Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: Winter Wheat Nursery and Database for Stem Rust (UG99) Resistant Materials

Location: Forage Seed and Cereal Research

2012 Annual Report


1a.Objectives (from AD-416):
Support seed increase, distribution and database development for the stem rust-related winter wheat nursery in the Pacific Northwest.


1b.Approach (from AD-416):
The nursery currently operated by the cooperator has wheat lines that have been grown in the CIMMYT/ARS nursery in Ankara, Turkey, with quarantine and inspection handled through the Aberdeen ARS location. This nursery will be maintained, and expanded so that sufficient seed for distribution and short-term (several years) storage can be produced. The ARS Aberdeen location will be the site for seed archiving. Personnel funded under this SCA will collect limited agronomic trait data from the nursery, and will manage a database of trait information that is collected in this nursery and by other scientists who subsequently use the seed in their local field tests. The product of this effort will be a database for use by wheat breeders who wish to use lines from this nursery, including lines that have been tested in the CIMMYT nursery for resistance to Ug99, in their breeding programs.


3.Progress Report:

This project is one of three Specific Cooperative Agreements (SCAs) that support the in-house parent project's objective 1C: Identify germplasm and increase seed for wheat and barley lines with resistance to stem rust Ug99. In particular, this SCA conducts research supporting the national Ug99 wheat breeding effort by supplying seed and associated data to cooperating wheat programs throughout the U.S. Three international nurseries of wheat lines (WWSRRN, FAWWON-irrigated and FAWWON non-irrigated) totaling 438 lines were planted in Corvallis in January, 2012 to supply wheat researchers with germplasm that may have resistance to UG99 stem rust. Due to changes in quarantine requirements from APHIS, the lines had to be planted in the greenhouse for initial increase. The lines are currently being harvested and the quantity and quality of seed production in the greenhouse will be evaluated prior to seed distribution in the fall. Quantity of seed produced will be much lower than previous years due to the greenhouse production requirement. The 2011 WWSRRN and FAWWON nurseries were harvested from the field in fall, 2011. Data from the 2011 nurseries was distributed to cooperators by web and by email. Seed from the 2011 nurseries was distributed in the fall and spring depending on the hemisphere (north or south) of the cooperator. Seed for the 2013 WWSRRN and FAWWON is currently being shipped to Oregon State University.


Last Modified: 7/25/2014
Footer Content Back to Top of Page