Thacker, Toby Kelley and Jerry Goodson of SWREC. We are also grateful for the help of county agricul-tural Educators: Aaron Henson, Tillman County; Rick Nelson, Garfield County; Kassie Janghanns, Grant County; and David Nowlin, Caddo County who gave generously of their time.

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Figure 1. Average monthly rainfall in April 2017.

Figure 2. Departure from average rainfall for April 2017.

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Figure 3. Average monthly rainfall in May 2017.

Figure 4. Average monthly rainfall in June 2017.

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Figure 5. Departure from average rainfall for June 2017.

Figure 6. Average monthly rainfall in July 2017.

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Table 1. Seed source and hybrid characteristics of grain sorghums in the Oklahoma Grain Sorghum Performance Trials, 2017. All hybrids are susceptible to birds and are single cross. Days to Sugarcane GreenbugCompany Hybrids Maturity Seed Color1 Mid-bloom Aphid Tolerance2 Resistance3

Advanta ADV G1150 Medium R 63 -- --Alta Seeds AG 1201 Medium Bz 60 1,2 --Alta Seeds AG 1301 Medium Cr 63 1,2 --Alta Seeds AG 1203 Medium Bz 64-67 1,2 --Chromatin CHR0163 Early Bz 55-59 -- --Chromatin CHR2042 Late Bz 72-74 3,HT C,EChromatin CHR0029 Late Bz 69-73 3, HT --Chromatin CHR0072 Late Bz 68-72 3, MT --Gayland Ward GW-1160 Early Bz 58-62 -- C,EGayland Ward EXP 9134 Medium Bz 66 -- --Gayland Ward EXP 9135 Medium Bz 66 -- --Gayland Ward EXP 9138 Medium Bz 66 -- --Gayland Ward EXP 9139 Medium Bz 66 -- --Golden Acres 5613 Medium Bz 68-70 -- C,EGolden Acres 3960B Medium Bz 68-72 3 C,EHeartland Genetics HG EX 1750A Late Bz 73 3 C,EHeartland Genetics HG EX 1751B Late Bz 73 3 C,IMonsanto DKS 28-05 Early Bz 58 -- --Monsanto DKS 37-07 Early Bz 62 1,2 EMonsanto DKS 38-16 Medium Bz 63 -- --Monsanto DKS 45-23 Medium Bz 68 -- --Monsanto DKS 51-01 Late Bz 71 -- EMonsanto DKS 53-53 Late Bz 71 -- INuTech Seed GS 636 Medium Bz 63 3,HT NuTech Seed GS 693 Medium R 69 -- C,ENuTech Seeds GS 725 Late R 71 3 C,EPioneer 84P68 Medium R 69 3,MT --Pioneer 85Y34 Medium WHT 66 3 --Pioneer 86P20 Medium R 64 3 --Richardson Seeds Ltd. RS 120 Early R 61-63 -- C,ERichardson Seeds Ltd. RS 320 Early WHT 58-60 -- Richardson Seeds Ltd. Swift Early R 50-52 1,2 --Richardson Seeds Ltd. RS 215 Medium R 62-63 -- C,EScott Seed 505x5 Medium Bz 63-66 -- --Scott Seed X50215 Medium R 72 3 C,EScott Seed X54516 Medium R 72 3 C,ESharp Seed SB 3117 Early R 56-59 3 --Sharp Seed SB 3217 Early WHT 58-62 3 --Sharp Seed SB 4117 Medium R 64-67 3 --Sorghum Partners SP 31A15 Early Bz 54-58 -- --Sorghum Partners KS585 Medium Bz 64-68 -- C,ESorghum Partners SP 68M57 Medium Bz 64-68 3, MT --Sorghum Partners SP7715 Late Bz 71-75 3,HT C,ESorghum Partners SP 73B12 Late Bz 68-72 2,3,HT --Sorghum Partners SP 74C40 Late WHT 71-75 3,HT C,EWarner Seed W-844E Medium R 65-70 1,2 C,E

1 Seed Color: Bz- Bronze; WHT- White; R- Red. 2 Sugarcane Aphid Tolerance- 1=Listed by LSU; 2=Listed by National Sorghum Check-off; 3=Listed by parent company; MT=moderately tolerant;

HT=Highly tolerant. 3 Greenbug Resistance: Biotype hybrid.

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Table 2. Early maturity sorghum hybrids in Apache, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Monsanto DKS 28-05 3,079 55 8.5 49.9 26,500 1.3Monsanto DKS 37-07 4,064 73 8.2 47.1 15,800 2.5Gayland Ward GW-1160 3,238 58 7.8 45.0 37,000 1.7Sorghum Partners SP 31A15 3,695 66 9.1 49.7 29,300 1.6

