1.Impacts of Wheat Stripe Rust in Uzbekistan: Breeding and Control StrategiesZ. F. Ziyadullaev, R.C. Sharma, A.A. Amanov,Z. M. Ziyaev, Z.I. Khalikulov, S.M. Alikulov International Wheat Stripe Rust Symposium ICARDA, Aleppo, Syria18-20 March

2. Kashkadarya Grain Breeding and Seed production Research Institute 3. Map of Uzbekistan

Population: 28 mln

4. Wheat production statistics in Uzbekistan 5. Wheat Improvement Priorities in Uzbekistan

Yield potential

Quality

Disease resistance

• Stripe rust

• Leaf rust

Insect pest resistance

Drought and heat tolerance

Salinity tolerance

Cold / frost tolerance

6. Wheat Rust Problem inUzbekistan Occurrence Cropstage Damage without spray Yellow rust Every year Early Up to 70% yield loss Leaf rust Once in 5 years Flowering Up to 20% yield loss Stem rust Seldom Milking Rare 7. Wheat Stripe Rust Epidemics in Uzbekistan:

Five stripe rust epidemics since1999 (1999, 2003, 2005, 2009, 2010 ).

Chillaki Polovchanka 8. Stripe Rust Research Activities in Uzbekistan

Identification of resistant varieties

Capacity building

Monitoring and surveillance

9. Identification of Stripe Rust Resistant Varieties

Hybridization and selection

International nurseries

Regional collaboration

10. National Wheat Varietal Improvement

Germplasm screening and evaluation

• Field screening for stripe rust resistance

• • Artificial inoculation in the field

• • Natural disease epiphytotics

• Observation nurseries

• Multi-location yield trials

11. International Nurseries

International Winter Wheat Program

ICARDA

CIMMYT

12. Stripe rust resistance 2010 Hazrati Bashir = Agri/Nac//Mlt/5/Gov/Az//Mus/3/Dodo/4/Bow/6/Vorona/TR810200 Elomon = KVZ/T171/3/ MAYA//BB/INIA/4/KARDJ2/5/ANZA/6/ORE F1.158/FDL/BLO/3/SHI4414/CROW Gozgon = AGRI/BJY//VEE/3/AKULA/4/F10S-1 Nursery No. of resistant lines advanced to 2011 Resistant Varieties submittedYield Trial (Selections from 2008, 2009, 2010) Uzbekistan 33 IWWIP Yield Trials- 2010 23 1 stWWSRRN 14 13. Status of Varietal ResistanceName of variety Year of release Level of yellow rust severity when released Year when became susceptible to yellow rust Level of yellow rust severity at present Kroshka 2000 10-15MR 2009 100S Polovchanka 1999 10MR 2009 100S Pamyat 2006 R 2010 100S Moskvich 2007 R 2009 100S Krasnodar99 2006 R 2009 60S Kuma 2006 10MR 2009 40MR Kupava 1999 10MR 2009 80S Tanya 2006 R 2009 60S Chillaki 2002 15-20MR 2009 100S Bobur 2006 20MR 2009 80S Andijon4 2004 10MR 2009 100S Andijon2 2003 20MR 2009 100S Dustlik 2005 10MR 2010 30S Esaul 2008 5MR 10MR Nota 2007 20MR 2010 40MS Starshina 2004 10MR 2009 40MS-S Jayhun 2004 20MR 2009 10MS 14. Capacity Building

Training of young researchers

15. National Institutions

Uzbek Scientific Production Center

• Kashkadarya Grain Breeding and Seed Production Research Institute

• Andijan Research Institute

• Gallarol Research Institute

• Uzbek Research Institute of Plant Industry

Institute of Genetics and Experimental biology

Tashkent Agrarian University

Samarkand Agricultural Institute

16. Monitoring and Surveillance of Wheat Rusts

Monitoring of rust pathogens by Plant Protection Center through out crop cycle

Annual surveillance of rust pathogens in collaboration with ICARDA and FAO

Rust Trap Nurseries evaluated in different sites

Collaboration with Aarhus University, Denmark and Washington State University, USA for race analysis

17. Rust Surveillance 18. Wheat Stripe Rust Control Strategies

A combination of available resistant varieties and fungicide spray is used to minimize losses due to stripe rust.

19. Additional Efforts

Incorporate characterized stripe rust resistance genes into commercial cultivars

Using of marker-assisted selection

Characterization pathogen populations

20. Collaboration

ICARDA

CIMMYT

BGRI

FAO

Advance Labs in Australia, Denmark and the USA

21. Acknowledgement

ICARDA

CIMMYT

FAO

BGRI

Advance Labs in Australia, Denmark and the USA

22. Thank you for attention