Comprehensive Analysis of the Components of Walnut Kernel (Juglans regia L.) in China

Figure 7

(a) PCA score of 45 different types of walnut kernels from the main five walnut-planting provinces in China. (b) PCA loading of the 17 amino acids in 45 different types of walnut kernels. The first three significant contributed amino acids were labeled with colors.

(a)

(b)