highly significantp < 0.01
As shown in Table 3 , the model was highly significant ( p < 0.01), and the coefficient of determination (R 2 ) obtained by dividing the regression sum of squares by the total sum of squares was 0.98.
As shown in Table 3 , the model was highly significant ( p < 0.01), and the coefficient of determination (R 2 ) obtained by dividing the regression sum of squares by the total sum of squares was 0.98.