Table 5: Analysis of variance of yield using pectinase.

ANOVA Sum of squares Degrees of freedom Mean square Fcal Ftab P
Regression* 472.9 4 118.2 16.0 3.3 0.0185
Residue 88.4 12 7.4 - - -
Lack-of-fit 86.9 10 8.7 11.7 19.4 0.0811
Pure error 1.5 2 0.7 - - -
Total 561.3 16 - - - -

*Significant effects at 5% significance. R2 = 84.25%.