Figure 3 | Scientific Reports

Figure 3

From: A statistical modeling approach based on the small-scale field trial and meteorological data for preliminary prediction of the impact of low temperature on Eucalyptus globulus trees

Figure 3

Chilling-unit model for the regression of QY levels during winter (a) Distribution of AIC of models using modified chilling accumulation units (days) by daily maximum temperatures. AIC was calculated for a total of 5758 combinations of thresholds (T) and past given periods (L), respectively, and are displayed in a heatmap (see Fig. S2 for other modified type and temperature sort combinations). Observed QYs were best explained by the chilling units given by the combination of T = 9.5 and L = 46. (b) The regression line is given by the minimum AIC parameters. The blue solid line and the colored range indicate the regression fit lines and their 95% confidence intervals, respectively. Green, orange, red, and navy dots indicate the observed values of QY (see Fig. S3 for other combination results).

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