Modeling of radial growth curves and radial variation of basic density in Chamaecyparis obtusa planted in two progeny test sites

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 4 The AIC values of models for cumulative annual ring width and basic density

Trait	Model	Random effect			AIC
Trait	Model	b₀	b₁	b₂	Hitachi	Kiso
CRW	I-i-f	Family			65,839	38,678
	I-ii-f		Family		68,469	40,017
	I-iii-f			Family	–	–
	I-i-b	Block			65,830	38,677
	I-ii-b		Block		68,462	40,015
	I-iii-b			Block	–	–
BD	II-i-f	Family			− 17,130	− 11,091
	II-ii-f		Family		− 17,640	–
	II-iii-f			Family	–	–
	II-iv-f	Family	Family		− 18,146	− 11,640
	II-v-f		Family	Family	− 18,790	− 11,965
	II-vi-f	Family		Family	–	–
	II-i-b	Block			− 16,396	− 10,841
	II-ii-b		Block		− 16,385	− 10,842
	II-iii-b			Block	− 16,363	− 10,841
	II-iv-b	Block	Block		− 16,402	− 10,839
	II-v-b		Block	Block	–	–
	II-vi-b	Block		Block	–	− 10,837

CRW, cumulative annual ring width; BD, basic density. –, the model failed to converge or the model was not applied. Bold values indicate the minimum AIC values among developed models. Model forms refer to Table 2