| The Georgia Agricultural Experiment Stations College of Agricultural and Environmental Sciences The University of Georgia |
Research Report Number 670 January, 2001 |
| Griffin, 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 | |||||||||
| - | |||||||||
| Coffey | SG-2000 | 3373 | 2629 | 5900 | 11901 | . | 50 | ||
| Southern States | FFR211 | 3766 | 2283 | 5442 | 11492 | 10938 | 47 | ||
| NK | Sordan 79 | 3894 | 2513 | 5002 | 11409 | . | 42 | ||
| Southland | Honey Pasture | 3338 | 2245 | 4511 | 10094 | . | 43 | ||
| Coffey | Sugar Graze Ultra | 3358 | 2437 | 3964 | 9759 | . | 64 | ||
| - | |||||||||
| Coffey | SG-3000 | 3415 | 2552 | 3766 | 9734 | . | 56 | ||
| Pennington | Summergrazer III | 3312 | 2366 | 3805 | 9482 | 10128 | 41 | ||
| Southern States | SS-220 | 3347 | 2517 | 3523 | 9386 | . | 49 | ||
| Southern States | FFR120 | 2906 | 2659 | 3158 | 8723 | 7842 | 42 | ||
| CSC | 2816Gbmr | 3572 | 1992 | 2898 | 8462 | . | 45 | ||
| - | |||||||||
| Coffey | Maxigain | 2541 | 1490 | 4284 | 8315 | 8843 | 65 | ||
| - | |||||||||
| Average | 3347 | 2335 | 4205 | 98872 | 9438 | 49 | |||
| LSD at 10% Level | 617 | N.S.3 | 789 | 1470 | N.S. | 7 | |||
| Std. Err. of Entry Mean | 257 | 348 | 329 | 617 | 330 | 3 | |||
| - | |||||||||
| Millet | |||||||||
| - | |||||||||
| Ga CPES | Tif Exp 4 | 4242 | 2897 | 7890 | 15030 | 13694 | 71 | ||
| USDA-Tif | DMP3SR | 4248 | 3039 | 5461 | 12747 | . | 73 | ||
| USDA-Tif | DMP4SR | 4306 | 2681 | 5096 | 12083 | . | 69 | ||
| CSC | Elite III | 4304 | 3075 | 4681 | 12060 | . | 63 | ||
| Ga CPES | Tif Exp #11 | 4683 | 2792 | 4460 | 11935 | . | 63 | ||
| - | |||||||||
| Ga CPES | Tifleaf 3 | 3766 | 3071 | 4730 | 11567 | 11813 | 79 | ||
| Southern States | SS-635 | 3378 | 2143 | 5819 | 11341 | . | 75 | ||
| Pennington | Pennleaf | 3944 | 3049 | 4042 | 11035 | 9667 | 78 | ||
| Southern States | SS-605 | 4037 | 2341 | 4420 | 10798 | . | 73 | ||
| Southern States | SS-501 | 4277 | 1768 | 3635 | 9680 | . | 56 | ||
| - | |||||||||
| Southland | Graze King | 4163 | 1599 | 2723 | 8484 | . | 55 | ||
| - | |||||||||
| Average | 4123 | 2587 | 4814 | 115234 | 11725 | 68 | |||
| LSD at 10% Level | N.S. | 759 | 1064 | 1881 | N.S. | 7 | |||
| Std. Err. of Entry Mean | 329 | 316 | 443 | 784 | 588 | 3 | |||
| 1. Percent leaf at first clipping. | |||||||||
| 2. CV = 12.4% and df for EMS = 30. | |||||||||
| 3. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore, a LSD value was not calculated. | |||||||||
| 4. CV = 13.6% 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: | May 18, 2000 | ||||||||
| Seeding Rate: | Sorghum x Sudangrass: 105,000 seed/acre in 30" rows. | ||||||||
| Millet: 4 lb seed/acre in 30" rows. | |||||||||
| Soil Type: | Appling coarse sandy loam. | ||||||||
| Soil Test: | P = High, K = Medium, and pH = 6.4 | ||||||||
| Fertilization: | Preplant: 28lb N, 56 lb P2O5, and 84 lb K2O/acre. | ||||||||
| Sidedress: 100 lb N/acre, plus 50 lb N/acre after 1st and 2nd harvests. | |||||||||
| Previous Crop: | Soybean. | ||||||||
| Management: | Moldboard plowed and rototilled; cultivated once for wee control. | ||||||||
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| Test conducted by P.A. Rose. | |||||||||
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