Predicting Winter Wheat Grain Yield Using Fractional Green Canopy Cover (FGCC)

Figure 5

The model built from both sensor types and their subsequent yields. INSEY (In-Season Estimate of Yield) is derived from dividing sensor values (in this case) by GDD > 0, which creates a unit of growth per day, in order to estimate yield. The dotted line and coefficient of determination (r²) represents the model that is built from the dataset, and the solid line, as well as the equation, represents that same model translated up one standard deviation. This translation is done to represent reaching for the maximum potential yield for a location. While NDVI derived equation provides higher r² value, the models are similar in shape, supporting the use of FGCC as a yield predictor.

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