Development of Novel Pesticidal Agents. We have discovered a family of naturally occurring plant proteins called the cyclotides that have potent insecticidal activity against Helicoverpa species, one of the major pests on cotton and corn in Australia and world wide. Preliminary evidence has shown that they also have activity against major pests to livestock in Australia, including sheep blowflies. To develop these proteins as potential pesticidal agents it is necessary to understand the struct ....Development of Novel Pesticidal Agents. We have discovered a family of naturally occurring plant proteins called the cyclotides that have potent insecticidal activity against Helicoverpa species, one of the major pests on cotton and corn in Australia and world wide. Preliminary evidence has shown that they also have activity against major pests to livestock in Australia, including sheep blowflies. To develop these proteins as potential pesticidal agents it is necessary to understand the structural basis for their activity. We will do this by chemically synthesising peptides with selected residues mutated to determine their effects on activity.Read moreRead less
Evaluating Research Policy in Australian Broadacre Agriculture - Accounting for Interactions between the Beef, Sheep Meat, Wool, and Grains Industries. This project studies the returns from R&D investments in Australia's broadacre agricultural industries and equity in the funding of these investments. The contribution is to explicitly recognise the interaction across cattle, sheep and cropping enterprises, while past analyses have been single industry approach. Econometric models of multi-output ....Evaluating Research Policy in Australian Broadacre Agriculture - Accounting for Interactions between the Beef, Sheep Meat, Wool, and Grains Industries. This project studies the returns from R&D investments in Australia's broadacre agricultural industries and equity in the funding of these investments. The contribution is to explicitly recognise the interaction across cattle, sheep and cropping enterprises, while past analyses have been single industry approach. Econometric models of multi-output profit function for Australian broadacre agriculture and demand systems involving these products are estimated. A multi-industry equilibrium displacement model is developed to simulate the incidence of both costs and returns of agricultural R&D, with cross-industry interaction recognised. The project is likely to contribute to the way agricultural research is administered and funded in Australia.Read moreRead less
Novel, Cost-Effective Methods for Measuring Methane Emissions from Grazing Livestock. Agriculture is second only to energy generation as a source of greenhouse gas emissions in Australia. Methane from cattle and sheep constitute 60% of these agricultural emissions. Their abatement is a win-win goal for the agricultural industry, reducing greenhouse emissions while increasing food efficiency. This project will develop a novel, cost- and-labour efficient method for on-farm measurements of the emis ....Novel, Cost-Effective Methods for Measuring Methane Emissions from Grazing Livestock. Agriculture is second only to energy generation as a source of greenhouse gas emissions in Australia. Methane from cattle and sheep constitute 60% of these agricultural emissions. Their abatement is a win-win goal for the agricultural industry, reducing greenhouse emissions while increasing food efficiency. This project will develop a novel, cost- and-labour efficient method for on-farm measurements of the emissions of methane from free-grazing cattle and sheep in their undisturbed environment. The method will be used to assess the dependence of methane emissions on factors such as diet and the efficacy of proposed methods for abatement of methane emissions, as well as providing improved data to the National Greenhouse Gas Inventory.Read moreRead less