Table 9 Effects of NPs and bulk treatments at their respective MICs and used as seed dressing with tubers on the activities of oxidative enzymes in potato plants
From: Management of potato brown rot disease using chemically synthesized CuO-NPs and MgO-NPs
Bulks & NPs | Treatment | Enzyme activity as OD/mg/g fresh weight/min | |
|---|---|---|---|
Peroxidase activity (PO) | Polyphenol oxidase activity (PPO) | ||
CuSO 4 | Healthy | 0.363e ± 0.003 | 0.145 g ± 0.002 |
Treated | 0.351e ± 0.004 | 0.129i ± 0.002 | |
MgSO 4 | Healthy | 0.194f ± 0.004 | 0.178f ± 0.003 |
Treated | 0.176 g ± 0.002 | 0.138gh ± 0.003 | |
CuO-NPs | Healthy | 0.653a ± 0.003 | 0.418c ± 0.002 |
Treated | 0.624b ± 0.002 | 0.405d ± 0.002 | |
MgO-NPs | Healthy | 0.644a ± 0.003 | 0.462a ± 0.002 |
Treated | 0.606c ± 0.004 | 0.427b ± 0.002 | |
*Rhizo- N | 0.401d ± 0.005 | 0.274e ± 0.002 | |
Positive control (infected) | 0.164 g ± 0.005 | 0.133hi ± 0.002 | |
LSD at 5% | 0.014 | 0.007 | |