249 resultados para Works in Progress
Resumo:
The farming systems and agribusinesses of the inland Burnett and southern coastal cropping regions of Queensland are becoming increasingly interlinked as grain legume crops, a key component of dryland cropping systems, become more firmly entrenched in the coastal sugarcane cropping areas. Soybeans, peanuts and possibly winter cereals like barley have a real and demonstrated role in sugarcane rotations, and assistance with the integration of those crops into viable and sustainable cropping systems with sugarcane will be critical to the futuer development of these industries.
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Sorghum grown in India in the post-rainy season (Rabi) relies on residual soil moisture, and the crop is commonly exposed to terminal drought stress. But there is a ready market for its high-quality grain and stover (used as fodder on dairy farms). Steps to improve productivity while maintaining quality offer an attractive opportunity for sorghum farmers to improve their incomes. Genetically improving the efficiency of using stored soil moisture is a prime target to maximise grain/stover production and quality of Rabi sorghum. This project aims to achieve this through the application of DNA sequences known as quantitative trait loci (QTLs). The project scientists will introduce marker-assisted introgression of stay-green QTLs into sorghum lines, enhancing both the quality and the quantity of grain/stover of postrainy sorghum. They will also use modelling to identify the key physiological traits involved in a higher, more stable yield across water-limited environments of India and Australia, and the key stay-green QTLs contributing to these traits. The publicly available QTL isolines lines developed in this project will be the basis of new varieties to be bred in a subsequent phase.
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The objectives of this projects are: 1)To ensure the identification of genomic DNA markers for phosphine resistance in Rhyzopertha dominica and Tribolium castaneum; 2) To determine gene function of identified phosphine resistance genes in Rhyzopertha dominica and Tribolium castaneum; and 3) Predict future problems by characterising international resistances using our genes as a starting point to determine strong resistance can get by determining similarities with Australia.
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The previous projects (phase I - III) highlighted that northern region wheat and barley cultivars differ considerably in their sensitivity to herbicides. The new project will focus on increased screening of advanced breeding lines and new cultivars lines to commonly used herbicides, for barley, chickpea and wheat. Studies on impact of environment on herbicide x genotype responses will also be undertaken with the national team. The new information will be added to the existing information package on herbicide tolerance. Thus, adverse impacts of herbicides on productivity in northern region will be reduced, as growers and agronomists will select safer herbicides for their sown variety, or select more tolerant varieties for their important herbicides.
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Insect pest diagnostics.
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Quantify soil C stocks in grains and sugarcane cropping systems of Queensland, including impacts of management practices.
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This project will develop and deliver improved integrated weed management strategies for weeds at risk of glyphosate resistance and species shift in transgenic farming landscapes. It will also facilitate the stewarship of glyphosate and transgenic technology, improving the sustainability of both the herbicide and the genes.
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Collaborative project with Indian partners to study the genetics of phosphine resistance in Indian strains of grain pests.
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Increasing the productivity of irrigation water use and reducing energy use in rural irrigation within the Central Highlands and Dawson-Callide irrigation districts.
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Project to evaluate the role of brassica crops in the western farming system area.
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Fifty species in five genera of fungus feeding thrips, collected in part by Bush Blitz, are described. Details of 35 new species are combined with species previously named but not recognisable from literature, and illustrated identification keys to all species published. All specimens are data-based. These thrips are important ecologically, being associated with nutrient recycling from dead plants, and as food for various birds, lizards and frogs.
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Education and support to imporve soil carbon in the Condamine catchment.
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Strategic research on developing and improving chemical and non-chemical tactics, weed ecology and herbicide application for problem and emerging weeds of summer fallows in the main cropping regions of the northern region.
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Aims to build adaptive capacity within Qld's mixed farming (cropping/beef) sector.
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Management of Tobacco streak virus in sunflower and pulse crops.