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wheat quality

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Catalogue: GRDC Updates
CSIRO has a long track record of making major on-going investment into the genetic improvement of wheat varieties and their agronomy to ensure they fit the target requirements for both the main wheat belt and the High Rainfall Zones of Australia... Underpinning the development of the traits provided to Australian breeders are a series of basic technologies that we are applying to our work... We outline the state of current research efforts supported by public funds (CSIRO, GRDC) with particular emphasis being given to developments that we believe will assist plant breeders in Australian breeding companies to deliver new high quality, well adapted productive wheats that have the ability to counter major constraint factors...
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Catalogue: GRDC Updates
To drive international awareness of the benefits of using Australian wheat... Surveys and interviews of domestic and international users of Australian wheat were conducted in 2010 and 2011... GrainGrowers has established a program to develop a 2011/12 national wheat quality report which will provide benefits to producers and customers of Australian wheat...
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Catalogue: GRDC Final Reports
The effects of genes on traits in wheat of commercial importance were estimated using large plant breeding data sets, diagnostic markers and sophisticated statistical methods... The earliest successes occurred with the genes controlling grain quality in wheat, in particular enabling wheat breeders to select against alleles, or variants, of the glutenin and puroindoline genes that had negative effects on dough rheology traits (dough strength and dough extensibility) and on milling yield... It is suspected that Glu-D3 might interact with storage protein activator (SPA) genes the project team has begun typing the same lines used for Glu-D3 with a diagnostic marker developed by French scientists for SPA-B. Wheat breeding collaborators in Australian Grain Technologies (AGT) and LongReach have given this a high priority, because interactions between SPA and glutenin genes might explain why cultivars such as Bolac have higher than expected grain quality, while the reverse occurs for cultivars such as H45 ...
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Catalogue: GRDC Research Summaries
The publication has been prepared to provide an introduction to Australian wheat quality... We are particularly keen that the publication is of value to growers as it will help to explain the quality factors inherent in the genetic composition of a variety, and those that are influenced by the environment... While farm-gate return in dollars per hectare will always be a grower's key focus, choosing the variety that suits local growing conditions and is attractive to a range of buyers should help achieve maximum financial return...
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Catalogue: GRDC Final Reports
While the approach has enabled population structure to be accounted for, it perhaps imposes a limitation on the effectiveness of using this approach in cereals within breeding programs... The result of the LD study was to confirm that significant levels of LD could be detected within germplasm collections, and that this LD extended over sufficient distance that it could be effectively assayed using currently available marker technologies such as SSRs and DArT... While the methodology used in performing this analysis is radically different to that used in conventional QTL mapping in bi-parental crosses, the fact that identical QTL locations have been derived lends support to the conclusion that association mapping is a viable approach in these clearly defined populations...
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Catalogue: GRDC Updates
There is little recognition of the need or benefit from flours derived from wheat that have been grown in a sustainable manner... Quality is generally assessed by taste, texture and colour... There is an immediate need for industry to explore an appropriate mechanism to facilitate the greater adoption of on-farm quality assurance systems among Australian grain growers...
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Catalogue: GRDC Publications
The project will ultimately seek to provide costeffective screening methods that enable pulse chemists to identify genotypes that have preferred cookingandsensoryattributes... The project will provide genetic materials and molecular tools for barley breeders to use in developing new malting barley varieties with minimum riskof head loss... The objectives of the project are to develop a scientific understanding of the genetic control and environmental basis of differences in HLW and screenings in wheat under normal growing conditions, and to developselection tools to help breeding programs developvarieties that willbe less prone to exhibit low HLW andhigh screenings...
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Catalogue: Ground Cover
Over the past three years, the GRDC has invested in the development of a new commercial DNA test to cost-effectively identify the variety and purity of wheat and barley samples... Barley was used to validate the technique developed by Diversity Arrays Technology (DArT) because of the high quality of varietal purity that maltsters demand and the small number of commercial varieties involved... Table 1: Summary of DNA analysis of variety identification and purity of 1891 wheat samples Traffic light lettering system used to report sample results Results - all samples (1891) A: GREEN: The sample is the nominated variety and is greater than 95% pure...
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Catalogue: Ground Cover
The results of the GRDC-funded project 'Reducing the impact of pulse diseases in the northern region' are available on the GRDC website ( http://finalreports.grdc.com.au/DAQ00108 )... Dr Rainbow says diseases remain a significant impediment to the achievement of maximum yield potential of pulses (chickpeas, peanuts and mungbeans) and sunflowers... Dr Rainbow says the research is important as pulses provide an important disease break in cereal and sugarcane farming systems by reducing soilborne disease levels and improving soil health through their impact on nitrogen levels...
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Catalogue: GRDC Research Summaries
Some wheat varieties carry a defect known as late maturity alpha amylase (LMA) which can result in low falling number at receival... The results indicate that the cool temperature shock increases the sensitivity of the grain to a plant hormone normally present in grains in varieties prone to LMA... School of Agriculture, Food and Wine Postgraduate Symposium (2010) "GA sensitivity and ABA content of developing wheat grains in relation to late maturity alpha-amylase" (oral presentation by Bo Yu to other PhD students and academics of School of Ag., Food and Wine) < Keep browsing..
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