highly significantp value of <0.001
The following final regression Equation (1) for production of total minor ginsenosides ( Y 9 ) was obtained in terms of coded factors: Y = 92.8 − 2.16 X 1 + 5.82 X 2 + 2.46 X 3 − 9.79 X 1 X 2 + 3.45 X 1 X 3 − 0.88 X 2 X 3 − 26.25 X 1 2 − 46.02 X 2 2 − 17.31 X 3 2 (1) The ANOVA results ( Table 3 ) showed that the total model for production of the minor ginsenosides ( Y 1 – Y 9 ) was highly significant, with a p value of <0.001, while the lack of fit is not significant relative to the pure error, with a p value of >0.05.