2007 Annual Report 1a.Objectives (from AD-416) The objective of the cooperative research between Louisana State University and the USDA Agricultural Research Service is to evaluate and identify sources of resistance to wheat stripe rust and incorporte and identify souces of resistance to wheat stem rust. 1b.Approach (from AD-416) Louisana State University will obtain, plant, manage, evaluate, and harvest (if needed) uniform nurseries and other germplasm sources of wheat for evaluation to the wheat stripe rust pathogen, Puccinia striiformis. The wheat germplasm will be evaluated for resistance by University personnel using standard evaluation rating scales at one or more locations in the State of Louisana, where stripe rust is know to occur. Data will be put into a standard electronic format and given to the ARS project coordinator. 3.Progress Report This report serves to document research conducted under a specific cooperative agreement between ARS and the Louisiana State University. Additional details of research may be found in the report for the parent CRIS 6645-22000-015-00D. Stripe rust nurseries were evaluated at the LSU Agricultural Center (LSUAC) Central Stations Ben Hur Research Farm in Baton Rouge, LA and at the Macon Ridge Research Station in Winnsboro, LA. The 2006-07 Eastern Soft Wheat Stripe Rust Nursery was planted in November of 2006 and rated in April 2007. This nursery was grown in 4’ long headrows. Infection Type and Severity was recorded for leaf rust and stripe rust. This nursery contained 400 soft wheat entries including 32 from the LSUAC breeding program. USDA-ARS cooperators David Marshall and Xianming Chen also visited the sites and collected additional data. Stripe rust was moderate at Winnsboro. There were 950 headrows planted at Baton Rouge and at Winnsboro as part of the Cooperative Research Agreement. ADODR (D. Marshall) confers with the cooperator by phone after planting to assess progress, in late winter to assess nursery inoculation, and in spring to assess disease progress. Dr. Marshall visits both nursery locations in the spring to assist in disease severity assessments.