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GRDC Final Reports

Reports from projects funded by the GRDC

Registered items

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The brochure lists the range of support currently available... 1. NEWSLETTER - State Outlook The newsletter interprets what can be confusing information into information that can be utilised by primary producers across the state to make management decisions... NOTE: The models utilised for the outputs available for subscription were developed by the Bureau of Meteorology, Department of Agriculture and Food, Western Australia and the Department of Natural Resources and Mines Queensland, Agricultural Production Systems Research Unit (APSRU) and Commonwealth Scientific and Industrial Research...
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In order to draw better conclusions from the mail survey and also to monitor the problematic weeds in that agro-ecological zone, a field survey of weeds in wheat and canola crops was conducted in October and November 2003... In a survey of weeds in 1998 by the Cooperative Research Centre (CRC) for Weed Management Systems and the mail survey in 2001 (UM141) farmers in higher rainfall regions of Victoria nominated annual ryegrass to be the most difficult weed to control... Both this survey and the CRC survey showed cape weed as moderately difficult to control...
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Mean ( s.e.) number of green peach aphids collected at various distances into a canola paddock nine weeks after aphids were released at the paddock edge... Four treatments represented all combinations of aphids released and an 18m buffer treatment of imidacloprid applied as a seed dressing (indicated by the shaded area on the graph)... Mean ( s.e.) percent beet western yellows virus infection of plants collected at various distances into a canola paddock nine weeks after virus-infective aphids were released at the paddock edge...
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The project has provided technological support to improve sprouting resistance in wheat by Australian wheat breeders by annual phenotyping of advanced breeding lines, development of improved screening technologies including molecular markers, and germplasm with improved sprouting resistance based on grain dormancy... Given that grain dormancy is a difficult trait to manipulate due to interactions with both maturity and the environment, molecular markers tightly linked to the major QTLs are a high priority... Results from dormant x non-dormant crosses and reciprocal crosses indicate that 2-...
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" Attachment 2 Project DAQ00015: Crop improvement of grain sorghum in Australia - core breeding Details of germplasm licensed... Some of the lines were licensed to multiple breeding programs with a total of 467 licenses being granted... Due to the long lead time of breeding processes all of the crosses that produced these lines were initiated prior to the commencement of DAQ00015 and fall under previous breeding projects for IP purposes (see Attachment 1 for commercialisation details)...
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KEYMESSAGES Herbicide tolerance varies widely between pasture legume species... A wide range of herbicide treatments was sprayed across 13 pasture varieties/lines which included four Medicago species (medics) and five species to be commercialised: Trigonella balansae, bladder clover, purple clover, Moroccan clover and the soon to be released Eastern star clover ( Trifolium dasyurum)... Herbicide treatments included post-sowing pre-emergent (PSPE) application of Spinnaker #and Dual Gold #. The post emergent (PE) treatments were applied at the 4-6 leaf stage on 10-11 July...
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Abstract: Field experiments were conducted at Warooka and Rudall on the Yorke and Eyre Peninsula of South Australia during the 2004 and 2005 growing seasons to investigate the effectiveness of metribuzin for the selective control of rigid brome in no-till sown barley (Hordeum vulgare)... Incorporated by sowing (IBS) metribuzin (202.5 to 270 g ai/ha) was more effective in controlling rigid brome (>75%) than the same herbicide dose applied postemergence (POST)... Although metribuzin at the highest rate (270 g ai/ha) provided superior weed control, it was more phytotoxic to barley, reducing i...
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Evaluation of the effect of vetch grain on lamb growth Two experiments were conducted to investigate the effect of vetch grain on lamb growth... In the second experiment, lambs were additionally given very low quality oaten hay (10kg/group/day)... Lambs were introduced to grain commencing at 100g/head/day; an additional 100g was fed each day until supply reached the level of 15g/kg live weight...
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Embryo rescue and plant regeneration in vitro of selfed chickpea (Cicer arietinum L.) and it's wild annual relatives.. The aims of this study were to examine embryogenesis in selfed and hybridised ovules; to develop robust techniques to rescue immature embryos in_vitro using selfed chickpea ovules; to regenerate plantlets from rescued chickpea ovules; and to apply the best techniques to rescue interspecific hybrids... Some cross pollinated ovules were rescued in_vitro and putative hybrid plantlets were regenerated...
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" ATTACHMENT FINAL REPORT CSP00071 New resources for breeding for heading date and improved frost tolerance Ben Trevaskis, Research Scientist, CSIRO Division of Plant Industry, QLD (A) Screening diverse barley varieties or landraces for deletions or insertions in intron I of VRN1 (HvVRN1) Deletions in the first intron of HvVRN1 have previously been associated with natural variation in the vernalization requirement of both wheats and barleys... By screening 4400 barley cultivars for insertions or deletions in the first intron, at least 16 alleles of the HvVRN1 gene from barley were identif...
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