Table 3.
Glutamate content (mg glutamate kg−1 fresh weight) in different cotton cultivar plants after glufosinate application
| Glufosinate (g ai ha−1) | First application | Second application |
|---|---|---|
| Conventional cotton (FM 993) | ||
| 0 | 2.64 ± 0.23 a | – |
| 200 | 7.11 ± 2.68 a | – |
| 400 | 18.41 ± 2.38 b | – |
| 600 | 27.01 ± 2.87 c | – |
| Glufosinate-resistant cotton (IMACD 6001LL) | ||
| 0 | 2.56 ± 0.48 a | 18.4 ± 5.00 ab |
| 200 | 2.22 ± 0.18 a | 15.14 ± 4.71 a |
| 400 | 3.81 ± 0.58 a | 31.03 ± 5.88 b |
| 600 | 3.82 ± 0.84 a | 56.65 ± 4.58 c |
| Insect-resistant cotton (FM 975WS) | ||
| 0 | 7.16 ± 2.38 a | 2.85 ± 0.55 a |
| 200 | 7.70 ± 3.70 a | 12.77 ± 4.03 ab |
| 400 | 5.24 ± 0.74 a | 18.09 ± 6.13 b |
| 600 | 6.21 ± 1.11 a | 14.53 ± 4.28 ab |
Data represent the means of 4 replications ± standard error. Means followed by the same letter in the columns do not statistically differ from each other by the t test (p > 0.05)