Report of the 2019 Uniform Regional Scab Nursery for Spring Wheat Parents

Authors: Garvin, David; Blecha, Sarah

Submitted to: Uniform Regional Scab Nursery for Spring Wheat Parents
Publication Type: Other
Publication Acceptance Date: 4/3/2020
Publication Date: 4/3/2020
Citation: Garvin, D.F., Blecha, S.M. 2020. Report of the 2019 Uniform Regional Scab Nursery for Spring Wheat Parents. Uniform Regional Scab Nursery for Spring Wheat Parents. p. 1-16.

Interpretive Summary:

Technical Abstract: The Uniform Regional Scab Nursery for Spring Wheat Parents (URSN) was grown for the 24th year in 2019. Six locations (Brookings, SD, St. Paul, MN, Crookston, MN, Prosper, ND, Langdon, ND, and Morden, Canada) reported results. A total of 20 entries was included in the 2019 URSN, in addition to the resistant checks 2710, BacUp, and Rollag, the susceptible checks Wheaton, Oslo, and Norm, and N10, a Norm near-isoline containing Fhb1. The entries were contributed by four university wheat breeding programs. The core set of traits evaluated at the nursery locations varied, but included Fusarium head blight (FHB) incidence, FHB severity, and disease index. In addition, visual scabby kernel ratings (VSK/tombstone/FDK) were provided for most locations. Additional agronomic trait data are presented in individual location summary tables for locations where they were measured. Molecular marker genotypes for a set of FHB resistance QTLs and other traits are provided for entries. Adult plant leaf and stem rust reactions, as well as seedling stem rust reactions, are also presented. Due to the impact of COVID-19 on university analytical laboratory operations, grain DON accumulation data is available for just one location. When additional DON data are obtained in the future for other locations, an addendum will be released.