Fig. 3
From: Evaluating potential of leaf reflectance spectra to monitor plant genetic variation
Principle components analyses (PCA) across all three datasets indicate that experimental setting determines variance structure. a, b PC1-4 of PCA across all samples in the three datasets. Each blue circle is a sample measured in Field_AZ, each orange triangle is a sample measured in Field_Utah, and each green square is a sample measured in the Glasshouse. This color scheme is retained in further figures, unless stated. Shaded regions indicate 95% confidence intervals. c Contribution of reflectance calculated at each wavelength to the first 4 PCs. Blue: PC1, orange: PC2, green: PC3, grey: PC4. d, e PC1–4 of PCA across the three datasets using only UT-WT samples; f contribution of wavelengths to the first 4 PCs. The color and shading scheme of (d)–(f) is the same as in (a)–(c)