Table 6.

Estimates of the simple linear regressions (y = β₁ × x) calculated to observe the trend of the normalized difference between the SE values for the response to the event minus that of the basal state (dependent variable, y) over time (independent variable, x) from the initial condition at the beginning of the experimental period (SE of the basal state for each group on the 2nd day = 100%). A significant regression equation was found in C₁ (F (1, 6) = 16.73, p < 0.01), with an R² of 0.736. A significant regression equation was found in C₂ (F (1, 6) = 6.682, p < 0.05), with an R² of 0.527. A significant regression equation was not found in C₃. A significant regression equation was found in C₄ (F (1, 6) = 7.092, p < 0.05), with an R² of 0.542.

	Group	β1	Std. Error	t	R2
Se:Hg > 1	C1	1.3803	0.3374	4.09 **	0.736
	C2	1.2471	0.4824	2.585 *	0.527
Se:Hg < 1	C3	0.3860	0.2115	1.825	0.357
	C4	0.6008	0.2256	2.663 *	0.542

* p < 0.05; ** p < 0.01.