Scientific Reports

Table 7 Comparison of physical and mechanical properties between juvenile and mature wood.

From: Physical and mechanical properties of wood and their geographic variations in Larix sibirica trees naturally grown in Mongolia

Provenance	n	AD (g/cm³)				Sig	OD (g/cm³)				Sig	RS (%)				Sig
		JW		MW			JW		MW			JW		MW
		Mean	SD	Mean	SD		Mean	SD	Mean	SD		Mean	SD	Mean	SD
Khentii	5	0.63	0.06	0.73	0.07	0.038	0.60	0.05	0.70	0.07	0.028	0.14	0.02	0.20	0.03	0.006
Arkhangai	5	0.64	0.04	0.71	0.06	0.057	0.61	0.04	0.68	0.06	0.047	0.15	0.01	0.16	0.02	0.240
Zavkhan	5	0.61	0.06	0.65	0.04	0.269	0.59	0.07	0.63	0.05	0.291	0.16	0.03	0.18	0.02	0.387
Khuvsgul	5	0.61	0.04	0.62	0.02	0.707	0.58	0.04	0.59	0.02	0.745	0.15	0.01	0.20	0.02	0.004
Selenge	5	0.63	0.05	0.65	0.02	0.356	0.60	0.05	0.63	0.02	0.230	0.18	0.00	0.21	0.02	0.021
Total/mean	25	0.62	0.05	0.67	0.06	0.002	0.59	0.05	0.64	0.06	0.002	0.16	0.02	0.19	0.03	0.000
F-value		0.247		4.424			0.269		4.931			2.885		3.052
p-value		0.908		0.010			0.894		0.006			0.049		0.041

Provenance	n	TS (%)				Sig	TL (mm)				Sig	MOE (GPa)				Sig
		JW		MW			JW		MW			JW		MW
		Mean	SD	Mean	SD		Mean	SD	Mean	SD		Mean	SD	Mean	SD
Khentii	5 (4)	0.32	0.04	0.35	0.04	0.286	1.85	0.20	3.32	0.35	0.000	6.07	1.44	11.62	0.86	0.001
Arkhangai	5	0.31	0.02	0.32	0.06	0.445	2.01	0.07	2.92	0.15	0.000	6.61	0.32	8.32	0.84	0.003
Zavkhan	5	0.25	0.02	0.31	0.02	0.002	1.75	0.10	2.87	0.06	0.000	6.35	1.05	8.92	1.50	0.014
Khuvsgul	5	0.34	0.04	0.38	0.01	0.036	1.81	0.08	2.55	0.10	0.000	7.30	0.95	9.16	1.32	0.034
Selenge	5	0.33	0.03	0.38	0.03	0.037	2.03	0.10	3.07	0.24	0.000	8.41	0.63	10.83	1.03	0.002
Total/mean	25 (24)	0.31	0.04	0.35	0.04	0.001	1.89	0.16	2.94	0.32	0.000	6.98	1.20	9.69	1.62	0.000
F-value		6.913		3.241			5.177		9.397			4.872		6.594
p-value		0.001		0.033			0.005		0.000			0.007		0.002

Provenance	n	MOR (MPa)				Sig	CS (MPa)				Sig	SS (MPa)				Sig
		JW		MW			JW		MW			JW		MW
		Mean	SD	Mean	SD		Mean	SD	Mean	SD		Mean	SD	Mean	SD
Khentii	5 (4)	79.1	12.7	127.5	13.6	0.002	40.8	5.5	61.9	13.5	0.012	12.4	1.1	12.2	1.0	0.772
Arkhangai	5	75.2	3.1	92.2	7.6	0.002	45.0	2.0	52.4	6.1	0.034	12.9	0.7	13.7	1.7	0.400
Zavkhan	5	72.7	17.6	106.1	17.7	0.017	43.1	4.2	52.6	5.9	0.019	10.4	1.6	11.7	1.4	0.201
Khuvsgul	5	87.2	9.9	106.1	14.5	0.043	45.1	3.1	48.5	5.9	0.276	10.8	1.0	9.9	0.8	0.127
Selenge	5	89.5	9.2	115.4	10.2	0.003	49.0	4.0	53.0	1.7	0.074	11.0	1.0	10.7	2.1	0.780
Total/mean	25 (24)	80.8	12.5	108.7	16.6	0.000	44.6	4.5	53.7	8.3	0.000	11.5	1.4	11.6	1.9	0.809
F-value		2.048		4.414			2.931		2.078			4.692		4.925
p-value		0.128		0.011			0.047		0.122			0.008		0.006

Abbreviations refer to Tables 2, 3, and 4. Sig p-values obtained with a t-test between juvenile and mature wood in a provenance or in all sample trees. F-values and p-values were obtained with a one-way ANOVA among provenances. There were four sample trees in the static bending test in Khentii due to a failure to obtain data during the testing.

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