Mean 3,519 63 8.4 47.9 CV 12.7 LSD (0.05) 745

Table 3. Medium maturity sorghum hybrids in Apache, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Scott Seed 5613 4,022 72 9.4 54.5 24,300 1.8Golden Acres 3960B 3,231 58 9.4 53.2 29,800 2.0Golden Acres 505X5 3,636 65 9.5 50.4 25,500 1.7Pioneer 84P68 3,038 54 7.6 47.5 27,500 1.9Pioneer 85Y34 3,408 61 9.2 52.5 23,300 2.0Pioneer 86P20 3,286 59 9.4 52.0 26,500 1.4Advanta Seeds ADV G1150 3,941 70 9.5 54.0 25,000 1.5Alta Seeds AG 1203 3,304 59 9.0 51.0 29,800 1.3Alta Seeds AG 1301 4,008 72 9.2 52.6 24,300 1.9Monsanto DKS 38-16 3,232 58 9.0 53.0 27,500 1.4Monsanto DKS 45-23 3,565 64 9.0 52.2 26,300 2.0Gayland Ward EXP 9134 3,193 57 8.2 48.7 28,000 1.4Gayland Ward EXP 9135 3,641 65 9.6 52.6 33,800 1.1Gayland Ward EXP 9138 3,598 64 8.3 49.1 26,300 1.6Gayland Ward EXP 9139 3,061 55 9.6 53.3 19,800 2.3NuTech Seed GS 636 3,412 61 9.7 55.1 27,500 1.6NuTech Seed GS 693 2,769 49 9.3 53.5 30,500 1.2Sorghum Partners KS585 3,476 62 7.9 47.7 26,300 1.8Sorghum Partners SP 68M57 4,063 73 9.8 52.6 29,000 1.6Warner Seed W-844E 3,107 55 7.6 47.5 30,000 1.1Scott Seed X50215 3,646 65 10.2 52.6 26,500 1.8Scott Seed X54516 3,269 58 9.2 53.4 27,800 2.2

Mean 3450 62 9.1 51.8 CV 10.1 LSD (0.05) 569

Downstate TrialsApache

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Table 4. Late maturity sorghum hybrids in Apache, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Chromatin CHR0029 2,995 53 9.4 52.6 24,000 2.4Chromatin CHR0072 2,934 52 10.8 52.7 23,000 2.2Chromatin CHR2042 3,375 60 9.9 52.4 27,500 1.8NuTech Seeds GS 725 3,067 55 10.2 52.1 21,300 1.6Sorghum Partners SP 73B12 2,854 51 10.4 50.5 21,500 2.3Sorghum Partners SP 74C40 3,204 57 10.0 54.7 23,500 2.0Sorghum Partners SP7715 3,193 57 9.8 54.0 21,500 2.1

Mean 3,089 55 10.1 52.7 CV 5.8 LSD (0.05) 355

Cooperator: Alan MindemannNo-till planted into wheat residueSoil Series: Grant LoamTarget Population: 55,000 seeds/acHerbicide: 2.7 qt/ac Lumax EZ+1qt glyphosate/acFertilizer: N- 110 lbs/ac P- 0 K- 05 gallons of 10-34-0 applied at plantingPlanting Date: April 27, 2017Harvest Date: August 29, 2017

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Dacoma

Table 5. Early maturity hybrids for the Dacoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Monsanto DKS 28-05 3,585 64 6.2 57.2 22,300 1.9Monsanto DKS 37-07 4,263 76 9.8 59.4 17,500 1.6Gayland Ward GW-1160 3,828 68 10.0 57.2 21,400 2.2Sorghum Partners SP 31A15 3,382 60 8.7 50.7 22,800 1.6

Average 3,765 67 8.7 56.1 CV 10.1 LSD (0.05) 512

Table 6. Medium maturity hybrids for the Dacoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Golden Acres 5613 4,832 86 9.4 55.7 22,700 1.4Golden Acres 3960B 5,689 102 9.7 59.1 21,900 2.2Scott Seed 505X5 3,044 54 6.8 51.6 18,500 2.3Pioneer 84P68 5,230 93 9.6 57.6 19,800 1.7Pioneer 85Y34 3,885 69 8.2 52.5 14,500 2.9Pioneer 86P20 3,346 60 9.2 55.0 16,100 2.5Advanta Seeds ADV G1150 4,132 74 9.1 56.1 22,400 1.4Alta Seeds AG 1203 4,859 87 9.6 59.1 25,100 1.7Alta Seeds AG 1301 5,082 91 9.4 56.8 17,500 2.1Monsanto DKS 38-16 5,158 92 9.7 58.7 16,200 1.8Monsanto DKS 45-23 5,002 89 9.6 59.9 24,000 1.4Gayland Ward EXP 9134 4,465 80 9.4 56.9 23,900 1.3Gayland Ward EXP 9135 4,762 85 9.8 56.7 22,200 1.8Gayland Ward EXP 9138 3,696 66 9.5 55.9 17,500 1.6Gayland Ward EXP 9139 3,673 66 9.8 57.1 16,800 2.8NuTech Seed GS 636 5,206 93 9.9 57.4 19,600 2.6NuTech Seed GS 693 5,304 95 9.5 59.1 22,500 1.5Sorghum Partners KS585 3,743 67 9.4 58.4 16,100 2.3Sorghum Partners SP 68M57 4,888 87 9.6 57.3 20,400 1.4Warner Seed W-844E 4,604 82 9.5 58.9 20,000 1.1Scott Seed X50215 3,721 66 10.1 55.6 18,600 2.3Scott Seed X54516 4,592 82 9.6 57.9 19,300 1.9

Average 4,496 80 9.4 57.0 CV 16.1 LSD (0.05) 1,203

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Table 7. Late maturity sorghum hybrids in Dacoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Chromatin CHR0029 4,615 82 10.0 56.1 22,300 1.4Chromatin CHR0072 4,405 79 9.9 55.5 18,900 1.9Chromatin CHR2042 4,272 76 9.2 56.4 20,800 1.4NuTech Seeds GS 725 4,351 78 9.5 56.8 18,700 1.7Heartland Genetics HG EX1750A 3,678 66 7.4 52.5 16,500 2.6Heartland Genetics HG EX1751B 4,501 80 11.1 54.1 22,100 1.4Sorghum Partners SP 73B12 4,592 82 10.2 57.3 20,400 1.8Sorghum Partners SP 74C40 4,722 84 9.7 57.3 20,800 1.9Sorghum Partners SP7715 4,512 81 10.0 57.2 18,700 2.1

