Coal-ash as a resource for sustainable soil-management in plant production systems. Acidification and salinisation are major causes of land degradation in Australia, costing $1-2 billion to combat. Farmers used 1.9M t of lime and 1.0M t of gypsum to manage their soils in 2000. Power stations annually produce 12M t of coal-ash that have functional characteristics of lime and gypsum and can potentially ameliorate degraded land. Presently only 43% of the ash is used and almost entirely for constr ....Coal-ash as a resource for sustainable soil-management in plant production systems. Acidification and salinisation are major causes of land degradation in Australia, costing $1-2 billion to combat. Farmers used 1.9M t of lime and 1.0M t of gypsum to manage their soils in 2000. Power stations annually produce 12M t of coal-ash that have functional characteristics of lime and gypsum and can potentially ameliorate degraded land. Presently only 43% of the ash is used and almost entirely for construction with the rest going into landfills. This project will determine the sustainable use of coal-ash to improve structure and nutritive properties of the soil and to raise crop yield across several sites in Australia.Read moreRead less
The genetic and molecular organisation of the self incompatibility gene region in the grasses. Self-incompatibility (SI) is a cell-cell recognition process used by plants to prevent self-pollination and force outcrossing. It is widespread, occurring in a third of plant families. Although studies of SI go back to the 1800s, the origin of SI remains a mystery. Recent advances in the molecular characterisation of SI loci in some species has re-ignited debate on its origins but has provided few answ ....The genetic and molecular organisation of the self incompatibility gene region in the grasses. Self-incompatibility (SI) is a cell-cell recognition process used by plants to prevent self-pollination and force outcrossing. It is widespread, occurring in a third of plant families. Although studies of SI go back to the 1800s, the origin of SI remains a mystery. Recent advances in the molecular characterisation of SI loci in some species has re-ignited debate on its origins but has provided few answers. This project uses the grasses to explore the origins of SI. As a model system, the grasses offer detailed genetic and molecular data and aspects of floral architecture associated with SI can be investigatedRead moreRead less
Synchronising phosphorus fertilisation with plant phosphorus demand: a tactic to reduce phosphorus transfer from land to water. Phosphorus loss from intensive pasture systems is a major issue internationally due to the pollution and nutrient enrichment of water ways. This study will examine how a strategy of synchronising phosphorus (P) fertiliser to periods of high P demand in ryegrass (Lolium perenne) may be used to improve the efficiency of P uptake and thereby reduce P losses in surface run ....Synchronising phosphorus fertilisation with plant phosphorus demand: a tactic to reduce phosphorus transfer from land to water. Phosphorus loss from intensive pasture systems is a major issue internationally due to the pollution and nutrient enrichment of water ways. This study will examine how a strategy of synchronising phosphorus (P) fertiliser to periods of high P demand in ryegrass (Lolium perenne) may be used to improve the efficiency of P uptake and thereby reduce P losses in surface runoff. Simple models will be used to identify the key risk factors associated with surface P loss in order to improve the sustainability of P fertiliser use in pasture systems.Read moreRead less
A novel role for phytochrome in dormancy release inhibition. Seed dormancy contributes to the persistence of weeds in agriculture by enabling seeds to remain viable in the soil for many years, and is a major reason why annual ryegrass (Lolium rigidum) has become the most economically damaging weed in Australian agriculture. Recently we discovered a new way to control dormancy release and germination in these seeds. This project to identify the changes occurring within the seeds during dormancy r ....A novel role for phytochrome in dormancy release inhibition. Seed dormancy contributes to the persistence of weeds in agriculture by enabling seeds to remain viable in the soil for many years, and is a major reason why annual ryegrass (Lolium rigidum) has become the most economically damaging weed in Australian agriculture. Recently we discovered a new way to control dormancy release and germination in these seeds. This project to identify the changes occurring within the seeds during dormancy release will underpin our efforts to manipulate emergence timing in order to improve the efficacy of current weed control practices and contribute to sustainable farming systems.Read moreRead less
Accelerated Domestication of Australian Grass Species Using Molecular Tools. The development of new food crops from the Australian flora will provide opportunities for new sustainable agricultural and food industries in Australia. The project targets the accelerated domestication of native species with lower tillage and fertiliser requirements, better water use efficiencies and increased salt, shade, frost and/or drought tolerances than the current introduced cereal and fodder crops. This will ....Accelerated Domestication of Australian Grass Species Using Molecular Tools. The development of new food crops from the Australian flora will provide opportunities for new sustainable agricultural and food industries in Australia. The project targets the accelerated domestication of native species with lower tillage and fertiliser requirements, better water use efficiencies and increased salt, shade, frost and/or drought tolerances than the current introduced cereal and fodder crops. This will directly benefit regional Australia. The technologies developed in the project will have wide application to accelerated domestication of other Australian plants (for agriculture and food production in Australia and internationally) and to plants found in other parts of the world.Read moreRead less
