Report of the 2008 Uniform Regional Scab Nursery for Spring Wheat Parents

Coordinator:  David F. Garvin

USDA-ARS, Plant Science Research Unit

411 Borlaug Hall, University of Minnesota

1991 Upper Buford Circle, St. Paul, MN 55108

Report prepared by: David F. Garvin and Zachary Blankenheim

The Uniform Regional Scab Nursery for Spring Wheat Parents (URSN) was grown for the 14th year in 2008.  Five mist-irrigated locations at Brookings, SD, St. Paul and Crookston, MN, Langdon, ND, and Glenlea, Manitoba, Canada were planted.

A total of 36 entries were included in the 2008 URSN, including the resistant checks 2375, BacUp, and ND2710, and the susceptible checks Wheaton and Oslo.  Rugby was included as a durum check.  The other entries were contributed by 8 university, and industry breeding programs.  Three of these entries were durum wheat, and the rest were hard red spring wheat.

A core set of traits evaluated provided from most locations included scab incidence, scab severity, disease index (incidence x severity), and visual scabby kernel ratings (VSK, tombstone, @ FDK).  Additional recorded trait data such as grain deoxynivalenol content, plot yield, and heading date, are presented in individual location summary tables.  Overall means for traits across locations are presented, as are relative rankings for scab incidence, severity, disease index, and VSK.  Correlation coefficients are provided between scab incidence and severity, disease index, and VSK.

This material is based upon work supported by the U.S. Department of Agriculture, in cooperation with the U.S. Wheat & Barley Scab Initiative.  Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the U.S. Department of Agriculture.

St. Paul, MN

February, 2009

CONTENTS                                                                                                                           PAGE

Cooperating Agencies, Stations and Personnel                                                                              1

Table 1.  List of Entries in the 2008 URSN                                                                                   2

Tables 2-6.  Nursery Data by Individual Location                                                                      3-7

Table 7.  Trait Means Across Locations, with Rankings                                                                 8

Table 8.  Correlations Between Traits, by Location                                                                       9

Table 9.  Correlations Between Traits Across Locations                                                              10

Cooperators for the 2008 Uniform Regional Scab Nursery for Spring Wheat Parents

North Dakota State University (Langdon):

Scott Halley

South Dakota State University (Brookings):

Karl Glover

University of Minnesota (St. Paul, Crookston):

Jim Anderson, Ruth Dill-Macky, and John Wiersma

Agri-Food Canada, Glenlea, Manitoba:

Jeannie Gilbert and Gavin Humphreys