Table 1 Effect of biogenic ZnO nano-priming and bulk ZnO on chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid contents in tomato leaves under optimal conditions.
Treatment (ppm) | Chlorophyll a (mg g-1 FW*) | Chlorophyll b (mg g-1 FW) | Total chlorophyll (mg g-1 FW) | Total carotenoid (mg g-1 FW) | ||||
|---|---|---|---|---|---|---|---|---|
B ZnO | ZnO-NPs | B ZnO | ZnO-NPs | B ZnO | ZnO-NPs | B ZnO | ZnO-NPs | |
5 | 10.601 ± 0.205 c | 10.608 ± 0.208 c | 3.650 ± 1.070 a | 3.062 ± 0.316 b | 14.250 ± 1.020 ab | 13.669 ± 0.110 b | 3.905 ± 0.321 c | 5.234 ± 0.668 ab |
10 | 14.762 ± 0.372 a | 11.920 ± 1.470 c | 2.776 ± 0.416 a | 6.050 ± 1.010 a | 17.540 ± 0.703 a | 17.976 ± 0.555 a | 5.938 ± 0.182 ab | 5.850 ± 1.020 ab |
25 | 13.491 ± 0.347 ab | 15.174 ± 0.059 ab | 2.485 ± 0.484 a | 4.340 ± 0.693 ab | 15.980 ± 0.436 ab | 19.514 ± 0.634 a | 5.347 ± 0.299 b | 5.613 ± 0.439 ab |
50 | 11.712 ± 0.942 bc | 12.867 ± 0.887 bc | 1.842 ± 0.202 a | 1.606 ± 0.803 b | 13.550 ± 1.140 b | 14.47 ± 1.510 b | 6.392 ± 0.027 a | 6.246 ± 0.369 a |
100 | 13.425 ± 0.265 ab | 16.605 ± 0.359 a | 3.407 ± 0.447 a | 3.609 ± 0.496 ab | 16.832 ± 0.593 ab | 20.214 ± 0.619 a | 5.812 ± 0.135 ab | 6.468 ± 0.460 a |
Control | 10.018 ± 0.041 c | 10.018 ± 0.041 c | 3.795 ± 0.308 a | 3.795 ± 0.308 ab | 13.813 ± 0.280 b | 13.813 ± 0.280 b | 3.585 ± 0.099 c | 3.585 ± 0.099 b |
F | 16.35 | 12.86 | 1.83 | 5.00 | 22.10 | 15.33 | 31.32 | 3.15 |
df | 18,23 | 18, 23 | 18, 23 | 18, 23 | 18, 23 | 18, 23 | 18, 23 | 18, 23 |
P | 0.000 | 0.000 | 0.158 | 0.005 | 0.000 | 0.000 | 0.000 | 0.032 |