Average 4,405 79 9.7 55.9 CV 6.9 LSD (0.05) 488

Cooperator: Lee LeeperNo-till planted into wheat residueSoil Series: Waynoka Fine Sandy LoamTarget Population: 55,000 seeds/acHerbicide: Atrazine4L 2pt/ac plus 1.3 pt/ac DualFertilizer: N- 100 lbs/ac P- 0 K- 05 gallons of 10-34-0 applied at plantingPlanting Date: May 17, 2017Harvest Date: September 9, 2017

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Homestead

Table 8. Early maturity sorghum hybrids at Homestead, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Monsanto DKS 28-05 2,910 52 11.5 52.6 16,500 2.3Monsanto DKS 37-07 2,054 37 9.6 55.9 11,300 2.1Gayland Ward GW-1160 3,097 55 10.9 56.3 17,100 2.8Sorghum Partners SP 31A15 2,345 42 8.1 58.2 16,500 2.5

Mean 2,602 47 10.0 55.8 CV 18.7 LSD (0.05) 1,015

Table 9. Medium maturity sorghum hybrids at Homestead, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Golden Acres 5613 4,129 74 9.8 55.9 15,900 2.2Golden Acres 3960B 4,439 79 10.1 57.7 17,200 1.6Scott Seed 505X5 3,094 55 12.7 53.2 15,300 2.4Pioneer 84P68 5,678 101 10.1 58.0 16,100 1.9Pioneer 85Y34 3,220 58 10.2 59.9 13,900 2.6Pioneer 86P20 4,081 73 14.0 54.9 14,400 2.4Advanta Seeds ADV G1150 3,809 68 10.1 55.6 11,900 2.9Alta Seeds AG1203 4,364 78 10.3 56.0 12,400 1.9Alta Seeds AG1301 2,824 50 7.3 59.9 11,700 1.5Monsanto DKS 38-16 3,662 65 10.3 57.9 13,100 1.6Monsanto DKS 45-23 5,445 97 10.3 58.3 16,700 2.0Gayland Ward EXP 9134 3,726 66 9.8 57.2 13,200 1.7Gayland Ward EXP 9135 5,014 90 9.7 57.4 15,600 1.3Gayland Ward EXP 9138 3,324 59 11.0 55.3 12,900 2.4Gayland Ward EXP 9139 2,724 49 5.7 28.3 13,300 2.5NuTech Seed GS 636 4,563 82 10.2 56.8 14,300 1.7NuTech Seed GS 693 4,299 77 10.2 57.9 12,800 1.8Sorghum Partners SP 68M57 3,916 70 10.5 57.1 11,200 1.5Warner Seed W-844E 4,663 83 9.9 58.3 15,600 2.1Scott Seed X50215 5,059 90 10.1 57.5 17,400 2.5Scott Seed X54516 4,110 73 10.0 58.7 14,500 2.1

Mean 4,102 73 10.1 55.8 CV 20.1 LSD (0.05) 1,517

Table 10. Late maturity sorghum hybrids in Homestead, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Chromatin CHR0029 4,751 85 9.2 57.0 17,800 2.3Chromatin CHR0072 2,321 42 2.9 58.8 13,200 1.9Chromatin CHR2042 3,551 63 8.1 56.9 16,000 2.5NuTech Seeds GS 725 3,555 64 11.0 56.4 15,800 2.2Heartland Genetics HG EX 1750A 4,300 77 11.9 56.3 15,300 1.7Heartland Genetics HG EX 1751B 4,003 72 12.1 55.0 17,100 2.4Sorghum Partners SP 73B12 4,923 88 13.0 56.3 16,400 1.7Sorghum Partners SP 74C40 4,209 75 12.1 54.7 15,900 1.9Sorghum Partners SP7715 4,620 83 11.9 57.3 16,100 2.0

Mean 4,026 72 10.2 56.5 CV 19.9 LSD (0.05) 1,212

Cooperator: Brook StraderConventional TillSoil Series: Canadian Fine Sandy LoamTarget Population: 55,000 seeds/acHerbicide: Atrazine4L 2pt/ac plus 1.3 pt/ac DualFertilizer: N- 95 lbs/ac P- 0 K- 05 gallons of 10-34-0 applied at plantingPlanting Date: June 12, 2017Harvest Date: October 17, 2017

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Lahoma

Table 11. Early maturity hybrids tested at Lahoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Monsanto DKS 28-05 4,317 77 9.2 55.7 17,200 1.6Monsanto DKS 37-07 3,195 57 9.6 53.1 14,900 2.4Gayland Ward GW-1160 3,006 54 14.4 51.9 13,300 2.8

Average 3,506 63 11.1 53.6 CV 16.8 LSD (0.05) 899

Table 12. Medium maturity hybrids tested at Lahoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Golden Acres 5613 4,464 80 10.0 55.0 25,400 1.8Golden Acres 3960B 3,651 65 10.2 57.0 21,900 1.9Scott Seed 505X5 4,375 78 9.5 57.4 19,800 2.3Pioneer 84P68 5,158 92 10.0 58.0 26,500 1.4Pioneer 85Y34 4,026 72 8.8 56.1 24,000 1.3Pioneer 86P20 4,441 79 9.1 51.9 27,300 1.1Advanta Seeds ADV G1150 4,155 74 9.5 55.5 22,400 1.7Alta Seeds AG 1203 4,502 80 9.9 58.0 26,300 1.5Alta Seeds AG 1301 4,359 78 9.5 57.2 22,500 2.1Monsanto DKS 38-16 4,291 77 9.8 58.9 23,100 2.3Monsanto DKS 45-23 4,340 78 11.1 53.6 22,900 1.5Gayland Ward EXP 9134 4,274 76 10.3 55.9 24,700 1.9Gayland Ward EXP 9135 4,482 80 10.2 56.5 22,600 2.0Gayland Ward EXP 9138 5,972 107 9.6 54.9 28,100 1.5Gayland Ward EXP 9139 5,371 96 9.6 56.2 28,700 1.2NuTech Seed GS 636 3,885 69 10.7 48.3 25,900 2.3NuTech Seed GS 693 4,954 88 9.9 58.3 21,500 1.6Sorghum Partners KS585 3,937 70 9.7 62.0 25,800 2.3Sorghum Partners SP 68M57 4,028 72 11.7 56.6 27,500 1.9Warner Seed W-844E 4,233 76 10.0 54.8 24,600 2.4Scott Seed X50215 4,710 84 9.9 58.0 27,400 1.8Scott Seed X54516 4,679 84 11.5 55.5 24,900 2.4

