2002
Cherokee
County Cotton Variety Test
Charles
Burmester and David Derrick, Auburn University and ACES
Planting Date: 4/26/02
Harvest Date: 10/2/02
Row Length: 1410 feet in long rows
930 feet in short rows
Plot Design: Strip trial the length of
the field with FM 989 Bt/RR used as a check variety between each variety. Eight
rows of each variety were planted and all check plots were also eight rows.
Cultural Practices: Area was planted no-till.
All varieties were sprayed with Roundup Ultra according to label directions.
Harvest: Check plot yields were
similar and no yield adjustment for field variability was needed.
Variety** |
Seed Cottonlb/A |
*Lint % |
Lintlb/A |
|
DP
555 Bt/RR |
3150 |
.465 |
1460 |
|
PM
1218 Bt/RR |
3390 |
.428 |
1450 |
|
DP
215 Bt/RR |
3190 |
.413 |
1320 |
|
DP
1199 Bt/RR |
2930 |
.427 |
1250 |
|
SG
521 R |
2910 |
.425 |
1240 |
|
FM
989 Bt/RR |
2890 |
.418 |
1210 |
|
FM
989 R |
2790 |
.430 |
1200 |
|
ST
4793 R |
2760 |
.428 |
1180 |
|
DP
451 Bt/RR |
2870 |
.392 |
1130 |
* Lint % determined on a small gin without cleaners. This percentage is usually higher than normal turn-out, but consistent between varieties.
** Yields for ST 4892 Bt/RR were not included due to a bad spot in the field.
Variety |
Cotton Quality Measurements |
|||
Micronaire |
Len/Staple |
Str. |
Uniformity |
|
|
DP 555 BR |
4.6 |
107/34 |
28.6 |
81 |
|
PM 1218 BR |
4.8 |
107/34 |
28.4 |
83 |
|
DP 215 BR |
4.4 |
105/34 |
27.1 |
83 |
|
DP 1199 BR |
4.6 |
110/35 |
30.1 |
83 |
|
SG 521 R |
4.6 |
106/34 |
27.9 |
83 |
|
FM 989 BR |
4.3 |
110/35 |
31.8 |
82 |
|
FM 989 R |
3.9 |
106/34 |
30.9 |
83 |
|
ST 4793 R |
4.6 |
106/34 |
28.9 |
84 |
|
DP 451 BR |
4.7 |
109/35 |
27.3 |
83 |
|
ST 4892 BR |
4.8 |
107/34 |
28.8 |
84 |