Abstract only

The wheat rusts are important diseases in Azerbaijan, with stripe (yellow) rust the most prevalent. Understanding the pathogenic variability in rust pathogens is basic to breeding for rust resistance. Rust surveillance was conducted in major wheat growing areas in Azerbaijan during the 2009 and 2010 seasons following the Borlaug Global Rust Initiative (BGRI) rust surveillance protocols. Pathogenic variability was also investigated with Rust Trap Nurseries planted at the Shaki (rainfed area), Gobustan (semiarid), Jalilabad (arid), and Absheron (irrigated area) research stations. Farmers? crops were surveyed along standardized survey routes with inspections on average every 30 km. Geo-referenced data, disease incidence, and disease severity for all three rusts were recorded for each field. Seventeen and 62 fields were inspected in 2009 and 2010, respectively. In 2009, stripe rust was widely distributed and present at 13 (76%) sites; high disease severities (>40%) were recorded at four sites. Leaf rust was present at 4 sites (24%) in Central Azerbaijan, but only at low severities (<20%). Stem rust was not observed in 2009. In 2010 stripe rust was very widely distributed and present at 52 (84%) sites, with high severities (>40%) at 23 sites. Leaf rust was observed at 10 sites (16%) with low to moderate severities (<40%) in the south-east close to the Caspian Sea. Stem rust was recorded with low to moderate severities (<40%) at 2 sites close to the Caspian Sea.

Socioeconomics Program

Text in English

INT2550

CIMMYT Staff Publications Collection