Average 4,468 80 10.0 56.1 CV 11.8 LSD (0.05) 904

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Table 13. Late maturity hybrids tested at Lahoma, OK. Harvest Grain Yield moisture Test weight Plant Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant

Chromatin CHR0029 5,683 101 10.4 58.1 28,400 1.1Chromatin CHR0072 6,437 115 11.5 55.7 30,100 1.4Chromatin CHR2042 5,524 99 11.0 55.9 26,700 2.5NuTech Seeds GS 725 5,304 95 11.1 52.9 27,200 1.6Heartland Genetics HG EX 1750A 5,662 101 12.5 53.7 28,500 1.8Heartland Genetics HG EX 1751B 5,680 101 11.1 56.9 29,400 1.6Sorghum Partners SP 73B12 5,970 107 9.7 57.3 27,900 1.8Sorghum Partners SP 74C40 5,687 102 12.0 55.2 26,500 1.7Sorghum Partners SP7715 5,482 98 11.9 55.2 28,200 1.2

Average 5,714 102 11.2 55.6 CV 5.7 LSD (0.05) 405

Cooperator: Richard AustinConventional TillSoil Series: Grant Silt LoamTarget Population: 55,000 seeds/acHerbicide: Atrazine4L 2pt/ac plus 1.3 pt/ac DualFertilizer: N- 125 lbs/ac P- 0 K- 0Planting Date: May 18, 2017Harvest Date: September 19, 2017

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Nardin

Table 14. Early maturity hybrid evaluation at Nardin, OK. Grain Yield Moisture Test weightCompany Hybrid lbs/ac bu/ac % lb/bu

Monsanto DKS 28-05 2,894 52 9.3 56.4Monsanto DKS 37-07 3,094 55 7.5 57.6Gayland Ward GW-1160 2,858 51 9.2 54.9Sorghum Partners SP 31A15 2,891 52 8.9 55.8

Average 2,934 52 8.7 56.2 CV 3.7 LSD (0.05) 125

Table 15. Medium maturity hybrid evalution at Nardin, OK. Grain Yield Moisture Test weightCompany Hybrid lbs/ac bu/ac % lb/bu

Golden Acres 5613 3,545 63 8.8 51.4Golden Acres 3960B 3,530 63 8.9 55.6Scott Seed 505X5 2,413 43 8.6 54.8Pioneer 84P68 3,608 64 9.1 50.0Pioneer 85Y34 3,260 58 7.8 58.6Pioneer 86P20 3,218 57 8.4 52.4Advanta Seeds ADV G1150 3,150 56 8.6 50.1Alta Seeds AG 1203 3,707 66 8.8 54.7Alta Seeds AG 1301 3,565 64 8.6 52.7Monsanto DKS 38-16 3,658 65 8.8 55.6Monsanto DKS 45-23 3,686 66 9.5 57.3Gayland Ward EXP 9134 3,394 61 8.4 51.2Gayland Ward EXP 9135 3,570 64 8.6 51.1Gayland Ward EXP 9138 3,024 54 9.6 52.6Gayland Ward EXP 9139 3,026 54 9.4 51.0NuTech Seed GS 636 3,762 67 8.6 53.7NuTech Seed GS 693 3,897 70 9.1 55.7Sorghum Partners KS585 3,207 57 9.0 54.9Sorghum Partners SP 68M57 3,736 67 9.0 53.1Warner Seed W-844E 3,330 59 8.6 52.9Scott Seed X50215 2,850 51 9.4 57.5Scott Seed X54516 3,209 57 8.7 50.9

Average 3,379 60 8.8 53.5 CV 10.4 LSD (0.05) 517

CR-2162.15

Cooperator: Tom EakinsConventional TillSoil Series: Kirkland Silt LoamTarget Population: 55,000 seeds/acHerbicide: Atrazine4L 2pt/ac plus 1.3 pt/ac DualFertilizer: N- 85 lbs/ac P- 0 K- 0Planting Date: April 28, 2017Harvest Date: September 12, 2017

Table 16. Late maturity hybrid evaluation at Nardin, OK. Grain Yield Moisture Test weightCompany Hybrid lbs/ac bu/ac % lb/bu

Chromatin CHR0029 3120 56 10.7 55.4Chromatin CHR0072 3342 60 9.8 59.4Chromatin CHR2042 3850 69 9.7 59.0NuTech Seeds GS 725 3207 57 9.6 58.3Heartland Genetics HG EX 1750A 3236 58 10.0 56.1Heartland Genetics HG EX 1751B 2698 48 15.3 57.9Sorghum Partners SP 73B12 3365 60 10.4 58.1Sorghum Partners SP 74C40 3306 59 9.8 57.7Sorghum Partners SP7715 2843 51 15.2 55.4

Average 3219 57 11.1 57.5 CV 10.2 LSD (0.05) 469

CR-2162.16

Tipton

Table 17. Early maturity sorghum hybrids at Tipton, OK. Harvest Test Plant Bird Grain Yield moisture weight Population Head Count DamageCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant %

