Table 2.
Ammonia content (mg ammonia 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 | 16.92 ± 0.64 a | – |
| 200 | 68.99 ± 12.16 bc | – |
| 400 | 79.34 ± 6.75 bc | – |
| 600 | 166.35 ± 21.85 c | – |
| Glufosinate-resistant cotton (IMACD 6001LL) | ||
| 0 | 54.27 ± 7.13 a | 57.3 ± 5.69 a |
| 200 | 38.67 ± 4.73 a | 62.15 ± 7.42 a |
| 400 | 47.06 ± 6.51 a | 56.41 ± 6.04 a |
| 600 | 51.26 ± 18.14 a | 64.02 ± 10.02 a |
| Insect-resistant cotton (FM 975WS) | ||
| 0 | 44.30 ± 4.54 a | 78.48 ± 11.32 a |
| 200 | 16.13 ± 6.00 a | 54.09 ± 6.08 a |
| 400 | 44.76 ± 12.91 a | 85.14 ± 17.79 a |
| 600 | 123.01 ± 20.79 b | 134.52 ± 14.66 b |
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)