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commercial wheat variety

Catalogue: GRDC Media
After the plants have grown for 18 weeks, the nematodes are extracted from the soil and roots, and counted under a microscope to determine which plant lines have reduced nematode multiplication... Root-lesion nematodes (RLN) are considered most likely endemic to the Fertile Crescent region in the Middle East where wheat originated some 8,000 years BCE. From there, RLN probably spread around the world with grain cultivation across North Africa, Europe, America, and finally Australia... "We realised the resistances that aren't available in commercial wheats, do exist in their ancient ancestors," says Professor John Thompson, Crop Nematologist at University of Southern Queensland' who supervises the GRDC-funded wheat pre-breeding program into genetic options for RLN control...
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Catalogue: GRDC Media
After the plants have grown for 18 weeks, the nematodes are extracted from the soil and roots, and counted under a microscope to determine which plant lines have reduced nematode multiplication... Root-lesion nematodes (RLN) are considered most likely endemic to the Fertile Crescent region in the Middle East where wheat originated some 8,000 years BCE. From there, RLN probably spread around the world with grain cultivation across North Africa, Europe, America, and finally Australia... "We realised the resistances that aren't available in commercial wheats, do exist in their ancient ancestors," says Professor John Thompson, Crop Nematologist at University of Southern Queensland' who supervises the GRDC-funded wheat pre-breeding program into genetic options for RLN control...
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Catalogue: GRDC Updates
NGA have been involved in 22 field trials since 2007, in collaboration with Steven Simpfendorfer I&I NSW, evaluating the impact of crown rot (CR) on a range of winter cereal crop types and varieties... During 2007 & 2008 a common series of 5 bread wheat varieties, 4 barley varieties and 1 durum were evaluated in all 18 trials... 2. Less apparent range in variety Pt tolerance than seen for bread wheat Figure 5 shows the variety yield performance compared to EGA Wylie for all varieties evaluated in both 2008 and 2009...
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Catalogue: Ground Cover
The wild, ancient ancestors of wheat are a vital key to solving the problem of root lesion nematodes in Australia, researchers now believe... Northern growers currently have no commercial wheat varieties that resist the ravages of RLN, and the massive yield losses they experience each year are of great concern to the industry... Since there are no available commercial wheat varieties with resistance to RLN, choosing varieties that are tolerant, such as EGA Gregory , is a good first step in managing their populations (see the 2014 Queensland Wheat Varieties Guide )...
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Catalogue: GRDC Updates
NGA have been involved in 22 field trials since 2007, in collaboration with Steven Simpfendorfer I&I NSW, evaluating the impact of crown rot (CR) on a range of winter cereal crop types and varieties... Although the trials were not designed to focus on nematodes, a convincing trend was apparent after 2008 that indicated the root lesion nematode Pratylenchus thornei (Pt) may be having a wider and larger impact on actual yield than previously expected... Figure 5 shows the variety yield performance compared to EGA Wylie for all varieties evaluated in both 2008 and 2009...
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Catalogue: Ground Cover
Speed breeding wheat to tackle root lesion nematodes.. A team of geneticists including Dr Lee Hickey and Dr Mark Dieters from the Queensland Alliance for Agriculture and Food Innovation - a joint venture between the University of Queensland (UQ) and the Queensland Department of Agriculture, Fisheries and Forestry (DAFF) - have been using speed breeding as part of a strategy to create a strain of 'super wheat'... Queensland DAFF's program aims to develop more elite lines in more varieties with enhanced genetic resistance and tolerance, using diverse sources of RLN resistance, to improve the level and durability of the resistant varieties released to the grains industry...
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Catalogue: GRDC Final Reports
Early vigour is an important trait in improving the competitive ability of wheat, which helps to restrict increases in the weed seedbank... The outcome can only be achieved through breeding that will target specifically high vigour backgrounds because there is limited variation for competitive ability among Australian wheat varieties... Studies in UA00061 were based on using cultivated oats as the weed competitor but there is a need to assess stability of competitive ability across weed species...
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Catalogue: GRDC Final Reports
" Attachment 3 Project DAW00141 Developing a sensitive dry seed test to detect seed-borne viruses in bulk seed samples of wheat A diagnostic test for Wheat streak mosaic virus in bulk samples of wheat seed.. A test to detect presence of seed coat contamination with Wheat streak mosaic virus (WSMV) in bulk samples of wheat seed was developed and made available commercially through AGWEST Plant Laboratories... The aim of the research was to develop a robust, routine diagnostic test to detect contamination with WSMV in representative bulk samples from wheat seed stocks...
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Catalogue: GRDC Updates
Excessive application of N may increase susceptibility of the crop to disease and increase water use early in the growing season whereas insufficient application may limit grain yield, grain protein and subsequent profitability... As part of the GRDC funded VSAP project, five nitrogen use efficiency trials were conducted in 2011 at Trangie, Condobolin, Parkes, Coonamble and Spring Ridge, as well as a sowing time trial at Trangie, with these trials used in this paper to assess the grain yield and grain protein concentration of several commercial wheat varieties... N application increased the protein of all the varieties, with protein increases being recorded up to 160 kg/ha of applied N...
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