You are here

GRDC Updates

Registered items

Catalogue: 
The goal of the UAV is to provide another Precision Technology tool to growers in the decision making process to identify better management practices that achieve higher yield and profit outcomes for growers... The UAV will be another component of precision technology that most growers are already using such as yield mapping, EM surveys, satellite NDVI imagery, and will be used in conjunction, not necessarily as a replacement... If there is a variation in plant biomass or plant health in a specific area and there is a need to quantify the extent of the issue, then the UAV should be able to...
GRDC Taxonomy:
Catalogue: 
The cropping area west of the Warrumbungle ranges has many challenges, in the form of herbicide resistance... Trial results showed that inter-row spraying of Gramoxone in wide row chickpeas could be useful, if it were to be registered for this use. . The same principles apply to canola which enables the inclusion of atrazine trifluralin, Avadex Xtra and Dual Gold... Double knock on glyphosate resistant plants: In March 2007, the first experiment (at Bellata) conducted on glyphosate resistant barnyard grass investigated basic combinations of glyphosate followed by either paraquat or Spray...
Catalogue: 
Minimise risk of virus by retaining standing stubble, planting on time and at optimal seeding rate for rapid canopy closure... During the work, a new polerovirus referred to Phasey bean virus - PhBV (previously thought to be a strain of BWYV) has been identified from many hosts and locations in the northern region (Table 2)... We have used a PCR for Beet western yellows virus (BWYV), Bean leaf roll virus (BLRV), Phasey bean virus (PhBV) and Soybean dwarf virus (SbDV) to investigate host range of the virus species from a range of locations (Table 2)...
GRDC Taxonomy:
Catalogue: 
The SAGIT funded project involves using a controlled environment assay that is run at Roseworthy, to identify and quantify the level of heat stress tolerance in current varieties, advanced breeders lines and exotic lines, as well as using 'gene mapping', to genetically dissect and understand the key sources of tolerance identified to date... Figure 1 illustrates the fertility and grain size response for a subset of varieties to heat stress in the controlled environment assay. In general heat stress causes a significant (p<0.05) reduction in both grain number and grain size, the two key yie...
Catalogue: 
While irrigated production was the focus of the work, the results are relevant to dryland growers in high yielding environments, who have experienced lodging in the last 2-3 years... It is important to note that we used various commercial fungicides to control rust at each location: good disease control is imperative in achieving high yields in susceptible varieties... The soil test just prior to sowing showed 200 units of N to 90cm depth, and another test suggested that a further 200 units of N was available as deep N below 90cm, but it was difficult to know how variable this was across t...
Catalogue: 
Develop approaches to reliably screen for frost tolerance... Identify and select frost tolerant barley and wheat germplasm for use in breeding programs to reduce frost sensitivity of future commercial varieties... Future work will continue refining screening methods, searching for sources of tolerance, work towards developing frost sensitivity ratings of new varieties and validate the impact of frost induced sterility from mild frosts on yield in wheat and barley...
GRDC Taxonomy:
Catalogue: 
Several I & I NSW projects in central western NSW in 2009 aimed to gather data on a number of different wheat varieties that have been quickly adopted as preferred varieties and to compare them to older more well known varieties... To establish some baseline phenology data, a selection of wheat varieties were grown under irrigation and sown at three sowing dates (Figure 1)... Observations recorded 15 August showed marked differences between individual varieties with the effects of plant population having an impact on the rate of crop development as soil moisture was progressively becoming ...
Catalogue: 
Mace has rapidly become the dominant variety in WA for a number of very good reasons and is unlikely to be displaced in the immediate future... Data was sorted by Agzone (see Shackley et al 2012 for map of Agzones of WA), previous crop, subsoil pH, and/or sowing date to look for any specific adaptation of any of the newer varieties compared to Wyalkatchem or Mace... Recent research has also shown that the Spear type wheats (especially Yitpi) are slightly less susceptible to frost damage at flowering than Wyalkatchem types (Ben Biddulph pers...
Catalogue: 
Optimising the performance of the WeedSeeker through better understanding of chemical & water rates, optimal sensor height, speed & correct nozzle selection are all critical... Soil base needs to be set within the area to be sprayed, the boom needs to be set at the correct working height & there should be no weeds present under the sensors... Common mistakes; increasing speed without increasing water & chemical rates to suit & not adjusting speed setting on WeedSeeker ...
GRDC Taxonomy:
Catalogue: 
Options for using more residual herbicides in northern no-till systems.. The list of herbicides that achieved very high levels of control (> 95%) from two replicated experiments were; Dual Gold, Flame, Spinnaker and high registered rates of atrazine (Table 1)... The results presented in this paper originated from various projects funded by GRDC and Industry and Investment NSW...
GRDC Taxonomy:

Pages