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Catalogue: GRDC Updates
We currently do not have a good understanding of the impact of aphids on winter cereal yield and quality in Australia... There have been relatively few trials that have demonstrated the relationship between aphid infestation and impacts on yield... The location of aphid infestations on the plant, and the timing of these infestations relative to crop maturity have a big impact on how yield and quality will be affected...
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Catalogue: GRDC Updates
Some wheat varieties have the ability to store water soluble carbohydrates (WSC) that can be used as a reserve of assimilates for grain filling in the event of water deficit at the end of the growing season... The results may go some way to explaining why selection for yield in Eastern Australian breeding programs has not resulted in new varieties with increased WSC accumulation, as has been observed in the West Australian and CIMMYT breeding programs (van Herwaarden and Richards, 2002)... Previous work has shown that carbohydrate accumulation is moderately heritable (Ruuska et al., 2006)...
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Catalogue: GRDC Updates
The paper reports findings from field studies using radioactive tracers and desiccation treatments to estimate the relative contributions of plant components to grain yield in NSW... Tracer measurements at maturity showed that assimilates produced in all plant components after anthesis were equally present in the grain at maturity... The contribution of pre-anthesis stem reserves to grain yield was assessed by the reduction in WSC...
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Catalogue: GRDC Final Reports
FINAL REPORT DAW00032: Improving weed management with biserrula in the pasture phase of WA cropping systems - Dr Clinton Revell, DAFWA Result Summary (i) Pasture /crop rotation trial - Cunderdin (central wheatbelt).. Santorini Rotations: PCPCP, PCCCP Tillage in crop years: cultivate/seed (CS), direct drill (DD) Main plot size: 35m x 12m, three replicates.. 1.after plots cultivated for CS treatment..
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Catalogue: GRDC Final Reports
In addition to testing a large number of wheat, barley and canola genotypes for K efficiency, we measured growth and K uptake and partitioning with respect to K supply in the topsoil and subsoil plus the impact of topsoil drying, which frequently occurs in the second part of the season in the Mediterranean climate of the Western Australia wheatbelt... It is absolutely clear that there is a substantial difference in K efficiency among current commercial cultivars and advanced breeding lines of wheat, barley and canola and there is need for targeted field testing of this superb germplasm in connection with established breeding programs to increase the level of K efficiency in the locally-adapted germplasm... K application increased the number of heads/m2 (p<0.01) but not the number of grains per head or the harvest index at West Moora...
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Catalogue: GRDC Publications
To compare yields of varieties in a specific region select Long Term Results from the trial options balloon... Growers in districts at risk of pre-harvest rains are advised to avoid delaying harvest of these varieties... The Eyre Peninsula in autumn but wide Growers are encouraged to dispersal of stem rust in spring is thought maintain this level of resistance and avoid to have originated from a very early sown adopting varieties more susceptible than crop of Kite wheat at Baroota in the Mid Gladius and Yitpi...
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Catalogue: GRDC Final Reports
The varieties have enhanced the quality and productivity of the durum industry in both regions and supported local pasta manufacturers, millers and exporters... Objectives The main objective of the project was to organise durum wheat breeding on a national basis and provide new varieties to the durum industry that maintain the world class quality of Australian grain and provide growers with improvements in yield and disease resistance... Results from 2011 NSW NVT have indicated a 10% yield improvement in Caparoi over Wollaroi and a 6% yield improvement over EGA Bellaroi whilst maintaining the quality standards set by EGA Bellaroi...
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Associated key phrases

crop (2)
grain (4)
variety (2)
wheat (3)