Oilseed rape update on new rl varieties and disease management
Download
1 / 20

Oilseed Rape Update on new RL varieties and disease management - PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on

Oilseed Rape Update on new RL varieties and disease management. Paul Gosling Research & KT Manager (Agronomy). Recommended list new additions for 2012. Oilseed rape. * The spring OSR list is descriptive. Spring varieties. New. Yield. Winter varieties.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Oilseed Rape Update on new RL varieties and disease management' - tova


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Oilseed rape update on new rl varieties and disease management

Oilseed RapeUpdate on new RL varieties and disease management

Paul Gosling

Research & KT Manager (Agronomy)



Oilseed rape

* The spring OSR list is descriptive


Spring varieties
Spring varieties

New

Yield



Seasonal variation in oilseed rape e w yields controls new
Seasonal variation in oilseed rape E/W yields (controls & new)

Average yield gain worth £140/ha based OSR @ £350/tonne


Restored hybrid varieties
Restored hybrid varieties new)

New

Resistance

DK Expower contains the RLM7 resistance gene giving good resistance to Phoma


Conventional varieties
Conventional varieties new)

New

Agronomy

DK Camelot is an earlier maturing variety


Semi dwarf rh east west
Semi-dwarf RH - East/West new)

New

Yield

Agronomy

Thorin is a high yielding semi dwarf variety with short stiff stems


Clubroot resistant rh
Clubroot resistant RH new)

New

Yield

Resistance

Cracker provides growers with a combination of light leaf spot resistance and clubroot resistance



Clubroot
Clubroot new)

RD-2007-3373

Management of clubroot (Plasmodiophora brassicae)

in winter oilseed rape

RD-2008-3525

Brassicas: Further Development of “in field” tests for resting spores of clubroot and the development of clubroot control based on detection

Healthy

Diseased


Clubroot distribution
Clubroot distribution new)

RD-2007-3373

50% of Scottish samples

54% of English samples



Clubroot persistence
Clubroot persistence new)

Modelled from Swedish data



Project conclusions
Project conclusions new)

  • Clubroot can cause significant yield loses in OSR even crop failure.

  • Neither varietal resistance or soil amendments offer complete and reliable control.

  • The risks of clubroot increase when brassicas are grown in short rotations (less than 1 in 5?)

  • Preventative action with lime will be beneficial in managing this disease where pressure is low.

  • Varietal resistance is likely to be very successful initially but will be eroded in short rotations.



Oilseed rape 2012 and beyond
Oilseed Rape 2012 and beyond new)

  • New RL varieties showing increased yield and improved agronomic characteristics

  • Watch for signs of clubroot - consider management options


Thank you

Thank you new)


ad