Research Report Number 702
December 2005
SORGHUM FOR SILAGE
Tifton, Georgia:
Early-Planted Sorghum Hybrids for Silage, 2005, Nonirrigated
Company or
Brand Name
Hybrid Name
or Number
Forage Yields
Dry
Green
--- tons/acre ---
AgraTech
Southern States
AgraTech
Moss
Pennington
86S
SS1515F
3723F
4Ever Green
Summergrazer III
8.6
7.5
7.3
7.1
6.7
AgraTech
AgraTech
SS
Moss
Moss
8208F
9161F
SS-85F
4Ever Green BMR
Millennium BMR
Pennington
Penn02BMR
Average
LSD at 10% Level
Std. Err. of Entry Mean
Quality Factors 1
2-Yr. Avg
Milk Production 2
Dry Yield lbs/ton DM lbs/acre
tons/acre
Plant
Height
in
Dry
Matter
%
31.0
27.1
24.3
33.2
20.2
118
95
100
118
114
28
28
30
21
33
.
6.8
.
6.8
.
2053
2136
2215
1867
1960
17658
16021
16465
13257
13131
6.2
6.1
5.7
5.3
4.4
19.0
23.0
21.7
23.9
16.8
103
110
98
111
88
32
26
26
22
27
.
.
6.1
5.2
4.5
2487
2133
2527
2579
2901
15421
13009
14404
13667
12764
4.3
14.9
109
29
.
2670
11481
6.3 3
1.2
0.5
23.2
4.3
1.8
106
17
7
28
1
1
5.9
1.0
0.4
2321
435
170
14298
2798
1095
1. Quality factors taken from the replicated silage trial at Tifton
2. This variable is calculated using University of Wisconsin Corn Silage Evaluation System - Milk 2000 and
reported at lbs milk/ton of dry matter (DM) and lbs milk/acre.
3. CV = 15.8% and df for EMS = 30.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected
LSD (P = 0.10).
Planted:
April 22, 2005.
Harvested:
July 25, 2005.
Seeding Rate:
140,000 seed/acre in 30" rows.
Soil Type:
Tifton loamy sand.
Soil Test:
P = High, K = Medium, and pH = 5.1.
Preplant: 60 lb N, 75 lb P 2O5, 112 lb K2O, and 2000 lb Dolomitic lime/acre.
Fertilization:
Sidedress: 81 lb N/acre.
Previous Crop: Sorghum sudan.
Paratilled and rototilled; Atrazine and three cultivations used for weed control;
Management:
Lorsban used for insect control.
Test conducted by A. E. Coy, R. Bennett, R. Brooke, and R. Burton.
Research Report Number 702
December 2005
Griffin, Georgia:
Evaluation of Sorghum Hybrids for Silage, 2005
Company or
Brand Name
Hybrid Name
or Number
Forage Yields
Dry
Green
--- tons/acre ---
AgraTech
AgraTech
AgraTech
Southern States
Moss
9161F
86S
8208F
SS1515F
Millennium BMR
9.2
8.4
7.1
7.1
7.1
Moss
Pennington
SS
AgraTech
Pennington
4Ever Green
Summergrazer III
SS-85F
3723F
Penn02BMR
Moss
4Ever Green BMR
Average
LSD at 10% Level
Std. Err. of Entry Mean
Plant
Height
in
Dry
Matter
%
2-Yr. Avg
Dry Yield
tons/acre
35.0
31.2
23.8
28.2
26.7
131
131
99
92
112
26
27
30
25
27
.
.
.
6.9
6.2
6.7
6.5
6.2
6.1
5.2
42.6
21.5
24.8
24.0
22.6
122
93
101
98
110
16
30
25
25
23
7.9
.
6.7
.
.
4.7
30.2
103
16
5.9
6.7 1
0.9
0.4
28.2
3.7
1.5
108
9.3
3.9
25
3
1
6.7
N.S.2
0.4
1. CV = 10.9% and df for EMS = 30.
2. The F-test indicated no statistical differences at the alpha =.10 probability level; 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).
May 19, 2005.
Planted:
August 26, 2005.
Harvested:
150,000 seed/acre in 30" rows.
Seeding Rate:
Cecil clay loam.
Soil Type:
P = Medium, K = High, and pH = 6.0.
Soil Test:
Preplant: 28 lb N, 56 lb P 2O5, and 84 lb K 2O/acre. Sidedress: 100 lb N/acre.
Fertilization:
Previous Crop: Wheat.
Chisel plowed, disked, and rototilled; Aatrex and one cultivation used for weed
Management:
control; irrigated 1.0 inch.
Test conducted by P. A. Rose.