Table 3.

Regression coefficients of predicted quadratic polynomial models for the responses FPC, TFC, TAA, FRP, and HPSA

Coefficient	FPC	TFC	TAA	FRP	HPSA
Intercept	0.86a	0.40a	0.015a	2.28a	2.78a
Linear
A	0.029c	0.029 b	−4.030E-004 c	0.26 a	0.28 a
B	0.097a	0.055 a	7.960E-004 b	0.17 a	0.32 a
C	0.052b	0.022 b	2.490E-004	0.067 c	0.14 b
Quadratic
A2	−0.41a	−0.25 a	−2.406E-003	−1.23	−1.82
B2	−3.568E-003	0.017	−2.081E-003	0.13	−0.092
C2	1.682E-003	−3.514E-003	−4.591E-005	0.050	0.049
Crossproduct
A*B	−8.375E-003	6.700E-003	1.913E-004	0.026	1.762E-003
A*C	2.875E-003	1.000E-004	7.875E-005	7.500E-004	−0.039
B*C	4.375E-003	1.000E-003	−6.062E-004 b	−2.500E-004	8.413E-003
R2 d	0.977	0.980	0.962	0.985	0.988
Adj. R2 e	0.957	0.963	0.929	0.972	0.977
CVf	7.19	9.46	4.87	6.01	8.18

Statistically significant at ^ap < 0.001, ^bp < 0.05, and ^cp < 0.10

^dCoefficient of multiple determination

^eAdjusted R²

^fCoefficient of variance.