|
Table 26.
Chickasha, South Central Research Station, Grady County |
|
|
|
|
|
|
|
|
Rainfed, Sown 12 September 2005 |
|
|
|
|
|
|
|
|
Roundup Ready vs. Conventional Alfalfa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Treatment
Combination |
Treatment Number |
2006 |
|
|
|
|
|
|
|
|
Variety |
Herbicide |
5-May |
9-Sep |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
Weed-free Tons DM/Acre |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
HybriForce |
Raptor |
6 |
2.38 |
0.66 |
3.04 |
|
|
|
|
|
|
|
|
HybriForce |
None |
2 |
2.34 |
0.59 |
2.92 |
|
|
|
|
|
|
|
|
HybriForce |
Select& 2,4-DB |
12 |
2.21 |
0.61 |
2.82 |
|
|
|
|
|
|
|
|
FD4RRA |
Roundup |
3 |
2.18 |
0.63 |
2.81 |
|
|
|
|
|
|
|
|
FD4RRA |
Roundup |
14 |
2.15 |
0.62 |
2.77 |
|
|
|
|
|
|
|
|
FD4RRA |
Select& 2,4-DB |
13 |
2.13 |
0.59 |
2.73 |
|
|
|
|
|
|
|
|
HybriForce |
Poast Plus & 2,4-DB |
4 |
2.17 |
0.54 |
2.70 |
|
|
|
|
|
|
|
|
HybriForce |
Sinbar |
8 |
1.96 |
0.65 |
2.61 |
|
|
|
|
|
|
|
|
FD4RRA |
Sinbar |
9 |
2.04 |
0.54 |
2.58 |
|
|
|
|
|
|
|
|
FD4RRA |
Raptor |
7 |
1.95 |
0.46 |
2.41 |
|
|
|
|
|
|
|
|
FD4RRA |
Poast Plus & 2,4-DB |
5 |
1.85 |
0.42 |
2.26 |
|
|
|
|
|
|
|
|
FD4RRA |
None |
1 |
1.84 |
0.34 |
2.19 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Mean |
|
|
|
2.10 |
0.55 |
2.65 |
|
|
|
|
|
|
|
|
5% LSD |
|
|
|
0.28 |
0.16 |
0.33 |
|
|
|
|
|
|
|
|
CV (%) |
|
|
|
9.2 |
19.7 |
8.8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
HybriForce 600 |
|
|
2.21 |
0.61 |
2.82 |
|
|
|
|
|
|
|
|
FD4RRA |
|
|
|
2.02 |
0.51 |
2.54 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Plot Size: 5'
X 25' overall; 3.3' X 20' harvested. |
|
|
|
|
|
|
| Alleys between
ranges: 20' |
|
|
|
|
|
|
|
|
|
|
|
| Conventional
Variety: HybriForce 600 |
|
|
|
|
|
|
|
|
|
|
|
| Roundup Ready
Variety: FD4RRA lot 215-5 |
|
|
|
|
|
|
|
|
|
|
|
| Seeding Rate
12 lbs/acre |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Treatment
Combination |
Alfalfa
Variety |
Herbicide
Treatment |
Rate |
Date |
|
|
|
|
|
|
| 1 |
FD4RRA |
None |
None |
None |
|
|
|
|
|
|
| 2 |
HybriForce
600 |
|
|
|
|
|
|
| 3 |
FD4RRA |
Roundup
Weather Max |
22
fl oz/A |
First
fall after 3rd trifoliolate |
|
|
|
|
|
|
| 4 |
HybriForce
600 |
Poast
Plus & 2,4-DB |
2 pt/A +
0.5 lb ai/A |
|
|
|
|
|
|
| 5 |
FD4RRA |
|
|
|
|
|
|
| 6 |
HybriForce
600 |
Raptor |
5 fl
oz/A |
|
|
|
|
|
|
| 7 |
FD4RRA |
|
|
|
|
|
|
| 8 |
HybriForce
600 |
Sinbar |
0.5 lb/A |
First
fall after 3rd trifoliolate |
|
|
|
|
|
|
| 9 |
FD4RRA |
|
|
|
|
|
|
| 12 |
HybriForce
600 |
Select
and/or 2,4-DB |
8 fl
oz/A + 0.75 lb ai/A |
Whenever
weeds may account for 5% of the forage |
|
|
|
|
|
|
| 13 |
FD4RRA |
|
|
|
|
|
|
| 14 |
FD4RRA |
Roundup
Weather Max |
22 fl oz/A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|