Enhancing natural enemy mortality of chrysomelids in young eucalypt plantations through habitat manipulation. Eucalyptus plantations are the future of Australian forestry. In eucalypt plantations leaf-feeding beetles reduce tree growth by an average of 53%, substantially reducing profits. Sustainable management of these pests is best done by maximising the impact of native beneficial agents, eg wasps and spiders. This research will quantify the beneficial insects in plantations and increase ....Enhancing natural enemy mortality of chrysomelids in young eucalypt plantations through habitat manipulation. Eucalyptus plantations are the future of Australian forestry. In eucalypt plantations leaf-feeding beetles reduce tree growth by an average of 53%, substantially reducing profits. Sustainable management of these pests is best done by maximising the impact of native beneficial agents, eg wasps and spiders. This research will quantify the beneficial insects in plantations and increase their efficacy by manipulating the plantation environment so it provides more of the resources (food & shelter) these beneficials require. This approach is significant as it has not been previously attempted in forestry. Our management recommendations will make the plantation sector more profitable and sustainable.Read moreRead less
Accelerated breeding for a changing environment: genomic and physiological profiling of newly generated polyploid trees. Global climate change threatens the health and productivity of forests and plantations. Because tree breeding is slow, elite trees cannot be adapted rapidly to new environments. A new procedure for accelerated tree breeding has been developed by the industry partner. The procedure, termed polyploidisation, increases DNA content and produces novel traits that can improve plant ....Accelerated breeding for a changing environment: genomic and physiological profiling of newly generated polyploid trees. Global climate change threatens the health and productivity of forests and plantations. Because tree breeding is slow, elite trees cannot be adapted rapidly to new environments. A new procedure for accelerated tree breeding has been developed by the industry partner. The procedure, termed polyploidisation, increases DNA content and produces novel traits that can improve plant growth and resilience. Polyploidisation is a natural force in plant evolution and its routine application for tree breeding has much potential. Using diverse approaches, we will investigate how newly synthesised polyploid tree species perform under heat and drought stress.Read moreRead less
Potential of Corymbia torelliana hybrids for hardwood forestry and investigation of their seed dispersal by Trigona bees. Cadaghi (Corymbia torelliana) and their hybrids with spotted gums (C. variegata complex) have enormous potential for plantation forestry. These hybrids have many excellent features that make them exciting as hardwood species, such as resistence to disease, tolerance of marginal environments, good wood properties, and fast growth rates. This project will create hybrids between ....Potential of Corymbia torelliana hybrids for hardwood forestry and investigation of their seed dispersal by Trigona bees. Cadaghi (Corymbia torelliana) and their hybrids with spotted gums (C. variegata complex) have enormous potential for plantation forestry. These hybrids have many excellent features that make them exciting as hardwood species, such as resistence to disease, tolerance of marginal environments, good wood properties, and fast growth rates. This project will create hybrids between Corymbia torelliana and spotted gums to identify hybrids which are suitable for sustainable wood production on marginal agricultural lands.
An unusual feature of Cadaghi is that native Trigona bees disperse their seeds. This project will investigate this unique seed dispersal mechanism and identify features of hybrids that are not attractive to bees. This will prevent environmental problems by preventing hybrids from dispersing seeds, becoming weedy and harming the Trigona bees.
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Site factors and genotype-site interaction affecting growth of eucalypt hybrids bred for commercial agro-forestry as a salinity management tool. Preliminary results indicate that with appropriate site-genotype matching, commercial plantation forestry can be pushed well below the current limit (650-700mm/yr). Outcomes from this project will potentially facilitate doubling of Australia's forest plantations, eliminate the annual trade deficit of $2 billion in forest products; ensure the long term e ....Site factors and genotype-site interaction affecting growth of eucalypt hybrids bred for commercial agro-forestry as a salinity management tool. Preliminary results indicate that with appropriate site-genotype matching, commercial plantation forestry can be pushed well below the current limit (650-700mm/yr). Outcomes from this project will potentially facilitate doubling of Australia's forest plantations, eliminate the annual trade deficit of $2 billion in forest products; ensure the long term environmental and productive sustainability of our agricultural production systems; diversify and drought proof farm income through the introduction of perennial tree crops whose yield and harvest is independent of short term seasonal fluctuations; and re-invigorate the economy of rural Australia brought about by investment in new, inland forest and wood processing industries.Read moreRead less
Links between carbon and nitrogen cycling processes in forest soils: An innovative approach with both NMR and stable isotope techniques. Understanding the critical links between soil carbon and nitrogen cycling processes in forest ecosystems is necessary for developing effective site management to enhance forest productivity and environmental benefits. In the first application of 14N-nuclear magnetic resonance (NMR) to soil humic acid (HA), we have discovered that surprisingly nitrate-N is prese ....Links between carbon and nitrogen cycling processes in forest soils: An innovative approach with both NMR and stable isotope techniques. Understanding the critical links between soil carbon and nitrogen cycling processes in forest ecosystems is necessary for developing effective site management to enhance forest productivity and environmental benefits. In the first application of 14N-nuclear magnetic resonance (NMR) to soil humic acid (HA), we have discovered that surprisingly nitrate-N is present in soil HAs, with the HA-nitrate N extremely sensitive to forest management practices. This project represents the first attempt to integrate the use of advanced NMR and stable isotope techniques to examine both chemical and biological linkages between carbon and nitrogen cycling processes in Australian and US forest ecosystems.Read moreRead less
