Effects of Fe³⁺ on Acute Toxicity and Regeneration of Planarian (Dugesia japonica) at Different Temperatures

Table 2

Comparison of regeneration days in planarian head, trunk and tail fragments.

Dependent Variable: Regeneration days
	(I)Part	(J) Part	Mean Difference (I-J)	Std. Error	Sig.	95% Confidence Interval
						Lower Bound	Upper Bound
LSD	Head	trunk	-1.62	.182	.000	-1.98	-1.26
		Tail	-2.20	.182	.000	-2.56	-1.84
	trunk	Head	1.62	.182	.000	1.26	1.98
		Tail	-.58	.182	.002	-.94	-.22
	Tail	Head	2.20	.182	.000	1.84	2.56
		trunk	.58	.182	.002	.22	.94

Based on observed means.
The error term is Mean Square (Error) =0.748.
The mean difference is significant at the 0.05 level.