Written by cpm from CPM Magazine
Download PDF Yellow rust has become the bane of both growers and plant breeders over the past decade. At last month’s UK Cereal Pathogen Virulence Survey (UKCPVS) meeting, delegates heard why the disease has become so unpredictable when it comes to the robustness of varietal resistance. CPM reports. Yellow rust pathotypes present at the beginning of the season could be very different those present at the end, even in the same area of the field. By Lucy de la Pasture There was a time when yellow rust was predictable. Every five to ten years a new variant would arise and then become dominant, often in response to the area of a particular wheat variety being grown at the time. Disease outbreaks followed certain weather patterns and resistance bred into varieties was both dependable and durable, that is until there was a step-change in the yellow rust population and an adjustment in variety choice became necessary. But then everything changed with the arrival of the Warrior race. The UK yellow rust population used to be clonal, with one dominant race at any given time, explains Rachel Goddard, cereal pathologist at Limagrain. “New variants would arise and over time become dominant and…
The post Keeping ahead of a changing disease appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing here: http://www.cpm-magazine.co.uk/subscribe/
Download PDF Yellow rust has become the bane of both growers and plant breeders over the past decade. At last month’s UK Cereal Pathogen Virulence Survey (UKCPVS) meeting, delegates heard why the disease has become so unpredictable when it comes to the robustness of varietal resistance. CPM reports. Yellow rust pathotypes present at the beginning of the season could be very different those present at the end, even in the same area of the field. By Lucy de la Pasture There was a time when yellow rust was predictable. Every five to ten years a new variant would arise and then become dominant, often in response to the area of a particular wheat variety being grown at the time. Disease outbreaks followed certain weather patterns and resistance bred into varieties was both dependable and durable, that is until there was a step-change in the yellow rust population and an adjustment in variety choice became necessary. But then everything changed with the arrival of the Warrior race. The UK yellow rust population used to be clonal, with one dominant race at any given time, explains Rachel Goddard, cereal pathologist at Limagrain. “New variants would arise and over time become dominant and…
The post Keeping ahead of a changing disease appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing here: http://www.cpm-magazine.co.uk/subscribe/