Figure 3. Principal component analysis (PCA) of Citrus flower volatiles:(A) score plot for the first and second principal components; and (B) loading plot of for the first and second principal components. Volatile variables explained according to the blossom volatile categories of the studied Citrus species

From

Variation Patterns of the Volatile Compounds in Flowers of Chinese Native Citrus Species and Their Taxonomic Implications

Wanpeng Xi, Ligai Li, Dong Jiang, Bining Jiao, Zhiqin Zhou

Journal of Food and Nutrition Research. 2015, 3(4), 235-245 doi:10.12691/jfnr-3-4-2