eCite Digital Repository

Type 1 and 2 resin pockets in New Zealand radiata pine: how do they differ?


Ottenschlaeger, ML and Downes, G and Bruce, J and Jones, TG, Type 1 and 2 resin pockets in New Zealand radiata pine: how do they differ?, New Zealand Journal of Forestry Science, 42 pp. 39-46. ISSN 0048-0134 (2012) [Refereed Article]

Not available

Copyright Statement

Copyright 2012 New Zealand Forest Research Institute Limited (trading as Scion)

Official URL:


Resin pockets are a significant source of wood-quality degrade in Pinus radiata D.Don (radiata pine) logs for many forests around New Zealand. Low rainfall and windy conditions coupled with stony soils and poor soil water-holding capacity have been implicated in their occurrence. Resinous defects have little impact on the structural properties of timber and consequently their occurrence may be underestimated in plantations grown for purposes other than appearance grade timber. It has been common in industry trials to describe resin pockets according to three distinct categories; Types 1, 2 and 3. This paper builds on a series of existing studies directed at understanding the physiological causes of resin pocket occurrence and suggests that current distinctions drawn between different types of resin pockets represent a developmental continuum. Specifically, it argues that a morphological continuum exists between what is generally categorised as Type 1, and Types 2 and 3 resin pockets. It is not intended that the proposed gradation replace the current classification of resin pockets. Rather it is suggested that there is a common physiological cause to better focus research directed at managing their occurrence.

Item Details

Item Type:Refereed Article
Keywords:drought, radiata pine, resin, resin pocket, wind, wood quality
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Forestry product quality assessment
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Forestry not elsewhere classified
UTAS Author:Ottenschlaeger, ML (Ms Maria Ottenschlaeger)
UTAS Author:Downes, G (Dr Geoff Downes)
ID Code:116423
Year Published:2012
Web of Science® Times Cited:3
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-05-10
Last Modified:2017-08-28

Repository Staff Only: item control page