Winter Wheat Nursery and Database for Stem Rust (UG99) Resistant Materials
2011 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. This SCA supports research conducted under National Program (NP) Number303, Plant Diseases. The research is conducted as part of ARS research project 5358-22000-035-00D, augmented by the FY2010 Program Increase for Research to Strengthen Grain Disease Research to Reduce World Hunger.
Two international nurseries (WWSRRN and FAWWON) were planted in Corvallis last fall to supply wheat researchers with germplasm that may have resistance to UG99 stem rust. The first nursery was the WWSRRN nursery which increased in size from 69 entries to 85 entries this year. Agronomic data collected on these lines, and UG99 resistance data from the Kenya nursery, is distributed with the seed. The data is also summarized across cooperators and distributed by web and by email. The second nursery is the FAWWON nursery, which has been screened for stem rust but is not specifically designed for distribution of UG99 resistant lines. This nursery also was planted last fall for seed distribution this fall. The FAWWON is larger this year (438 lines) compared to the previous year (255 lines). Agronomic data is collected on the FAWWON and is made available online and distributed by email.
The project was monitored through site visits, meetings, email correspondence and review.