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Relationship of adjusted and predicted yield based on least square regression models for LND and PUL, WA, 2017 and 2018 growing seasons. Spectral measurements across different growth stages were fitted to predict grain yield. Blue lines indicate mean grain yield, whereas solid and dashed red lines correspond of the line of fit for the regression model and the significant curve at p < 0.05, respectively. RMSE = root mean square error.