Monsanto DKS 28-05 3,459 62 6.4 54.1 35,500 1.8 20Monsanto DKS 37-07 5,210 93 9.5 57.3 19,500 2.3 10Sorghum Partners SP 31A15 4,854 87 8.1 50.0 31,300 1.5 10

Mean 4,507 80 8.0 53.8 CV 20.5 LSD (0.05) 1,235

Table 18. Medium maturity sorghum hybrids at Tipton, OK. Harvest Test Plant Bird Grain Yield moisture weight Population Head Count DamageCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant %

Golden Acres 5613 3,671 66 9.0 55.6 26,500 1.9 20Golden Acres 3960B 3,879 69 9.2 58.8 30,500 2.1 15Pioneer 84P68 6,347 113 9.0 57.1 34,800 1.5 5Pioneer 85Y34 5,617 100 8.4 51.2 31,800 2.4 5Pioneer 86P20 5,323 95 8.9 56.4 32,300 2.1 10Advanta ADV G1150 4,905 88 8.7 55.0 28,500 1.5 5Alta Seeds AG 1203 5,307 95 9.4 57.7 29,800 2.0 5Alta Seeds AG 1301 4,726 84 9.2 57.7 31,800 2.4 10Monsanto DKS 38-16 5,116 91 9.5 57.9 26,500 2.6 10Monsanto DKS 45-23 4,885 87 9.5 58.5 33,300 1.7 5NuTech Seed GS 636 4,801 86 9.3 57.9 36,000 1.5 10NuTech Seed GS 693 4,672 83 9.3 57.9 34,800 1.3 5Sorghum Partners KS585 5,428 97 9.0 55.7 30,500 1.9 5Sorghum Partners SP 68M57 6,104 109 9.6 58.4 34,800 1.6 10Warner Seed W-844E 4,662 83 9.4 56.8 35,800 1.3 5

Mean 5,030 90 9.2 56.8 CV 14.2 LSD (0.05) 1,085

CR-2162.17

Panhandle TrialsAdams

Table 20. Early maturity sorghum hybrids in Adams, OK. Harvest Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/ac Heads/Plant

Monsanto DKS 28-05 5736 102 10.0 53.4 9,000 3.4Monsanto DKS 37-07 4815 86 11.0 56.8 16,500 1.7Gayland Ward GW-1160 5864 105 11.2 56.6 11,500 2.9Richardson Seed RS 120 6844 122 11.6 57.1 23,500 1.7Richardson Seed RS 320 5022 90 11.1 57.8 20,500 2.1Sharp Brother Seed SB 3117 5561 99 11.3 56.3 11,000 3.4Sharp Brother Seed SB 3217 6141 110 10.8 57.3 6,000 4.1Sorghum Partners SP 31A15 5161 92 10.1 56.3 8,500 3.5Richardson Seed Swift 5598 100 10.2 54.2 14,500 2.2

Mean 5638 101 10.8 56.2 CV 11.0 LSD (0.05) 1142

Table 21. Medium maturity sorghum hybrids in Adams, OK. Harvest Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/ac Heads/Plant

Golden Acres 5613 8639 154 10.9 56.4 23,500 1.7Golden Acres 3960B 8305 148 11.2 57.7 22,000 2.1Scott Seed 505x5 6237 111 10.6 55.6 19,500 2.3Pioneer 84P68 6904 123 11.7 55.8 23,500 1.5Pioneer 85Y34 7237 129 10.0 53.0 22,500 2.0Pioneer 86P20 8332 149 10.8 56.8 15,500 2.2Advanta ADV G1150 8118 145 11.4 55.7 17,500 1.9Alta Seeds AG 1201 4564 82 10.8 55.5 17,000 2.1Alta Seeds AG 1301 7072 126 11.4 56.5 27,000 1.7Alta Seeds AG 1203 7298 130 9.8 56.3 12,500 2.9Monsanto DKS 38-16 7232 129 11.6 59.5 20,500 1.8Monsanto DKS 45-23 8289 148 12.2 55.3 21,000 1.7NuTech Seed GS636 9241 165 11.1 57.6 22,500 2.1NuTech Seed GS693 8135 145 10.9 54.0 17,500 1.8Sorghum Partners KS585 7259 130 10.8 53.8 20,500 1.9Richardson Seeds Ltd. RS 215 5109 91 11.3 53.2 22,500 2.1Sharp Brothers Seed SB 4117 8581 153 12.1 57.8 19,500 2.2Sorghum Partners SP 68M57 7731 138 11.8 56.2 21,500 1.5Warner Seed W-844E 8281 148 10.9 55.9 11,500 2.4Scott Seed X50215 7015 125 11.4 57.3 13,000 2.9Scott Seed X54516 7627 136 10.7 56.3 20,000 1.7

Mean 7486 134 11.1 56.0 CV 15.2 LSD (0.05) 2042

CR-2162.18

Table 19. Late maturity sorghum hybrids in Tipton, OK. Harvest Test Plant Bird Grain Yield moisture weight Population Head Count DamageCompany Hybrid lbs/ac bu/ac % lbs/bu Plants/Acre Heads/Plant %

Chromatin CHR0029 7,288 130 9.7 57.1 35,500 2.4 10Chromatin CHR0072 7,311 131 9.4 57.9 32,800 1.5 10Chromatin CHR2042 7,037 126 9.7 57.3 29,800 1.9 15Monsanto DKS 51-01 7,414 132 9.5 57.7 41,500 2.0 5NuTech Seeds GS 725 5,235 93 9.8 58.0 34,000 2.4 10Sorghum Partners SP 73B12 6,543 117 10.1 58.3 30,000 2.0 10Sorghum Partners SP 74C40 6,915 123 9.7 57.9 35,300 1.9 5Sorghum Partners SP7715 7,138 127 9.8 58.4 36,000 1.8 5

Mean 6,860 123 9.7 57.8 CV 10.4 LSD (0.05) 896

Cooperator: Gary StricklandConventional TillSoil Series: Tipton LoamTarget Population: 55,000 seeds/acHerbicide: Cinch ATZ 2qt/acFertilizer: N- 80 lbs/ac; P- 20 lbs/ac5 gallon/ac 10-34-0 with the planterPlanting Date: April 11, 2017Harvest Date: August 28, 2017

CR-2162.19

Table 22. Late maturity sorghum hybrids in Adams, OK.

