
TY  - JOUR
A1  - Ash, J 
T1  - Growth Rings in <I>Agathis robusta</I> and <I>Araucaria cunninghamii</I> From Tropical Australia
JF  - Australian Journal of Botany
JO  - Aust. J. Bot.
Y1  - 1983
VL  - 31
IS  - 3
SP  - 269
EP  - 275
KW  - 
UR  - https://doi.org/10.1071/BT9830269 
N2  - Agathis robusta and Araucaria cunninghamii trees growing in a seasonal tropical climate in north Queensland produce late wood during cooler and drier periods. Vascular cambium growth rates fluctuate, and slow-growing trees may temporarily have inactive cambium around parts of the trunk so no growth ring is formed. Radiocarbon dates on old Agathis trees indicate that the frequency of ring formation is less than annual. 
ER  -

