SWP technical reports by date
Please note: Some of these reports are restricted access.
- Evaluation of the Ernslaw One Douglas-fir progeny tests
SWP-T049 - Access: unrestricted.
This project evaluates a Douglas-fir open-pollinated progeny trial established on two New Zealand sites (Gowan Hill and Tramway), using seedlots from three Oregon (US) seed zones. The material was measured…
- Eucalyptus variegated beetle creates concern for eucalypt growers
- Access: unrestricted.
Annoying Australians are over here and eating ‘our’ eucalypt trees. Seven different tortoise beetles, named because their round bodies resemble a tortoise, have arrived in New Zealand and have been…
- Heartwood in Eucalyptus bosistoana (2010 plantings)
SWP-T046 - Access: unrestricted.
The measurement of natural durability is resource intensive (Harju and Venäläinen, 2006; Li and Altaner, 2016b). High resource demands prevent this trait from being included in breeding programmes. However, the…
- Thermal Modification of Douglas fir for Improved Durability
SWP-T047 - Access: unrestricted.
Douglas fir has been thermally modified at two temperatures; 220°C and 230°C (each for 2 hours). These modifications are expected to improve the durability of the sapwood, while maintaining the…
- Eucalyptus fastigata Veneer Stiffness
SWP-T048 - Access: unrestricted.
UPT (ultrasonic propagation times) on its own is measuring both changes in density and changes in MoE, thus without an independent density measurement it is not possible to reliably determine…
- Durable eucalypt forests – a multi-regional opportunity for investment in New Zealand drylands
SWP-T044 - Access: unrestricted.
We believe our vision for the establishment of a durable eucalypt plantation estate is a unique opportunity to add value to New Zealand’s current forest industry. With our elite breeding…
- Natural durability: Correlation between extractive content and fungal assay
SWP-T045 - Access: unrestricted.
The main objective of this work was to validate if extractive content (EC) predicted by NIR spectroscopy correlated with mass-loss durability measurements. 7 year-old Eucalyptus bosistoana heartwood samples with known EC…
- Programme description
SWP-T043 - Access: unrestricted.
The Specialty Wood Products Research Partnership (SWP) is a partnership between Government and industry which aims to develop a high-value specialty wood products industry based on alternatives to radiata pine,…
- LVL Trial: Pre-Harvest Stand Assessment
SWP-T042 - Access: unrestricted.
Two trials located in Marlborough have been assessed as a potential source of peeler logs to carry out a peeler study. The trials are: E. bosistoana trial planted in 2003…
- Durable eucalypt forests: A multi-regional opportunity for investment in NZ drylands
SWP-T041 - Access: unrestricted.
This consultation paper is the first step in a process to develop the New Zealand Dryland Forests Initiative (NZDFI) regional strategic plan, focusing on the establishment of durable eucalypt forests…
- Prediction of Extractive Content of Eucalyptus globoidea Heartwood Using Near Infrared Spectroscopy
SWP-T040 - Access: unrestricted.
A dissertation submitted in partial fulfilment of the requirements for the Degree of Bachelor of Forestry Science BForSc (Hons) Abstract Natural durability of wood is highly sought for a number of wood…
- Performance of naturally durable eucalypt posts in Marlborough vineyards
SWP-T039 - Access: unrestricted.
The area of vineyards in New Zealand is up from that reported in 2015, which was 35,463 ha. Posts in a vineyard average 500-600 per hectare so there are approximately…
- Scion’s core funded experiments on thermal modification of Eucalyptus nitens.
SWP-T021 - Access: unrestricted.
The objective of this work was to replicate successful lab scale thermal modifications of Eucalyptus nitens at a larger scale. Lab scale thermal modification has been shown to improve dimensional stability and…
- Quantifying compounds in heartwood extractives of durable eucalypts
SWP-T037 - Access: unrestricted.
It is known that the relative amounts of heartwood compounds differ between trees of the same species (Fries et al., 2000; Haupt et al., 2003; Partanen et al., 2011). This…
- Development of the Douglas-fir Productivity Spatial Surface using the Process-based model 3-PG
SWP-T038 - Access: unrestricted.
The objective of this report was to provide a New Zealand-wide productivity surface for Douglas-fir. This output addresses limitations of an earlier study of Douglas-fir spatial productivity that was based…