Harvest Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/ac Heads/Plant

Chromatin CHR0029 7,041 126 13.2 54.4 19,000 2.4Chromatin CHR0072 8,231 147 11.2 55.1 18,500 2.7Chromatin CHR2042 9,054 162 11.6 55.3 17,000 2.2NuTech Seeds GS725 8,936 160 11.7 57.2 13,000 2.6Heartland Genetics HG EX 1750A 9,028 161 11.9 55.0 18,000 2.4Heartland Genetics HG EX 1751B 7,306 130 13.0 54.3 21,000 1.9Sorghum Partners SP 73B12 8,703 155 13.2 54.7 24,000 1.7Sorghum Partners SP 74C40 7,886 141 12.9 55.0 16,500 1.5Sorghum Partners SP7715 9,440 169 12.0 58.0 18,500 1.8 Mean 8,403 150 12.3 55.4 CV 10.0 LSD (0.05) 1,478

Cooperator: Kenneth RoseNo-till following wheatSoil Series: Sherm Clay LoamTarget Population: 55,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/acFertilizer: N- 130 lbs N/ac5 gal/ac 10-34-0 with the planterPlanting Date: June 10, 2017Harvest Date: November 8, 2017

CR-2162.20

Goodwell Drip Irrigated

Table 23. Early maturity sorghum hybrids in Goodwell, OK drip irrigated. Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Monsanto DKS 28-05 7,033 126 17.9 55.4 18,600 2.1Monsanto DKS 37-07 9,194 164 15.8 55.3 21,200 1.6Gayland Ward GW-1160 6,798 121 16.8 57.0 19,700 2.0Richardson Seed RS 120 7,729 138 16.5 58.5 18,100 1.9Richardson Seed RS 320 8,307 148 16.4 58.1 19,500 1.8Sharp Brother Seed SB 3117 9,161 164 16.5 56.0 21,500 2.2Sharp Brother Seed SB 3217 7,473 133 17.7 58.5 19,900 2.0Sorghum Partners SP 31A15 7,932 142 17.0 57.8 21,800 1.8Richardson Seed Swift 8,760 156 19.5 55.4 20,800 1.6

Mean 8,043 144 17.1 56.9 CV 10.9 LSD (0.05) 1,102

Table 24. Medium maturity sorghum hybrids in Goodwell, OK drip irrigated. Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Golden Acres 5613 8,537 152 17.4 56.0 29,600 2.1Golden Acres 3960B 7,693 137 19.5 55.8 31,100 1.7Scott Seed 505x5 7,782 139 19.7 57.3 29,200 1.6Pioneer 84P68 7,816 140 18.3 51.3 31,300 1.8Pioneer 85Y34 8,106 145 20.9 55.3 27,800 2.2Pioneer 86P20 8,396 150 18.4 58.3 30,800 1.9Advanta ADV G1150 7,970 142 19.5 56.7 32,100 1.6Alta Seed AG 1201 8,396 150 19.0 57.0 30,500 1.8Alta Seed AG 1301 7,774 139 18.7 52.1 31,400 2.0Alta Seed AG 1203 7,005 125 18.1 57.4 32,500 1.5Alta Seed AG 3201 8,078 144 14.9 52.0 29,900 1.9Monsanto DKS 38-16 10,194 182 16.4 55.7 30,600 2.1Monsanto DKS 45-23 7,965 142 18.7 57.3 31,400 1.9Gayland Ward EXP 9134 7,550 135 19.2 53.9 30,000 1.8Gayland Ward EXP 9135 6,933 124 16.5 56.8 31,200 1.4Gayland Ward EXP 9138 8,093 145 18.2 55.0 30,700 1.7Gayland Ward EXP 9139 7,612 136 18.8 56.7 29,900 2.1NuTech Seed GS 636 8,504 152 18.0 54.9 30,600 2.0NuTech Seed GS 693 7,321 131 18.8 55.9 31,600 1.8Sorghum Partners KS585 8,381 150 17.8 54.8 32,200 1.6Richardson Seed RS 215 8,384 150 16.9 57.5 28,400 2.1Sharp Brothers Seed SB 4117 7,354 131 18.5 57.1 29,100 1.7Sorghum Partners SP 68M57 8,046 144 16.4 54.6 31,000 1.6Warner Seed W-844E 7,503 134 19.4 54.3 30,500 1.5Scott Seed X50215 8,102 145 17.0 57.9 29,800 1.8Scott Seed X54516 6,820 122 20.3 56.8 24,700 2.6

Mean 7,935 142 18.3 55.7 CV 8.4 LSD (0.05) 946

CR-2162.21

Table 25. Late maturity sorghum hybrids in Goodwell, OK drip irrigated. Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Chromatin CHR2042 7,994 143 17.3 57.6 21,400 2.7Chromatin CHR0029 8,111 145 19.9 56.9 27,200 1.9Chromatin CHR0072 9,517 170 19.9 54.1 26,600 2.2Monsanto DKS 51-01 8,971 160 19.6 57.5 28,100 2.3Monsanto DKS 53-53 7,624 136 19.0 56.9 24,500 2.0NuTech Seed GS 725 9,336 167 19.7 58.1 29,300 1.9Heartland Genetics HG EX 1750A 8,262 148 18.1 56.5 25,100 2.3Heartland Genetics HG EX 1751B 7,204 129 20.0 56.5 26,800 1.8Sorghum Partners SP7715 7,499 134 20.4 55.8 27,400 2.0Sorghum Partners SP 73B12 8,648 154 16.4 57.3 26,900 1.9Sorghum Partners SP 74C40 8,327 149 18.9 56.9 26,300 1.6

