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Hybrid Nameᵃ


Sorghum Partners NK5418 Triumph TR452 Mycogen 1G600 Triumph TR448


Triumph TRX84732 Mycogen M3838 Check 399x2737 Average


Mycogen 1G557 Triumph TR424


DEKALB DKS28-05 DEKALB DKS29-28


Sorghum Partners SP3303 Sorghum Partners 251 Sorghum Partners KS310 Sorghum Partners K35-Y5 ASGROW Pulsar Triumph TR452


DEKALB DKS37-07


Sorghum Partners NK5418 Mycogen M3838 Average


Sorghum Partners KS310 DEKALB/Asgrow DKS29-28 DEKALB/Asgrow DKS28-05 Triumph TR424 Pioneer 88P68


Sorghum Partners 251 DEKALB/Asgrow Pulsar DEKALB/Asgrow DKS37-07 Sorghum Partners SP3303 AERC CGSH-8 Triumph TR420


Sorghum Partners NK5418 Sorghum Partners K35-Y5 Average


Dryland Grain Sorghum Variety Trial at Walsh, Colorado, continued Ht (in)


EMERG 50% Bloom 50% Mature Maturity Groupᵇ


6 8 7 7 8 8 7 7


72 72 73 72 72 72 83 68


67 64 63 66 66 59 70 71 69 73 72 73 74 68


118 119 123 122 120 122 131 116


111 108 107 110 109 102 112 115 113 116 117 116 120 112


-- -- -- -- -- -- -- -- -- -- -- -- -- --


ML


M 43 M 46 M 45 M 43 M 47 M 43 42 42


E E E E E E


ME ME ME


40 39 48 39 40 38 45 42 46


Population plants/A


29,800 24,400 29,400 29,400 19,400 24,800 21,300 27,183


Dryland Grain Sorghum Variety Trial at Brandon, Colorado 13 10 12 13 13 10 13 13 11 10 13 13 10 12


ME


-- -- -- -- -- -- -- -- -- -- -- -- -- --


-- -- -- -- -- -- -- -- -- -- -- -- -- --


M 47 M 46 M 42 M 42 43


36 32 36 34 35 30 34 35 34 36 33 33 33 34


24.7 24.1 25.1 28.9 23.7 26.1 29.3 22.3 20.2 31.7 29.6 31.4 18.1 25.6


Dryland Grain Sorghum Variety Trial at Akron, Colorado 74 70 65 70 69 65 73 78 75 66 68 81 76 71


-- -- -- -- -- -- -- -- -- -- -- -- -- --


Test Weight (lb/bu)


61 61 59 61 61 60 59 60


57 58 55 58 58 60 55 55 55 57 57 55 58 57


51.3 52.2 49.1 51.5 55.0 53.0 49.9 48.8 53.5 48.4 54.4 48.2 48.6 51.1


Yield (bu/A)


112.3 108.3 95.0 92.6 89.1 88.2


101.2 89.3


78 76 70 69 60 55 79 72 70 66 61 60 48 66


53.4 52.0 50.8 50.0 44.7 43.7 43.4 43.3 41.9 37.5 37.4 36.1 34.2 43.7


Yield % of Avg


126 121 106 104 100 99


113 --


116 114 105 103 89 81


118 108 104 98 91 90 71 --


-- -- -- -- -- -- -- -- -- -- -- -- -- --


Walsh, Colorado - LSD (0.20) = 6.5. (a) Yields corrected to 14.0% moisture, (b) Maturity Group: E, early; ME, medium early; M, medium; ML, medium late. Site Information: Cooperator - Plainsman Research Center; Planted: 6/2/2010; Harvested: 1/1/2010; Planting Rate: 43,600 plants/acre; Previous Crop: Wheat; Fertilizer: N-P-K-Zn (50-20-0-.3) lbs/


ac; Herbicide: Preemergence-24 oz/ac of glyphosate and .5 lbs/ac of 2,4-D, Postemergence-4 oz/ac of Banvel, 1 lb/ac of Atrazine, and 32 oz/ac of COC; Soil Type: Silty Loam


Brandon, Colorado - LSD (0.20) = 15.2 for yield. Planted: June 4; Harvested: October 28, 2010. Yields are adjusted to 14.0% seed moisture content. DAP: Days After Planting or maturation of seed at fi rst freeze. Seed Maturation: EM, early milk; MM, mid milk; LM, late milk; ED, early dough; SD, soft dough; HD, hard dough; mature (DAP).


Maturity Group: E, early; ME, medium early; M, medium; ML, medium late; L, late.


Akron, Colorado - LSD (0.30) = 6.4, LSD (0.05) = 12.4. (a) Yields corrected to 14% moisture, (b) Lodging score of zero means no lodging, and 10 means completely lodged. (c)LSD0.30 is most useful for producers using these results to select a variety but some collaborators fi nd LSD0.05 useful. Experimental Design: randomized com- plete block design with four replications. Plot size: 5’ x 30’. Site Information: Collaborator - Central Great Plains Research Station; Planting Date: 5/27/2010; Harvest Date: 10/27/2010; Previous Crop:Proso Millet; Fertilizer: 40 lbs/ac of N; Herbicide: Lumax and Round-Up; Soil Type: Rago Silt Loam


Note: Some variability in the trial was due to drought and high temperatures during the fl owering and grain fi ll stages (about 56 days in duration). During these stages, there were 18 days where the temperature was above 90 degrees and 49 days with no measurable rainfall.


Contact: Kevin Larson, Plainsman Research Station, Walsh, Colo., (719) 324-5643 24 SORGHUM Grower Winter 2011


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