Fig. 2

Correlation circle showing the association between the different parameters under study. The data points are the average of five replications. The parameters which are on the opposite side are negatively correlated, while those which are closely placed shows a positive correlation and the one which is orthogonally placed do not correlate with each other. It is evident from the correlation circle that all of the variables are positioned far from the center, indicating the principal components’ ability to explain the variables. Thus, it is evident that the variables protein and starch, TSS and AA, are negatively correlated to each other and those that are close to one another like AA, SH, and phenol are positively correlated.