The Georgia Agricultural Experiment Station
College of Agricultural and Environmental Sciences
The University of Georgia

2001 Soybean, Sorghum Grain and Silage, Grain Millet, and Summer Annual Forages Performance Tests
Research Report Number 676
January 2002

Griffin, Georgia:
Early-Planted Sorghum Hybrids for Silage, 2001, Irrigated
Company or Hybrid Name Forage Yields Plant Dry 2-Yr. Avg
Brand Name   or Number Dry Green Height Matter IVDMD1 Dry Yield
--- tons/acre --- in % % tons/acre
NK             SS405             7.7  37.2 128.0 21 . .
Seed Resource F-97-1            6.7  27.4   96.8 25 . .
Pennington Pennsilage        6.7  31.4 112.8 21 . .
Moss           Millennium BMR 6.4  28.4 105.8 22 . .
Southland Dairy Master BM 6.3  26.1 105.4 24 . .
Southland Silo Master D 5.7  30.2 116.5 19 . 9.5
SS SS-85F   5.7  25.2 101.3 23 . 8.4
Moss  4Ever Green 5.1  36.6 115.5 14 . .
Seed Resource F-00-3            3.8  17.6 104.4 21 . .
Average                    6.02  28.9 109.6 21 . 9.0
LSD at 10% Level 1.2 5.2 9.4 2   N.S.3
Std. Err. of Entry Mean 0.6 2.0 3.9 1   0.7
1.  IVDMD (in vitro dry matter disappearance) is an indicator of quality and is positively related to animal
     digestibility (higher values indicate higher digestibility).  Samples used for IVDMD determination were
     collected for all entries of a replicated trial at the same state of reproductive development (soft dough).
2.  CV = 15.9% and df for EMS = 24.
3.  The F-test indicated no statistical differences at the alpha = .10 probability lever; therefore, a LSD value was
     not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted: May 24, 2001.
Harvested: August 16, 2001.
Seeding Rate: 125,000 seed/acre in 30" rows.
Soil Type: Cecil sandy clay loam.
Soil Test: P = High, K = Medium, and pH = 7.55.
Fertilization: Preplant:  28 lb N, 56 lb P2O5, and 84 lb K2O/acre.  Sidedress:  100 lb N/acre.
Previous Crop: Soybean.
Management: Chisel plowed, disked, and rototilled; Aatrex and one cultivation used for weed control;
irrigated 3.0 inches.
Test conducted by P. A. Rose.
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