You are here

dr wellings

Catalogue: Ground Cover
New pathotype virulent to the Yr17 resistance gene identified in two crops.. A new pathotype of stripe rust showing potential resistance to the Yr17 resistance gene has put a question mark over all varieties depending on that gene - including some, such as Ventura, which showed promise as a replacement for the popular, but highly susceptible, H45 variety... [Photo (left) by Brad Collis: Dr Harbans Bariana is working on the development of early plant resistance in the ongoing fight against stripe rust.] "Previous experience suggests that when a pathotype overcomes a resistant gene present in a large number of varieties, it has an advantage and can spread quite rapidly, so it could become more dominant," Dr Wellings says...
Related categories:
Catalogue: Ground Cover
Understanding the strategies required to fight stripe rust is now a year-round job for everyone in the industry, reports Helen Olsen.. Mr Matt Williams retrieving stored rust samples from the rust pathogen collection at the Plant Breeding Institute at Cobbitty, NSW. Rust spores are stored in "suspended animation" in liquid nitrogen at -196C so they can be retrieved when needed for ongoing research... Dr Hollaway recommends fungicide spraying before the level of rust has increased to one percent (40 leaves infected in every 100 plants) to stop the exponential growth of the rust: "The message from overseas has been to treat plants with fungicide at certain plant growth stages, but really the application of fungicide needs to coincide with the development of the rust infection."..
Related categories:
Catalogue: GRDC Media
Cereal disease management planning critical this season Grain growers throughout the southern cropping region are being reminded of the critical need for cereal disease management planning this season... Growers need to know what to expect with the disease response of each variety of crop sown," said Dr Wellings, whose work is supported by the Grains Research and Development Corporation (GRDC). ".. The ultimate goal of the campaign is to encourage growers to phase out susceptible and very susceptible varieties from their rotation where possible but if these cultivars are grown, then farmers need a management plan ready in advance in case of a rust outbreak...
Related categories:
Catalogue: GRDC Media
Cereal disease management planning critical this season Grain growers throughout the southern cropping region are being reminded of the critical need for cereal disease management planning this season... Growers need to know what to expect with the disease response of each variety of crop sown," said Dr Wellings, whose work is supported by the Grains Research and Development Corporation (GRDC). ".. The ultimate goal of the campaign is to encourage growers to phase out susceptible and very susceptible varieties from their rotation where possible but if these cultivars are grown, then farmers need a management plan ready in advance in case of a rust outbreak...
Related categories:
Catalogue: GRDC Media
Dr Colin Wellings, University of Sydney, Plant Breeding Institute (PBI) on secondment from NSW Department of Primary Industries (NSW DPI) says a growing body of data is shedding new light on rust management for growers... The report is available from www.nvtonline.com.au/reports and Dr Wellings urges growers to take advantage of the large amount of information now contained on the site... "While the data for stripe rust have been the subject of focused attention by pathologists and breeders across the majority of the Australian wheat growing regions for many years, leaf rust and stem rust have been more sporadic," he said...
Related categories: