Global initiatives for management of UG99 stem rust race and reactions of some winter wheat genotypes to UG99 in 2008 year
Mert, Z.
Global initiatives for management of UG99 stem rust race and reactions of some winter wheat genotypes to UG99 in 2008 year - Antalya (Turkey) : METU, 2009. - 1 page
Abstract only
Wheat (Triticum spp.) is among the most strategic products of Turkey and interest large number of producers in the country. The rust diseases are very important as they are among the most significant biotic factors affecting wheat yield and quality. Stem rust (Puccinia graminis f.sp. tritici) is very important, which is one of the most significant biotic factors affecting wheat yield and quality and might cause yield production decrease by 70% in Turkey. Through sexual production and mutation, stem rust can produce often more virulent pathotypes that can infect different wheat genotypes which may be resistant previously, resulting in new epidemics. For example, new yellow rust race which originated in Kenya in 1986 caused 0,5 million tones of yield losses in Cukurova region in 1995. Race/patotype Ug99, first identified in Uganda during 1999 (therefore called Ug99), is known race of stem rust that has virulence for gene Sr31. Later this race was designated as TTKS using the North American nomenclature system. The fact that 90% of international wheat germplasm has been found susceptible to this race has forced many important wheat producing countries to search for solutions. A global initiative (BGRI Borlaug Global Rust Initiative) has been established to set global management strategies by under the new race threat countries and international organization. Turkey is one of the active member countries of this BGRI and carries out following activities.|In this study, we focused on 1) Monitoring the spread of race Ug99 with the collaboration of international institutes. 2) Determination of resistant germplasm against this race. A total of 169 winter wheat genotypes was sent to Kenya in which UG 99 is very effective for screening to UG99 in 2008. In these genotypes, 20 genotypes were determined as a resistant to Ug 99.|According to this result, we can use these genotypes as resistant germplasm for released or crossing rogramme. On the whole, the study has a great value in view of producing the necessary information facilitating the control of stem rust through utilization of genetic resistance which is the most environmentally friendly method. Finally, its contribution to establishing the research capacity which the country needs in this field has been realized.
Text in English
Genetic resistance
Stem rust
Wheat
Global initiatives for management of UG99 stem rust race and reactions of some winter wheat genotypes to UG99 in 2008 year - Antalya (Turkey) : METU, 2009. - 1 page
Abstract only
Wheat (Triticum spp.) is among the most strategic products of Turkey and interest large number of producers in the country. The rust diseases are very important as they are among the most significant biotic factors affecting wheat yield and quality. Stem rust (Puccinia graminis f.sp. tritici) is very important, which is one of the most significant biotic factors affecting wheat yield and quality and might cause yield production decrease by 70% in Turkey. Through sexual production and mutation, stem rust can produce often more virulent pathotypes that can infect different wheat genotypes which may be resistant previously, resulting in new epidemics. For example, new yellow rust race which originated in Kenya in 1986 caused 0,5 million tones of yield losses in Cukurova region in 1995. Race/patotype Ug99, first identified in Uganda during 1999 (therefore called Ug99), is known race of stem rust that has virulence for gene Sr31. Later this race was designated as TTKS using the North American nomenclature system. The fact that 90% of international wheat germplasm has been found susceptible to this race has forced many important wheat producing countries to search for solutions. A global initiative (BGRI Borlaug Global Rust Initiative) has been established to set global management strategies by under the new race threat countries and international organization. Turkey is one of the active member countries of this BGRI and carries out following activities.|In this study, we focused on 1) Monitoring the spread of race Ug99 with the collaboration of international institutes. 2) Determination of resistant germplasm against this race. A total of 169 winter wheat genotypes was sent to Kenya in which UG 99 is very effective for screening to UG99 in 2008. In these genotypes, 20 genotypes were determined as a resistant to Ug 99.|According to this result, we can use these genotypes as resistant germplasm for released or crossing rogramme. On the whole, the study has a great value in view of producing the necessary information facilitating the control of stem rust through utilization of genetic resistance which is the most environmentally friendly method. Finally, its contribution to establishing the research capacity which the country needs in this field has been realized.
Text in English
Genetic resistance
Stem rust
Wheat