Mean 8,318 149 19.0 56.7 CV 9.0 LSD (0.05) 921

Cooperator: Cameron MurleyNo-till following wheatSoil Series: Gruver Clay LoamTarget Population: 55,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac+1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 150 lbs N/ac5 gal/ac 10-34-0 with the planterPlanting Date: June 14, 2017Harvest Date: November 1, 2017

CR-2162.22

Goodwell Dryland

Table 26. Early maturity sorghum hybrids in Goodwell, OK dryland. Company Hybrid Grain Yield Harvest moisture Test weight Plant Population lbs/ac bu/ac % lbs/bu plants/acre

Monsanto DKS 28-05 5,684 101 12.0 54.7 14,800Monsanto DKS 37-07 6,511 116 11.8 56.1 12,600Gayland Ward GW-1160 6,852 122 11.3 55.2 13,500Richardson Seed RS 120 5,347 95 10.5 55.3 11,500Richardson Seed RS 320 5,560 99 10.6 54.9 10,900Sharp Brother Seed SB 3117 6,255 112 10.9 54.3 12,700Sharp Brother Seed SB 3217 6,717 120 11.1 54.7 11,800Sorghum Partners SP 31A15 4,657 83 8.9 58.6 12,100Richardson Seed Swift 5,822 104 10.7 55.6 10,400

Mean 5,934 106 10.9 55.5 CV 12.0 LSD (0.05) 1,301

Table 27. Medium maturity sorghum hybrids in Goodwell, OK dryland. Company Hybrid Grain Yield Harvest moisture Test weight Plant Population lbs/ac bu/ac % lbs/bu plants/acre

Golden Acres 5613 7,066 126 12.0 55.2 16,800Golden Acres 3960B 6,691 119 12.3 55.1 14,700Scott Seed 505x5 6,583 118 11.5 54.7 15,300Pioneer 84P68 6,486 116 11.8 55.3 12,600Pioneer 85Y34 6,634 118 12.7 55.1 13,800Pioneer 86P20 6,897 123 11.6 56.3 12,200Advanta ADV G1150 7,729 138 10.8 54.2 11,400Alta Seed AG 1201 6,458 115 12.5 56.2 12,600Alta Seed AG 1301 7,363 131 13.3 55.4 10,800Alta Seed AG 1203 7,161 128 12.3 55.7 12,300Monsanto DKS 38-16 7,202 129 11.9 56.0 14,000Monsanto DKS 45-23 7,255 130 11.7 55.3 12,800NuTech Seed GS 636 7,376 132 12.3 55.2 16,200NuTech Seed GS 693 7,031 126 11.5 54.9 11,800Sorghum Partners KS585 5,833 104 10.9 56.1 12,500Richardson Seed RS 215 7,525 134 12.6 54.9 13,100Sharp Brother Seed SB 4117 7,425 133 12.8 54.4 14,100Sorghum Partners SP 68M57 7,447 133 12.5 55.0 13,700Warner Seed W-844E 7,208 129 12.2 54.6 12,600Scott Seed X50215 6,861 123 12.3 56.4 15,200Scott Seed X54516 6,984 125 12.3 54.6 11,900

Mean 7,010 125 12.1 55.3 CV 6.4 LSD (0.05) 778

CR-2162.23

CR-2162.24

Table 28. Late maturity sorghum hybrids in Goodwell, OK dryland. Company Hybrid Grain Yield Harvest moisture Test weight Plant Population lbs/ac bu/ac % lbs/bu plants/acre

Chromatin CHR0029 7073 126 14.5 54.5 18,900Chromatin CHR0072 6874 123 15.5 54.0 13,300Chromatin CHR2042 7675 137 14.4 55.3 14,700NuTech Seed GS 725 6828 122 13.5 54.9 14,100Heartland Genetics HG EX 1750A 8046 144 14.8 55.2 15,700Heartland Genetics HG EX 1751B 7967 142 14.4 54.9 17,100Sorghum Partners SP 73B12 7392 132 14.6 56.9 14,600Sorghum Partners SP 74C40 7820 140 13.7 55.4 15,100Sorghum Partners SP7715 7473 133 14.3 55.9 13,200

Mean 7,461 133 14.4 55.2 CV 6.1 LSD (0.05) 655

Cooperator: Cameron MurleyTillage: Strip-tillSoil Series: Gruver Clay LoamTarget Population: 55,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac+1 qt/ac Glypho-sate+ 2oz/ac HuskieFertilizer: N- 150 lbs N/ac5 gal/ac 10-34-0 with the planterPlanting Date: June 14, 2017Harvest Date: November 3, 2017

CR-2162.25

Keyes

Table 29. Early maturity sorghum hybrids in Keyes, OK. Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Monsanto DKS 28-05 7,756 138 12.2 57.6 17,400 2.4Monsanto DKS 37-07 7,800 139 12.8 57.8 8,900 3.9Gayland Ward GW-1160 9,534 170 12.6 58.1 15,300 2.7Richardson Seed RS 120 8,461 151 13.0 60.1 12,800 3.6Richardson Seed RS 320 7,343 131 12.6 59.6 17,700 2.9Sharp Brother Seed SB 3117 6,395 114 12.8 59.8 17,100 2.6Sharp Brother Seed SB 3217 7,912 141 12.6 59.4 18,300 2.9Sorghum Partners SP 31A15 9,670 173 11.8 55.9 16,900 3.1Richardson Seed Swift 5,892 105 12.2 57.5 14,800 3.6

Mean 7,862 140 12.5 58.4 CV 16.1 LSD (0.05) 1,782

Table 30. Medium maturity sorghum hybrids in Keyes, OK.

Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Golden Acres 5613 9,777 175 12.6 59.2 19,400 2.2Golden Acres 3960B 9,121 163 12.7 60.0 18,500 2.6Scott Seed 505x5 6,850 122 12.5 58.6 16,900 2.4Pioneer 84P68 10,049 179 12.7 59.5 18,100 2.1Pioneer 85Y34 8,354 149 11.9 56.6 18,200 2.0Pioneer 86P20 9,582 171 12.6 60.7 22,100 1.7Advanta ADV G1150 9,500 170 12.3 58.1 19,000 2.3Alta Seed AG 1201 7,709 138 12.3 57.4 19,300 2.2Alta Seed AG 1203 10,240 183 12.8 60.6 18,900 2.7Alta Seed AG 1301 9,367 167 12.4 58.2 18,100 1.8Monsanto DKS 38-16 9,788 175 13.0 62.1 15,500 2.6Monsanto DKS 45-23 10,511 188 12.6 59.0 17,700 2.1NuTech Seed GS 636 9,385 168 12.7 58.6 17,300 2.3NuTech Seed GS 693 9,860 176 12.6 60.1 21,500 1.9Sorghum Partners KS585 8,841 158 12.7 60.2 19,800 2.4Richardson Seed RS 215 8,565 153 12.4 59.0 16,300 3.1Sharp Brother Seed SB 4117 8,216 147 12.8 60.1 16,400 2.6Sorghum Partners SP 68M57 10,975 196 12.8 60.2 19,100 1.8Warner Seed W-844E 8,839 158 12.5 58.7 18,900 2.4Scott Seed X50215 8,534 152 12.5 58.5 16,900 3.0Scott Seed X54516 9,146 163 12.5 58.3 19,200 2.8

Mean 9,200 163 12.6 59.2 CV 10.5 LSD (0.05) 1,612

CR-2162.26

Table 31. Late maturity sorghum hybrids in Keyes, OK. Harvest Plant Grain Yield moisture Test weight Population Head CountCompany Hybrid lbs/ac bu/ac % lbs/bu plants/acre Heads/Plant

Chromatin CHR0029 9440 169 13.3 57.8 17,900 2.8Chromatin CHR0072 8779 157 12.7 58.1 14,100 3.0Chromatin CHR2042 9513 170 13.0 58.9 18,500 2.1NuTech Seed GS 725 8888 159 13.1 59.1 20,400 1.9Heartland Genetics HG EX 1750A 8930 159 13.2 58.3 17,500 2.6Heartland Genetics HG EX 1751B 9312 166 13.2 57.8 14,900 2.8Sorghum Partners SP 73B12 9986 178 13.9 59.9 14,900 3.1Sorghum Partners SP 74C40 9919 177 13.3 59.1 21,500 1.7Sorghum Partners SP7715 10416 186 13.3 59.6 16,800 2.5

Mean 9465 169 13.2 58.7 CV 5.9 LSD (0.05) 722

Cooperator: Leon RichardConventional TillSoil Series: Dalhart Fine Sandy LoamTarget Population: 55,000 seeds/acHerbicide: Cinch ATZ Lite 2 qts/ac+1 qt/ac Glyphosate+ 2oz/ac HuskieFertilizer: N- 80 lbs N/ac5 gal/ac 10-34-0 with the planterPlanting Date: June 1, 2017Harvest Date: November 2, 2017

CR-2162.27

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CR-2162.28

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies: Director of Equal Opportunity. Any person (student, faculty, or staff) who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154. Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Director of Oklahoma Cooperative Extension Service, Oklahoma State University, Stillwater, Oklahoma. This publication is printed and issued by Oklahoma State University as authorized by the Vice President, Dean, and Director of the Division of Agricultural Sciences and Natural Resources and has been prepared and distributed at a cost of 80 cents per copy. Revised 0118 GH.

The Oklahoma Cooperative Extension Service Bringing the University to You!

• It provides practical, problem-oriented education for people of all ages. It is designated to take the knowledge of the university to those persons who do not or cannot participate in the formal classroom instruction of the university.

• It utilizes research from university, government, and other sources to help people make their own decisions.

• More than a million volunteers help multiply the impact of the Extension professional staff.

• It dispenses no funds to the public.

• It is not a regulatory agency, but it does inform people of regulations and of their options in meeting them.

• Local programs are developed and carried out in full recognition of national problems and goals.

• The Extension staff educates people through personal contacts, meetings, demonstrations, and the mass media.

• Extension has the built-in flexibility to adjust its programs and subject matter to meet new needs. Activities shift from year to year as citizen groups and Extension workers close to the problems advise changes.

The Cooperative Extension Service is the largest, most successful informal educational organization in the world. It is a nationwide system funded and guided by a partnership of federal, state, and local governments that delivers information to help people help themselves through the land-grant university system.

Extension carries out programs in the broad catego-ries of agriculture, natural resources and environ-ment; family and consumer sciences; 4-H and other youth; and community resource development. Exten-sion staff members live and work among the people they serve to help stimulate and educate Americans to plan ahead and cope with their problems.

Some characteristics of the Cooperative Extension system are:

• The federal, state, and local governments cooperatively share in its financial support and program direction.

• It is administered by the land-grant university as designated by the state legislature through an Extension director.

• Extension programs are nonpolitical, objective, and research-based information.