Table 3. The ANOVA (IIT/OIT) for response surface of integument thickness (µm) in three fertilization treatments (FT) at various times.
| Source | Sum of Squares | df | Mean Square | F Value | p-value Prob >F |
| Model | 75077/25709 | 9/9 | 8342/2857 | 274/234 | <0.0001/<0.0001 |
| A-DAP | 53514/24164 | 1/1 | 53514/24164 | 1760/1979 | <0.0001/<0.0001 |
| B-FT | 2977/19 | 2/2 | 1488/9.47 | 49/0.78 | <0.0001/0.465 |
| AB | 7535/50 | 2/2 | 3768/25 | 124/2.06 | <0.0001/0.136 |
| A2 | 3394/620 | 1/1 | 3394/620 | 112/51 | <0.0001/<0.0001 |
| A2B | 3003/15 | 2/2 | 1502/7.25 | 49/0.59 | <0.0001/0.555 |
| A3 | 4654/841 | 1/1 | 4654/841 | 153/69 | <0.0001/<0.0001 |
| Residual | 1885/757 | 62/62 | 30/12 | N/A | N/A |
p-value <0.05 represents significant differences at the 95% confidence interval based on response surface analysis. Abbreviations: DAP, days after pollination; IIT, inner integument thickness; OIT, outer integument thickness; FT, fertilization treatments.