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Applied Biological Chemistry
Fig. 1 | Applied Biological Chemistry

Fig. 1

From: Influence of genetic and environmental factors on the contents of carotenoids and phenolic acids in red pepper fruits (Capsicum annuum L.)

Fig. 1

Score plots of the principal component analysis (PCA) and orthogonal projections to latent structure discriminant analysis (OPLS-DA) obtained from compositional data of 11 red pepper varieties. Data of carotenoids and total phenolic acids were subjected to PCA by variety (a, d), and to OPLS-DA by location (b, e) and to OPLS-DA by cultivation year (c, f). PC1 principal component 1, PC2 principal component 2; OPLS 1 in (b, c, e, f), predictive component 1; OPLS 2 in (b, e), X side orthogonal component 1; OPLS 2 in (c, f), predictive component 2

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