You are here

root growth

Catalogue: GRDC Research Summaries
It is well established that genotype has a large influence on the development pattern of wheat but little is known about how development and growth are related... There is some experimental evidence that vigour (or early growth) is positively related to developmental rate but this was obtained in the field and did not take root growth into account... The aim of the project is to explore this relationship by carefully measuring whole-plant growth of genotypes varying in vernalisation responsiveness...
Related categories:
Catalogue: GRDC Updates (North)
There is only an extremely small risk of WSMV being spread through seed... Wider row spacings and higher plant populations will result in a more even and shorter flowering period and harvest, due to reduced tillering (Thomas et al 1980)... It is highly likely that plant population should be somewhere in the range 100 to 150 plants/m 2...
Related categories:
Catalogue: GRDC Updates (South)
There is only an extremely small risk of WSMV being spread through seed... Wider row spacings and higher plant populations will result in a more even and shorter flowering period and harvest, due to reduced tillering (Thomas et al 1980)... It is highly likely that plant population should be somewhere in the range 100 to 150 plants/m 2...
Related categories:
Catalogue: GRDC Final Reports
The findings of the project may provide encouragement to growers to use a number of management strategies to avoid the disease... Previous reports indicate that the disease becomes worse under conditions that reduce root growth, although very little is known of where and how the fungus invades roots... The developing GRDC Initiative on Rhizoctonia could build both of the aspects above into consideration of integrated management strategy for future farming systems utilising the equipment (microscopy and field and laboratory approaches) and ideas generated within the project...
Related categories:
Catalogue: GRDC Media
Research unearthing insights into costly soilborne disease.. Dr Alan McKay, of the SA Research and Development Institute (SARDI) Soil Biology and Molecular Diagnostics unit, says the current research program aims to improve disease prediction, reliability of existing control strategies and support development of new methods of control... Caption: Dr Alan McKay of SARDI's Soil Biology and Molecular Diagnostics unit, pictured speaking at a GRDC grains research Update, says the GRDC-funded Rhizoctonia research program aims to improve disease prediction, reliability of existing control strategies and support development of new methods of control...
Related categories:
Catalogue: GRDC Media
Research funded by the Grains Research and Development Corporation (GRDC) is making significant progress towards improving options for the management of Rhizoctonia bare patch disease, which is presenting as a potential threat to cereal crops this season... Dr Alan McKay, of the SA Research and Development Institute (SARDI) Soil Biology and Molecular Diagnostics unit, says the current research program aims to improve disease prediction, reliability of existing control strategies and support development of new methods of control... Caption: Dr Alan McKay of SARDI's Soil Biology and Molecular Diagnostics unit, pictured speaking at a GRDC grains research Update, says the GRDC-funded Rhizoctonia research program aims to improve disease prediction, reliability of existing control strategies and support development of new methods of control...
Related categories:
Catalogue: GRDC Updates
New fungicides, Vibrance and EverGol Prime have been registered as seed treatments to suppress Rhizoctonia.. Vibrance and EverGol Prime have been evaluated as seed treatments to suppress Rhizoctonia in field trials conducted by SARDI and DAFWA in 2011 and 2012... The type of soil opener used affects levels of Rhizoctonia during seedling establishment...
Related categories:
Catalogue: GRDC Updates
One proposal is that supplying a concentrated source of P allows the root system to forage more widely and exploit a greater volume of soil, and a greater amount of P may be available to generate biomass, and ultimately yield... Observing real root behaviour, examining root length, density and proliferation and converting that to C allocated allows us to understand whether we can use both our applied P investments more effectively, and create root architecture that is more profitable... We are currently using micro-CT scanning to monitor cereal root behaviour in response to patches of P. These techniques involve growing cereals in small columns that are able to be easily scanned, and reconstructing the root systems of these cereals in 3D to allow root responses to be observed as they develop...
Related categories:
Catalogue: GRDC Updates
Reducing Rhizoctonia disease in cereals.. The type of soil opener used affects levels of Rhizoctonia during seedling establishment... Early research results show fungicides applied in furrow can overcome much of the vulnerability of disc systems to Rhizoctonia and enhance yields with knife points...
Related categories:

Catalogue: GRDC Final Reports
Previous reports indicate that the lack of soil cultivation and the use of sulfonyl-urea herbicides also exacerbate disease... Chapter 6: Influence of Temperature on Infection Data from earlier Chapters revealed that infection of wheat roots occurred closer to seeds at low temperature, the rates of root and hyphal growth converged at low temperature, and that seed exudation stimulated growth of R. solani AG-8 more at low temperature... Chapter 7: Final Discussion Results of these experiments demonstrate that low temperature exacerbates rhizoctonia root rot of wheat by causing several simultaneous changes in roots and hyphae that are conducive to disease...
Related categories:

Pages