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plant response

Catalogue: GRDC Media
In recent years there has been a tendency to move some earlier maturing varieties into earlier sowing times, increasing frost risk at flowering... Research Agronomist with Howqua Consulting, Dr Peter Martin, told growers and agronomists attending the recent Grains Research and Development Corporation (GRDC) Northern Grains Research Updates that there had been a tendency to move some earlier maturing varieties into earlier sowing times in recent years, increasing frost risk at flowering... "Understanding how and why varieties fall into certain classifications and then matching sowing date can have a significant impact on frost risk management and crop production and profitability."..
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Catalogue: GRDC Final Reports
The project achieved good progress in characterising a novel herbicide-responsive switch (HRE1) including a detailed mutational analysis to determine critical nucleotides important for HRE1 activity... The project identified R. solani strains with a range of pathogenicity, a susceptible mutant and genes whose expression correlates well with resistance to R. solani... A number of transgenic lines containing the construct were generated and used for further analysis, with HRE1 activity being measured by light emitting units per plant in different tissues, during plant development and in response to important plant defence and stress signals...
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Catalogue: GRDC Final Reports
Homology to known stress-responsive genes and the results presented show that the transcription factors identified in this project are involved in plant salt stress responses... Further experiments should be performed to determine the role of these transcription factors in plant responses to salt stress... In the project, the aim was to identify transcription factors that are important in regulating genes involved in salinity tolerance...
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Catalogue: GRDC Media
Material will help breed locally-adapted wheat.. Australian wheat breeders have been presented with a smorgasbord of genetic material which will allow them to breed new varieties with flowering times specifically adapted to different production areas... Dr Trevaskis said the new wheat lines were being evaluated by the CSIRO this year in field trials at locations including Merredin...
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Catalogue: GRDC Final Reports
It is recommended that the ability to predict both dry matter (important for hay) and grain response is assessed over successive growing seasons with contrasting climatic conditions... Previous work has shown potential complications associated with current soil P testing methods such as Colwell P and resin P. But the relatively new method called DGT appears to overcome these problems... To prove the ability of DGT to assess micronutrient deficiency, further work is required looking at dry matter and grain responses under field conditions as performed in this project (UA00095) with phosphorus...
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Catalogue: Ground Cover
Paul Telfer: The most adverse effects of heat stress on yield have been found to occur during flowering rather than grain fill... The wheat plant is most sensitive to heat stress during flowering and grain filling, and 'heat-stress events' often coincide with drought stress and frost events... In the short term, the data collected has highlighted that current best practice in terms of sowing time and appropriately matching it to crop maturity are the best ways to minimise the effects of heat stress on crop production...
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