Table 8 The interactive effects of lettuce variety, light quality and three replacement methods of nutrient solution on catalase enzyme activity and superoxide dismutase enzyme activity in lettuce plants.
Variety | Light | Catalase enzyme activity (unit enzyme activity mg−1 protein) | Superoxide dismutase enzyme activity (unit enzyme activity mg−1 protein) | ||||
|---|---|---|---|---|---|---|---|
Complete replacement | Based on EC | Based on plant needs | Complete replacement | Based on EC | Based on plant needs | ||
Lollo Rossa | White | 35.2cde | 34.9cde | 31.6gh | 269e | 258ef | 215ij |
Blue | 32.3fgh | 20.4k-n | 29.10i | 275ef | 206jk | 199kl | |
Red/Blue | 38.8b | 42.2a | 21.8kl | 309b | 323a | 191l | |
Red | 24.2j | 38.01b | 18.2n | 239gh | 247fg | 159n | |
Lollo Bionda | White | 38.7b | 30.5hi | 19.13mn | 296c | 216ij | 167mn |
Blue | 35.5cd | 22.2k | 34.8cde | 283d | 237gh | 219ij | |
Red/Blue | 33.9def | 36.9bc | 32.0fgh | 270e | 282d | 226hi | |
Red | 33.2efg | 20lmn | 21.2klm | 226hi | 209jk | 175m | |
