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Figure 4


Fig. 4. Relationship between chlorophyll content (SPAD values) and pigment specific simple ratio-chlorophyll a (PSSRa), ratio analysis of reflectance spectra-chlorophyll b (RARSb), and ratio analysis of reflectance spectra-carotenoids (RARSc) across 3 yr in experiment GHIST at grainfilling stage. ** Significant at P = 0.01.