Table 3: Regression coefficients of the predicted quadratic polynomial model for response variables (FFA%).

VariablesCoefficients ( ) % Notability
FFA ( )

Intercept linear96.65144.210.0001 ***
17.28889.810.0001 ***
4.3357.020.0001 ***
1.919.520.0150 **

Square
−15.14 130.050.0001 ***
0.370.0850.7777
0.630.330.5838

Interaction
−3.48 30.630.0006 ***
−1.40 4.020.0800
0.110.0230.8825
0.99

; . T: test value
See Table 2 for a description of the abbreviations.