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. 2018 Jul 3;9:936. doi: 10.3389/fpls.2018.00936

Figure 3.

Figure 3

Cross-validation scatter plots for measured PNC vs. estimated PNC derived from selected models for pre-heading stages: CIRE−a (A), NDTI1 (B), MTCIg (C), BNIg (D), Model-1 (E), and Model-4 (F).