Table 2 Phytotoxic activities of 1 and 3 on radicle and plumule growth of rice and lettuce seeds.
Compound | Concentration (µg/mL) | Inhibition ratio of radicle growth (%)a | Inhibition ratio of plumule growth (%)a | ||||
|---|---|---|---|---|---|---|---|
O. sativa var. Lijiang | O. sativa var. Zhonghua 11 | L. sativa | O. sativa var. Lijiang | O. sativa var. Zhonghua 11 | L. sativa | ||
1 | 50 | 22.28 ± 1.03 h | 7.62 ± 2.56 h | 21.57 ± 2.12 h | 9.28 ± 3.37 f | 5.45 ± 1.16 e | 6.94 ± 2.02 f |
100 | 30.58 ± 1.80 g | 33.89 ± 1.91 g | 33.97 ± 2.57 f | 10.95 ± 5.73 f | 5.45 ± 2.57 e | 13.65 ± 0.57 e | |
200 | 35.81 ± 0.66 f | 43.81 ± 5.19 f | 41.91 ± 3.35 e | 14.40 ± 0.85 ef | 10.41 ± 1.35 e | 19.69 ± 2.01 d | |
400 | 52.20 ± 4.83 d | 53.57 ± 1.68 e | 100.00 ± 0.00 a | 14.43 ± 1.54 ef | 11.59 ± 0.71 e | 100.00 ± 0.00 a | |
3 | 50 | 21.88 ± 0.76 h | 51.43 ± 1.35 e | 11.47 ± 2.24 j | 19.56 ± 5.72 de | 21.82 ± 5.14 d | 4.88 ± 0.12 f |
100 | 27.26 ± 2.29 g | 55.71 ± 2.02 e | 15.82 ± 2.96 i | 22.32 ± 0.14 de | 34.09 ± 3.21 c | 14.44 ± 2.29 e | |
200 | 46.12 ± 1.52 e | 62.70 ± 1.12 d | 27.26 ± 2.00 g | 23.37 ± 6.23 d | 35.00 ± 4.50 c | 20.53 ± 2.70 d | |
400 | 49.35 ± 1.52 de | 75.24 ± 4.04 c | 100.00 ± 0.00 a | 24.40 ± 2.81 d | 35.91 ± 5.79 c | 100.00 ± 0.00 a | |
Glyphosate (positive control) | 50 | 88.47 ± 1.11 c | 89.19 ± 0.13 b | 75.92 ± 2.80 d | 47.15 ± 3.33 c | 57.14 ± 3.67 b | 18.51 ± 0.77 d |
100 | 93.45 ± 0.32 b | 89.50 ± 0.98 b | 77.41 ± 3.59 cd | 59.29 ± 0.33 b | 59.09 ± 2.57 b | 27.63 ± 0.95 c | |
200 | 97.03 ± 3.03 ab | 95.43 ± 1.14 a | 80.23 ± 1.77 bc | 60.73 ± 1.33 a | 63.64 ± 1.29 ab | 28.80 ± 2.43 c | |
400 | 98.64 ± 0.36 a | 98.07 ± 0.17 a | 82.97 ± 1.53 b | 70.73 ± 1.33 a | 68.18 ± 2.57 a | 56.81 ± 3.65 b | |
