*2.7. Statistical Analysis*

One-way analysis of variance (ANOVA) was carried out to discern significant difference at 95% level of confidence, using the SAS software program (version 9.2) (2010). Grouping was then made between treatments using Duncan's multiple range test. Regression analyses, including dendrogram and using Ward methods with squared Euclidean distance intervals, were carried out by SPSS/18 (2010). For the regression analysis, a *p*-value of less than 5% (<0.05) was determined as the significance level. Based on the *p*-value, the critical *R* value was 0.63. Fitted-line and scatter plots were made using Minitab software (version 16.2.2) (2010).
