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

Research Report Number 670 January, 2001

SUMMER ANNUAL FORAGES

Tifton, Georgia: Evaluation of Summer Annual Forages, 2000 and Two-Year Average Yields, 1999-2000

Company or	Hybrid Name		Clipping Dates					Season	2-Year
Brand Name	or Number		07-10-00	09-08-00	10-16-00			Total	Average	Leaf1
			------------ dry matter yield - pounds per acre ------------							%
Sorhum x Sudangrass
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Southland	Sweeter-N-Honey		11304	12264	1523			25091	19439	21
Southern States	FFR211		10397	11459	1813			23669	20268	17
NK	X999		10895	10903	1573			23371	18936	20
Southland	Honey Pasture		10535	10903	1810			23248	19193	20
Coffey	SG-2000		9527	11058	2300			22886	.	25
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Coffey	SG-3000		9935	10586	1766			22287	.	31
Pennington	Summergrazer III		9563	10662	1247			21472	18682	21
NK	Sordan 79		9246	10473	1705			21424	19623	19
CSC	2816Gbmr		9274	9662	728			19664	.	22
CSC	7616Gbmr		9037	9217	877			19132	.	19
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Southern States	SS-220		8898	8981	756			18636	.	17
Coffey	Sugar Graze Ultra		8486	8189	1314			17989	.	38
Coffey	Maxigain		7093	9264	1409			17766	15530	53
Southern States	FFR120		7414	7592	870			15876	14365	17
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Average			9401	10087	1407			208942	18255	24
LSD at 10% Level			1342	1175	406			1863	N.S.3	6
Std. Err. of Entry Mean			1126	492	170			782	682	2
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Millet			06-06-00	07-11-00	08-04-00	09-08-00
CSC	Elite III		2910	4475	4123	2221		13728	12630	34
Southern States	SS-605		2842	4283	3852	1797		12773	.	40
USDA-Tif	DMP3SR		2828	4041	4009	1869		12747	.	39
Southern States	SS-501		3386	3555	4043	1732		12715	.	39
Ga CPES	Tif Exp 4		3292	2959	4141	1938		12331	11837	37
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USDA-Tif	DMP4SR		2776	3465	4156	1666		12063	.	31
Ga CPES	Tifleaf 3		2398	4003	3894	1717		12011	11453	56
Southern States	SS-635		2475	3949	3740	1840		12004	.	47
Pennington	Pennleaf		2473	3730	3838	1711		11753	10834	41
Ga CPES	Tif Exp #11		2322	3443	4136	1474		11376	.	55
Southland	Graze King		3001	3699	3322	991		11013	.	37
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Average			2791	3782	3932	1723		122294	11688	42
LSD at 10% Level			N.S.	664	364	362		N.S.	1114	12
Std. Err. of Entry Mean			284	277	152	151		635	454	3
1. Percent leaf at first clipping.
2. CV = 7.5% and df for EMS = 39.
3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore, a LSD value was not calculated.
4. CV = 10.4% 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 19, 2000
Seeding Rate:	Sorghum x Sudangrass: 100,000 seed/acre in 30" rows.
	Millet: 4 lb seed/acre in 30" rows.
Soil Type:	Tifton loamy sand.
Soil Test:	Sorghum x Sudangrass: P = High, K = Medium, and pH = 6.5
	Millet: P = High, K = Medium, and pH = 6.3.
Fertilization:	Preplant: 54 lb N, 40 lb P2O5, and 60 lb K2O/acre.
	Sidedress: Sorghum x Sudangrass - 56 lb N/acre, plus 40 lb N/acre after 1st and 2nd harvests. Millet: 56 lb N/acre, plus 40 lb N/acre after 1st, 2nd and 3rd harvests.
Previous Crop:	Soybean.
Management:	Subsoiled and bedded; rototilled; one cultivation used for weed control; Diazinon used for insect control; Nemacur used for nematode control.
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Test conducted by A.E. Coy and M.D. Pippin.
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