The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 697
December 2004
SORGHUM FOR SILAGE
Tifton, Georgia:
Early-Planted Sorghum Hybrids for Silage, 2004, Irrigated
Company or
Brand Name
Hybrid Name
or Number
Forage Yields
Dry
Green
--- tons/acre ---
Plant
Height
in
Dry
Matter
%
IVDMD1
%
Disease2
2-Yr. Avg
Dry Yield
tons/acre
Seed Resource
Sorghum Partners
Seed Resource
Moss
Sorghum Partners
FS555
SS506
FS515HQ
4Ever Green
SS405
7.6
6.8
6.6
6.6
6.5
39.1
32.1
32.9
37.1
30.4
128.0
126.8
92.0
114.5
127.2
20
21
20
18
22
52.9
47.8
54.2
43.3
47.1
2.0
3.0
1.0
1.3
3.0
.
.
.
.
.
SS
Southern States
Sorghum Partners
Seed Resource
Sorghum Partners
SS-85F
SS1515F
1990
FS575
NK300
6.5
6.1
6.1
5.9
5.6
31.5
28.5
29.2
29.6
28.6
114.8
95.0
120.0
127.5
99.0
20
21
21
20
20
50.8
50.8
48.4
59.1
48.5
1.3
1.0
1.8
1.3
1.0
.
.
.
.
.
Moss
Moss
4Ever Green BMR
Millennium BMR
5.0
4.7
29.3
21.5
107.5
120.3
17
21
56.4
66.6
1.8
1.3
.
.
6.2 3
1.3
0.5
30.8
6.0
2.5
114.4
9.5
4.0
20
2
1
52.2
4.6
1.9
1.6
0.5
0.2
.
Average
LSD at 10% Level
Std. Err. of Entry Mean
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. Rated: 1 = resistant to 5 = susceptible to foliar diseases.
3. CV = 17.8% and df for EMS = 33.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
May 4, 3004.
Harvested:
July 21, 2004.
Seeding Rate:
150,000 seed/acre in 30" rows.
Soil Type:
Tifton loamy sand.
Soil Test:
P = Medium, K = Low, and pH = 6.1.
Fertilization:
Preplant: 40 lb N, 80 lb P2O5, and 120 lb K2O/acre. Sidedress: 60 lb N/acre.
Previous Crop: Wheat.
Management:
Paratilled, disked, and rototilled; Prowl, Atrazine, and one cultivation used for weed control;
Chlorpyrifos used for insect control; Nemacur used for nematode control.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and R. Burton.
The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia
Research Report Number 697
December 2004
Griffin, Georgia:
Early-Planted Sorghum Hybrids for Silage, 2004, Irrigated
Company or
Brand Name
Hybrid Name
or Number
Forage Yields
Dry
Green
--- tons/acre ---
Plant
Height
in
Dry
Matter
%
IVDMD1
%
2-Yr. Avg
Dry Yield
tons/acre
Sorghum Partners
Sorghum Partners
Sorghum Partners
Moss
Sorghum Partners
SS405
SS506
1990
4Ever Green
NK300
9.6
9.4
9.2
9.1
8.6
34.3
34.8
35.3
46.3
32.2
157.3
141.5
139.5
127.3
105.5
28
27
26
20
27
35.2
34.1
31.3
31.9
44.1
9.3
8.5
8.3
9.1
7.7
Seed Resource
Seed Resource
SS
Moss
Seed Resource
FS555
FS515HQ
SS-85F
4Ever Green BMR
FS575
7.6
7.5
7.3
7.1
7.0
34.5
30.9
31.0
36.2
31.1
149.3
100.8
112.5
114.5
142.8
22
24
23
20
22
38.9
40.5
41.6
37.1
38.0
7.0
.
6.7
6.5
6.7
Southern States
Moss
SS1515F
Millennium BMR
6.7
5.3
26.6
22.2
99.5
129.0
25
24
40.4
49.4
6.9
5.1
7.9 2
1.7
0.7
33.0
4.9
2.1
126.6
9.7
4.1
24
3
1
38.5
7.3
2.9
7.4
1.0
0.4
Average
LSD at 10% Level
Std. Err. of Entry Mean
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 = 17.7% and df for EMS = 33.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
May 24, 2004.
Harvested:
September 3, 2004.
Seeding Rate:
150,000 seed/acre in 30" rows.
Soil Type:
Appling coarse sandy loam.
Soil Test:
P = Medium, K = Medium, and pH = 6.4.
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 5.0 inches.
Test conducted by P. A. Rose.