Simple stem rust inoculation of wheat plants
Demonstrating stem rust inoculation of wheat plants by spraying using small-scale, simple equipment rather than a dedicated sprayer, at the Njoro research station, part of the Kenya Agricultural Research Institute (KARI). The spores are in a water suspension, made with a small amount of wetting agent.
Njoro is home to an ongoing screening program, working in close partnership with CIMMYT to identify sources of resistance to the Ug99 race of stem rust. This virulent new strain of the disease, which emerged in Uganda in 1999, is already endemic in the area, making it possible to use Njoro as a testing ground for wheats from all over the world. More than 30,000 wheat lines are now being screened each year.
For more information on stem rust, see CIMMYT's Wheat Doctor: wheatdoctor.cimmyt.org/en/pests-a-diseases/list/122?task=....
For information on collection and inoculation techniques, see the CIMMYT publication "Rust diseases of wheat: Concepts and methods of disease management", available as a pdf at: libcatalog.cimmyt.org/download/cim/38487.pdf.
For more on CIMMYT's ongoing work on Ug99, see the following e-news stories:
2010, "Planting for the future: New rust resistant wheat seed on its way to farmers": www.cimmyt.org/newsletter/231-2010/716-planting-for-the-f....
October 2009, "From Cairo to Kabul: Rust resistant wheat seed just in time": www.cimmyt.org/newsletter/38-2009/460-from-cairo-to-kabul....
December 2008, "Report from the field: Wheat stem rust resistance screening at Njoro, Kenya": www.cimmyt.org/newsletter/37-2008/110-genetic-resources-p....
December 2006, "Threat level rising": www.cimmyt.org/newsletter/82-2006/263-threat-level-rising.
September 2005, "The World’s Wheat Crop is Under Threat from New Disease": www.cimmyt.org/newsletter/86-2005/331-the-worlds-wheat-cr....
Photo credit: Petr Kosina/CIMMYT.
Simple stem rust inoculation of wheat plants
Demonstrating stem rust inoculation of wheat plants by spraying using small-scale, simple equipment rather than a dedicated sprayer, at the Njoro research station, part of the Kenya Agricultural Research Institute (KARI). The spores are in a water suspension, made with a small amount of wetting agent.
Njoro is home to an ongoing screening program, working in close partnership with CIMMYT to identify sources of resistance to the Ug99 race of stem rust. This virulent new strain of the disease, which emerged in Uganda in 1999, is already endemic in the area, making it possible to use Njoro as a testing ground for wheats from all over the world. More than 30,000 wheat lines are now being screened each year.
For more information on stem rust, see CIMMYT's Wheat Doctor: wheatdoctor.cimmyt.org/en/pests-a-diseases/list/122?task=....
For information on collection and inoculation techniques, see the CIMMYT publication "Rust diseases of wheat: Concepts and methods of disease management", available as a pdf at: libcatalog.cimmyt.org/download/cim/38487.pdf.
For more on CIMMYT's ongoing work on Ug99, see the following e-news stories:
2010, "Planting for the future: New rust resistant wheat seed on its way to farmers": www.cimmyt.org/newsletter/231-2010/716-planting-for-the-f....
October 2009, "From Cairo to Kabul: Rust resistant wheat seed just in time": www.cimmyt.org/newsletter/38-2009/460-from-cairo-to-kabul....
December 2008, "Report from the field: Wheat stem rust resistance screening at Njoro, Kenya": www.cimmyt.org/newsletter/37-2008/110-genetic-resources-p....
December 2006, "Threat level rising": www.cimmyt.org/newsletter/82-2006/263-threat-level-rising.
September 2005, "The World’s Wheat Crop is Under Threat from New Disease": www.cimmyt.org/newsletter/86-2005/331-the-worlds-wheat-cr....
Photo credit: Petr Kosina/CIMMYT.