Table 1.
Mean square values of the analysis of variance of electrolyte leakage (EL%), Fv/Fm ratio, lipid peroxidation indicated by malondialdehyde (MDA) (nmol g−1), H2O2 content (nmole g−1), essential oil content (EOC %) and essential oil yield (EOY g plant−1).
Source of variants | df | EL | Fv/Fm | MDA | H2O2 | EOC | EOY |
---|---|---|---|---|---|---|---|
Species (S) | 1 | 230.40** | 0.03** | 9.29** | 181.62** | 0.35** | 0.08** |
Drought (D) | 2 | 6910.24** | 0.72** | 260.72** | 10699.09** | 0.52** | 0.13** |
Melatonin (M) | 4 | 177.52** | 0.02** | 1.92** | 326.68** | 0.24** | 0.06** |
S × D | 2 | 36.66** | 0.002** | 1.43** | 13.80** | 0.07** | 0.02 |
S × M | 4 | 3.39** | 0.0006** | 0.02 ns | 2.67** | 0.003* | 0.0008** |
D × M | 8 | 33.85** | 0.0008** | 0.28** | 37.63** | 0.01** | 0.003** |
S × D × M | 8 | 3.46** | 0.0002ns | 0.03ns | 1.17ns | 0.003** | 0.0008* |
Error | 60 | 0.81 | 0.00009 | 0.06 | 0.67 | 0.0008 | 0.0002 |
CV (%) | 5.20 | 1.62 | 6.31 | 2.30 | 4.21 | 4.19 |
* and **: Significant at the 5% and 1% probability levels, respectively., ns: Non- Significant, according to the LSD multiple range test at P ≤ 0.05. df, degrees of freedom.