Soil microbial ecology and function in forest nutrient cycling: Improving the understanding and management with bio-molecular and stable isotope techniques. An improved understanding of soil microbial ecology and function is required to advance our knowledge and management of important carbon and nutrient cycling processes underpinning forest productivity and sustainability. Recent advances in bio-molecular techniques and application of stable isotope 13C and 15N methodologies have highlighted t ....Soil microbial ecology and function in forest nutrient cycling: Improving the understanding and management with bio-molecular and stable isotope techniques. An improved understanding of soil microbial ecology and function is required to advance our knowledge and management of important carbon and nutrient cycling processes underpinning forest productivity and sustainability. Recent advances in bio-molecular techniques and application of stable isotope 13C and 15N methodologies have highlighted the exciting opportunities and potential for studying soil microbial ecology and function in forest nutrient cycling. These innovative bio-molecular and stable isotope techniques will be effectively used to examine the impacts of management practices and global change on the soil carbon and nutrient cycling processes for enhancing both productivity and environmental benefits of forest ecosystems.Read moreRead less
Combating myrtle rust, a new disease threatening Australia’s unique flora. This project aims to reduce the impact of myrtle rust, an invasive plant disease. Myrtle rust is a globally significant biodiversity threat that is rapidly spreading to new regions. It affects many iconic native species as well as impacting commercial industries. The expected project outcomes are; a comprehensive understanding of the host genes involved in successful plant defence, and of the pathogen genes involved in th ....Combating myrtle rust, a new disease threatening Australia’s unique flora. This project aims to reduce the impact of myrtle rust, an invasive plant disease. Myrtle rust is a globally significant biodiversity threat that is rapidly spreading to new regions. It affects many iconic native species as well as impacting commercial industries. The expected project outcomes are; a comprehensive understanding of the host genes involved in successful plant defence, and of the pathogen genes involved in the establishment of parasitism. The project will employ new approaches that enhance the application of biotechnology to Australian biosecurity. Key expected benefits are; gene-specific tools for plant breeders and conservation land managers, and improved preparedness for the threat posed by new rust strains.Read moreRead less
Hoop pine nitrogen and water use efficiency: improving the understanding and management with advanced stable isotope, physiological and molecular techniques. This project represents the first attempt to integrate the use of innovative stable isotope, physiological and molecular techniques for improving the understanding and management of genetic and environmental factors regulating hoop pine nitrogen use efficiency (NUE) and water use efficiency (WUE). The successful conduct of the project will ....Hoop pine nitrogen and water use efficiency: improving the understanding and management with advanced stable isotope, physiological and molecular techniques. This project represents the first attempt to integrate the use of innovative stable isotope, physiological and molecular techniques for improving the understanding and management of genetic and environmental factors regulating hoop pine nitrogen use efficiency (NUE) and water use efficiency (WUE). The successful conduct of the project will result in improved stable isotope, physiological and molecular techniques for NUE and WUE studies; improved understanding and management of hoop pine NUE and WUE for enhancing plantation productivity; and successful training of a high-calibre postgraduate student and sustaining a pool of world-class researchers to meet the needs of Australian forest industry.Read moreRead less
Forestry effects on headwater ecosystem health: a multi-catchment experiment. Most catchments in southern Australia have been logged historically. Increasingly, native forest harvesting occurs in regrowth or drier areas. Although foresters have empirical data on ecological effects of harvesting in pristine or wetter catchments, little exists for drier regrowth areas, hampering effective management to minimize impacts on stream ecosystem health. This project will supply ecological data on stre ....Forestry effects on headwater ecosystem health: a multi-catchment experiment. Most catchments in southern Australia have been logged historically. Increasingly, native forest harvesting occurs in regrowth or drier areas. Although foresters have empirical data on ecological effects of harvesting in pristine or wetter catchments, little exists for drier regrowth areas, hampering effective management to minimize impacts on stream ecosystem health. This project will supply ecological data on stream ecosystems to supplement 4 years of hydrological data collected by Forests NSW from 5 experimental catchments. Results will provide a firmer scientific basis for ecologically sustainable harvesting in this forest type, with flow-on benefits to our national economy, biodiversity, and environment.Read moreRead less
Porous Silica-Based Nanocapsules for Targeted and Controlled Release of Biocides. The project will lead to significant advances in nanotechnology and agrichemical biocide applications. A highly efficient insect control technology will be developed, that will be cost-effective with the ability for targeted control and release of biocides. The encapsulation technology will reduce the total usage and costs of biocides thus benefit the environment in terms of reduced environment pollution and enhanc ....Porous Silica-Based Nanocapsules for Targeted and Controlled Release of Biocides. The project will lead to significant advances in nanotechnology and agrichemical biocide applications. A highly efficient insect control technology will be developed, that will be cost-effective with the ability for targeted control and release of biocides. The encapsulation technology will reduce the total usage and costs of biocides thus benefit the environment in terms of reduced environment pollution and enhanced ecological safety.Read moreRead less