Table 4.
Mean squares, coefficients of determination and variation from the analysis of variance for antioxidants and relative water content of the two cassava varieties under water stress treated with ascorbic acid
| SV | DF | CAT | AA | SOD | RWC |
|---|---|---|---|---|---|
| Rep | 2 | 4.4 × 10−6 | 1.0 × 10−6 | 9.1 × 10−6 | 1.13 |
| Stress (S) | 4 | 0.49** | 2.7 × 10−3** | 7.9 × 10−2** | 3.65** |
| Genotype (G) | 1 | 0.33** | 1.8 × 10−3** | 7.2 × 10−2** | 10.45** |
| S × G | 4 | 1.2 × 10−2** | 4.8 × 10−6** | 2.2 × 10−5NS | 1.53NS |
| Error | 46 | 8.0 × 10−5NS | 3.7 × 10−7NS | 2.6 × 10−5NS | 1.15NS |
| R2 (%) | 99.9 | 99.9 | 99.8 | 61.8 | |
| CV | 0.8 | 0.5 | 0.3 | 0.9 |
NS not significant, CAT catalase, AA ascorbic acid, SOD superoxide dismutase, RWC relative water content
**Highly significant at 0.01 level of probability