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wheat root

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Catalogue: GRDC Updates
Dry weight response of crops to increasing P levels with and without mycorrhizal fungi in the soil... Unlike saprobic soil fungi, which colonise and break down organic matter and do not require a host plant in the system to complete their lifecycle, arbuscular mycorrhizal fungi (AMF), the type found in cropping systems, do require the presence of a host to reproduce and are called obligate symbionts... Having adequate populations of mycorrhizal fungi present in soils can be beneficial and in some cases essential for crop growth...
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Catalogue: GRDC Updates
3. Choose tolerant wheat varieties to maximise yields (go to nvtonline.com.au).. From our research, the optimal temperature for reproduction of Pratylenchus thornei is 22C; populations increased, although at slower rates, from 17 to 28C... We have also found reduced growth and yield of wheat and chickpea following canola in a low phosphorus soil (7 mg/kg Colwell P) in two separate 2-year winter crop rotation experiments...
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Catalogue: Ground Cover
Researchers in different cropping regions are studying how to lift nutrient use efficiency by manipulating a crop's root systems.. In the south and west, Dr Manny Delhaize from CSIRO Agriculture has discovered that root hairs play a key role in improving the phosphorus use efficiency of wheat in acid soils... University of New England Associate Professor Chris Guppy is using 3-D computer-aided images (above) of cereal root systems supplied with phosphorus to identify whether they have the capacity to respond to the deep nutrient placement strategies being developed in the northern grains region...
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Catalogue: Ground Cover
Researchers in different cropping regions are studying how to lift nutrient use efficiency by manipulating a crop's root systems.. In the south and west, Dr Manny Delhaize from CSIRO Agriculture has discovered that root hairs play a key role in improving the phosphorus use efficiency of wheat in acid soils... University of New England Associate Professor Chris Guppy is using 3-D computer-aided images (below right) of cereal root systems supplied with phosphorus to identify whether they have the capacity to respond to the deep nutrient placement strategies being developed in the northern grains region...
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Catalogue: GRDC Updates
One proposal is that supplying a concentrated source of P allows the root system to forage more widely and exploit a greater volume of soil, and a greater amount of P may be available to generate biomass, and ultimately yield... Observing real root behaviour, examining root length, density and proliferation and converting that to C allocated allows us to understand whether we can use both our applied P investments more effectively, and create root architecture that is more profitable... We are currently using micro-CT scanning to monitor cereal root behaviour in response to patches of P. These techniques involve growing cereals in small columns that are able to be easily scanned, and reconstructing the root systems of these cereals in 3D to allow root responses to be observed as they develop...
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Catalogue: GRDC Final Reports
Left uncontrolled, weed flushes impact on soil water storage... The effects of different summer fallow management practices on soil water storage were studied using a replicated field trial with five treatments: (1) stubble harvested for straw with strict weed control, (2) stubble left standing after harvest with or (3) without weed control, and (4) stubble flattened (as with Coolamon harrow) with or (5) without weed control... We used a simulation study to generate a range of different starting subsoil water contents by changing the simulated weed management during the summer fallow...
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Catalogue: GRDC Research Summaries
The aim of the project is to apply the new genetic model for wheat, Brachypodium distachyon, to speed up gene discovery in wheat root systems... The objectives are to (1) assemble a collection of diverse Brachypodium germplasm for this project and other Australian researchers; (2) screen Brachypodium genotypes for variation in root vigour, architecture, water uptake and tolerance to wheat root pathogens, and (3) identify genomic regions and markers associated with root traits in wheat using Brachypodium... http://www.nature.com/news/2010/100728/full/466552a.html - international; 53,000 circulation; ~400,000 readership - Impact factor 32 Peer reviewed journals Brkljacic et al (19 international authors including Watt) (2011) Brachypodium as a model for the grasses: Today and the future...
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Catalogue: GRDC Research Summaries
The aim of the project is to apply the new genetic model for wheat, Brachypodium distachyon, to speed up gene discovery in wheat root systems... The objectives are to (1) assemble a collection of diverse Brachypodium germplasm for this project and other Australian researchers; (2) screen Brachypodium genotypes for variation in root vigour, architecture, water uptake and tolerance to wheat root pathogens, and (3) identify genomic regions and markers associated with root traits in wheat using Brachypodium... http://www.nature.com/news/2010/100728/full/466552a.html - international; 53,000 circulation; ~400,000 readership - Impact factor 32 Peer reviewed journals Brkljacic et al (19 international authors including Watt) (2011) Brachypodium as a model for the grasses: Today and the future...
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Catalogue: GRDC Research Summaries
The proposed work capitalises on new knowledge demonstrating the highly significant role played by beneficial symbiotic arbuscular mycorrhizal (AM) fungi in supplying P to cereals... The new findings show that there is a switch from direct root uptake to AM fungal uptake in AM cereals and that the fungal symbionts have the potential to make a major contribution to the biological capacity of soils to deliver P to the crop plants and contribute to P cycling... World-leading soil biologists are preparing to shed new light on the "secret" life that exists within Australia's agricultural soils at the Soil Biology Symposium on 15 May 2014...
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Catalogue: GRDC Research Summaries
The proposed work capitalises on new knowledge demonstrating the highly significant role played by beneficial symbiotic arbuscular mycorrhizal (AM) fungi in supplying P to cereals... The new findings show that there is a switch from direct root uptake to AM fungal uptake in AM cereals and that the fungal symbionts have the potential to make a major contribution to the biological capacity of soils to deliver P to the crop plants and contribute to P cycling... Grain growers, advisers and researchers are invited to attend a free national symposium in May to learn about the latest soil biology research...
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