Influence of cambial age and climate on ring width and wood density in Pinus radiata families

Table 5 Correlations between current year effects on ring width, latewood, earlywood and average density and climate variables for PT1 and PT2, between 1974 and 1997

		R_A (mm)	R_GS (mm)	R_S (mm)	MT_A (°C)	MT_GS (°C)	MT_S (°C)	MaxT_S (°C)	DMI_GS
PT1	RW	0.38^*	0.00 ns	0.23 ns	0.01 ns	−0.37^*	−0.27 ns	−0.17 ns	0.38^*
	RD	−0.07 ns	0.07 ns	−0.10 ns	−0.30 ns	−0.01 ns	−0.10 ns	−0.12 ns	−0.05 ns
	LWD	0.18 ns	−0.10 ns	−0.20 ns	−0.36^*	−0.30 ns	−0.28 ns	−0.27 ns	0.21 ns
	EWD	−0.05 ns	−0.30 ns	−0.26 ns	−0.04 ns	0.08 ns	0.03 ns	0.18 ns	−0.05 ns
PT2	RW	0.41^*	0.17 ns	0.27 ns	0.29 ns	0.22 ns	0.26 ns	0.32 ns	0.38^*
	RD	−0.45^*	0.48^**	0.32 ns	−0.17 ns	−0.23 ns	−0.15 ns	−0.11 ns	−0.43^*
	LWD	0.05 ns	0.50^***	0.52^***	−0.40^*	−0.33 ns	−0.08 ns	−0.09 ns	0.09 ns
	EWD	−0.58^***	0.20 ns	0.17 ns	−0.15 ns	−0.04 ns	−0.02 ns	−0.03 ns	−0.57^***

No correlations for PT3 and PT4 were statistically significant due to lower degrees of freedom (df = 13)
RW ring width, LW latewood density, EWD earlywood density, RD ring density, ns not significant

ISSN: 1297-966X