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

Table 1

Comparison of significant differences among the three groups at different temperatures.

Dependent Variable: Regeneration days
	(I) temperature	(J) temperature	Mean Difference (I-J)	Std. Error	Sig.	95% Confidence Interval
						Lower Bound	Upper Bound
LSD	15°C	20°C	2.56	.182	.000	2.19	2.92
		25°C	2.56	.182	.000	2.19	2.92
	20°C	15°C	-2.56	.182	.000	-2.92	-2.19
		25°C	.00	.182	1.000	-.36	.36
	25°C	15°C	-2.56	.182	.000	-2.92	-2.19
		20°C	.00	.182	1.000	-.36	.36

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