Table 2 The mean comparison effects of TiO2 NPs concentrations and different harvesting times at 23 ºC and 10 ºC on some of the traits studied in this research.
Treatments | Catalase (nmol of H2O2 decomposed min-1 mg-1 protein) | Superoxide dismutase (nmol/min-1 mg-1 protein) | Ascorbate peroxidase (nmol oxidized ascorbate min-1 mg-1 protein) | Guaiacol peroxidase (nmol guaiacol min-1 mg-1 protein) | Soluble protein (mg ml-1 protein) | ||
|---|---|---|---|---|---|---|---|
Titanium Dioxide | Harvesting times | ||||||
23 °C | 0 | 6 h 24 h 48 h | 17.49 ± 1.15 lm 17.49 ± 1.15 lm 17.49 ± 1.15 lm | 14.46 ± 0.98 k 14.46 ± 0.98 k 14.46 ± 0.98 k | 9.93 ± 0.06 k 9.93 ± 0.06 k 9.93 ± 0.06 k | 15.33 ± 0.58 kl 15.33 ± 0.58 kl 15.33 ± 0.58 kl | 64.33 ± 4.04 ij 64.33 ± 4.04 ij 64.33 ± 4.04 ij |
2 ppm | 6 h 24 h 48 h | 19.00 ± 1.00 kl 21.67 ± 0.58 hi 25.33 ± 0.58 ef | 15.33 ± 0.58 jk 17.00 ± 1.00 hij 20.00 ± 1.00 fg | 10.33 ± 0.58 jk 11.33 ± 0.58 ij 12.33 ± 0.58 hi | 15.67 ± 0.58 k 16.33 ± 0.58 ijk 17.67 ± 0.58 hi | 67.33 ± 0.58 i 72.67 ± 2.31 h 82.33 ± 2.08 ef | |
5 ppm | 6 h 24 h 48 h | 23.33 ± 1.15 gh 29.00 ± 1.00 d 36.00 ± 1.00 c | 18.67 ± 1.15 gh 25.00 ± 1.00 e 31.00 ± 1.00 c | 12.67 ± 0.58 gh 17.67 ± 1.15 f. 21.33 ± 0.58 e | 17.67 ± 1.15 hi 22.00 ± 1.00 f. 25.33 ± 0.58 e | 78.33 ± 0.58 fg 85.33 ± 2.52 e 93.33 ± 2.89 d | |
10 ppm | 6 h 24 h 48 h | 21.00 ± 1.00 ij 14.33 ± 1.15 n 10.00 ± 1.00 p | 16.00 ± 1.00 jk 11.67 ± 1.15 l m 8.67 ± 0.58 n | 11.33 ± 1.15 ij 7.33 ± 0.58 l 5.20 ± 0.72 m | 16.00 ± 1.00 jk 13.67 ± 0.58 m 11.33 ± 1.53 n | 68.33 ± 2.08 i 59.67 ± 0.58 k 48.33 ± 1.53 l | |
10 °C | 0 | 6 h 24 h 48 h | 19.33 ± 1.15 jk 25.67 ± 1.53 e 34.67 ± 1.53 c | 16.67 ± 1.15 ij 21.00 ± 1.00 f. 31.00 ± 1.00 c | 12.00 ± 1.00 hi 18.00 ± 1.00 f. 25.67 ± 1.53 d | 17.33 ± 1.15 ij 23.00 ± 1.00 f. 31.00 ± 1.00 c | 68.33 ± 2.89 i 81.00 ± 1.73 f. 95.67 ± 2.08 d |
2 ppm | 6 h 24 h 48 h | 23.67 ± 0.58 fg 29.33 ± 1.15 d 38.33 ± 1.53 b | 20.00 ± 1.00 fg 24.13 ± 1.03 e 29.00 ± 1.00 d | 16.72 ± 1.11 f. 22.00 ± 1.00 e 29.00 ± 1.00 c | 20.00 ± 1.00 g 28.33 ± 0.58 d 36.00 ± 1.00 b | 75.33 ± 0.58 gh 94.33 ± 4.04 d 103.67 ± 3.21 c | |
5 ppm | 6 h 24 h 48 h | 28.33 ± 1.53 d 38.67 ± 1.15 b 49.00 ± 1.00 a | 27.67 ± 0.58 d 33.00 ± 1.00 b 43.00 ± 1.00 a | 22.33 ± 0.58 e 31.67 ± 0.58 b 41.00 ± 1.00 a | 25.33 ± 0.58 e 36.00 ± 1.00 b 43.00 ± 1.00 a | 94.33 ± 3.06 d 108.33 ± 2.89 b 118.33 ± 2.89 a | |
10 ppm | 6 h 24 h 48 h | 21.67 ± 0.58 hi 16.00 ± 1.00 mn 12.00 ± 1.00 o | 18.00 ± 1.00 hi 12.67 ± 2.08 l 10.00 ± 1.00 mn | 13.67 ± 0.58 g 9.67 ± 0.58 k 7.33 ± 0.58 l | 19.00 ± 1.00 gh 14.00 ± 1.00 lm 10.00 ± 1.00 n | 75.33 ± 3.06 gh 62.33 ± 1.15 jk 50.00 ± 2.00 l | |