Genetic regulation of photomorphogenesis in legume crops to meet changing agronomic needs. Legumes are widely grown as forage and grain crops and make a substantial contribution to the Australian economy. Light is an important determinant of plant architecture and productivity and we need to know more about how development is regulated by light in this important plant group. The natural light environment faced by plants is complex and varies with crop density, season and time of day. Understandi ....Genetic regulation of photomorphogenesis in legume crops to meet changing agronomic needs. Legumes are widely grown as forage and grain crops and make a substantial contribution to the Australian economy. Light is an important determinant of plant architecture and productivity and we need to know more about how development is regulated by light in this important plant group. The natural light environment faced by plants is complex and varies with crop density, season and time of day. Understanding the interaction of photoreceptors and plant hormones in the control of growth is vital for manipulating crops to meet changing agronomic requirements. Training of students in state-of-the art techniques and the generation of new germplasm for use by other researchers and plant breeders will be other significant outcomes of the project.Read moreRead less
Genetic control of flowering and photoperiodism in pea. The timing of flowering in many plant species is strongly influenced by photoperiod. The mechanisms by which photoperiod controls flowering will be investigated using the garden pea as a model system. New pea mutants impairing photoperiod responses will be identified and characterized, and photoperiod response genes from Arabidopsis will be mapped and used for expression studies in pea. This work will provide important new information about ....Genetic control of flowering and photoperiodism in pea. The timing of flowering in many plant species is strongly influenced by photoperiod. The mechanisms by which photoperiod controls flowering will be investigated using the garden pea as a model system. New pea mutants impairing photoperiod responses will be identified and characterized, and photoperiod response genes from Arabidopsis will be mapped and used for expression studies in pea. This work will provide important new information about the physiological roles of the Arabidopsis genes and the molecular identity of the pea genes. It will add to our knowledge of how flowering is regulated, and this will have important agronomic applications.Read moreRead less
Comparative genetics of flowering and photoperiod responsiveness in legumes. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking ....Comparative genetics of flowering and photoperiod responsiveness in legumes. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking to modify flowering responses to suit particular production strategies, and will help to maintain the strong position of Australia as a world leader in applied aspects of plant/environment interactions. It will also strengthen the international reputation of Australia for high-quality basic research in plant development.Read moreRead less
Mobile signals and the environmental control of flowering - a comparative genetic analysis. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticultu ....Mobile signals and the environmental control of flowering - a comparative genetic analysis. The results from this project will add to our basic knowledge of the way in which environmental factors influence flowering in plants. The timing and duration of flowering is a critical determinant of yield for many crop species, and of market value for many ornamental species. A better understanding of the basic genetics and physiology of flowering will thus be relevant for plant breeders and horticulturalists seeking to modify flowering responses to suit particular production strategies, and will help to maintain the strong position of Australia as a world leader in applied aspects of plant/environment interactions. It will also strengthen the international reputation of Australia for high-quality basic research in plant development .Read moreRead less
Special Research Initiatives - Grant ID: SR0354745
Funder
Australian Research Council
Funding Amount
$20,000.00
Summary
International Network for Genomics of the Root-Soil Interface (INGORSI). INGORSI brings together a new group of leading Australian and International researchers with common interests in the application of bioinformatics and genomics to understanding the root-soil interface, particularly the microbiology of this interface. The Network will communicate via a novel ?virtual? seminar room, with a research focus on molecular signals between organisms and plants of the rhizosphere that promote or pre ....International Network for Genomics of the Root-Soil Interface (INGORSI). INGORSI brings together a new group of leading Australian and International researchers with common interests in the application of bioinformatics and genomics to understanding the root-soil interface, particularly the microbiology of this interface. The Network will communicate via a novel ?virtual? seminar room, with a research focus on molecular signals between organisms and plants of the rhizosphere that promote or prevent plant growth, and also potentially impact human health. The network will facilitate high quality basic science, with linked programs that promote its application, to produce outcomes of benefit to plant crops, human health and sustainable agriculture.Read moreRead less