Hybrid Corn Hettinger
 
Silage   Grain Yield
Brand Hybrid Relative matur. Harvest moist. 1998 1999 Test weight 1998 1999
  days % -----Tons/ac*----- lbs/bu -----bu/ac**-----
Dekalb DK440 94 57 2.83 6.59 47.5 57.8 69.4
Dekalb DK405 90 64   5.72 49.7   76.9
Dekalb DK427 92 67   5.98 49.4   75.9
Dekalb DK389BtY 88 68   4.98 52.0   62.4
G.Harvest H6726 92 59   5.93 50.1   58.9
G.Harvest H2263 90 64   4.64 50.3   54.6
IS/Payco 4X85 85 61 3.12 4.89 52.8 40.5 57.8
IS/Payco X417 91 69   4.64 50.8   62.2
IS/Payco 4X309 85 60   5.60 53.4   55.5
Kaystar KX405 90 66   5.28 49.0   65.1
Kaystar KX288 82 62   5.16 49.2   60.0
Proseed 185 85 71 5.69 4.11 47.9 38.3 49.6
Proseed 4828 82 63   4.64 55.9   46.5
Trial Mean   2.69 5.24 50.6 37.9 61.1
C.V. %   13.0 13.8 1.7 28.4 12.7
LSD .05   0.58 1.22 1.4 17.8 13.0
LSD .01   0.77 1.65 1.9 NS 17.6

Planting date: May 18, 1999
Seeding rate: 21,000 seeds/acre, thinned to 18,000 plants/acre.
Row spacing: 28"
Previous crop: 1998 = fallow, 1999 = Canola.
*Silage yields are adjusted to 0% moisture.
**Grain yields are adjusted to 13.5% moisture.
NS = no statistical difference between hybrids.
Harvest date: Silage - September 15, 1999
Grain - October 14, 1999
Notes: Corn sustained a killing frost prior to full grain maturity (black layer).

Back to 1999 Variety Data

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