1. Dep. of Plant Breeding; Swedish Univ. of Agricultural Sciences; PO Box 101, SE-23053 Alnarp
2. Tajik Agrarian Univ.; 146, Rudaki Ave. Dushanbe 734017
3. Dep. of Agroecology; Aarhus Univ.; Flakkebjerg, DK-4200 Slagelse
4. Regional Cereal Rust Research Center; Aegean Agricultural Research Institute; P.K. 9 35660 Menemen Izmir Turkey
5. Dep. of Plant Pathology; Univ. of Minnesota; St. Paul MN 55108