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. 2018 Apr 4;23(4):827. doi: 10.3390/molecules23040827

Figure 4.

Figure 4

Correlation matrix of 42 metabolites from three different colored flowers of R. schlippenbachii. Each square indicates the Pearson correlation coefficient of a pair of compounds. The value of correlation coefficient is represented based on the intensity of the red and blue colors. Secondary metabolites were marked by a yellow box.