Table 5.
Inorganic element properties of Japanese cedar due to RHW and BHW

Classification		Inorganic elements (mg/ℓ)
		Na	Ca	Mg	K
		RHW	SW	1.72a ± 0.11	7.70b ± 0.98	0.77a ± 0.29	2.38a ± 0.91
HW	1.84a ± 0.29	5.58a ± 1.02	1.42b ± 0.50	9.57c ± 1.49
BHW	SW	2.81b ± 0.19	7.88b ± 0.80	0.64a ± 0.10	6.20bc ± 2.05
	HW	2.04a ± 0.74	6.47ab ± 2.01	1.91c ± 0.51	17.37d ± 8.69
SL		**	**	**	**

Values are presented as mean; ± standard deviation;
means that the same letters are not significantly different at a p value of 0.05 according to Duncan’s new multiple range test;
= p < 0.05;
SL = significance level; RHW = red-colored heartwood tree; BHW = black-colored heartwood tree; SW = sapwood; and HW = heartwood.