The 2011 Uniform Midseason Oat Performance Nursery was grown at 15 locations in 8 
states and 3 Canadian provinces.  The ‘Comments on Growing Conditions’ provide some 
insight on the growing conditions of the reporting locations.  Data from Aberdeen, Idaho, and 
Lacombe, Alberta, are presented but not included in nursery means because their locations
are generally out of the range of adaptation of oat entries in this nursery.  Nurseries were lost at  
Carrington, North Dakota, and Watertown, South Dakota, due to hail and at Fargo, North Dakota, 
due to excess water.  The yield data from Ithaca, New York, are presented but are omitted from  
the 2011 nursery yield averages because of a high C.V. due to poor growing conditions.
The 2011 nursery average yield of 90.0 bu/A was well below the 2010 average yield of 117.7 bu/A.
The highest yielding location in 2011 was Madison, Wisconsin, with an average yield of 111.5 bu/A.
The lowest yielding location was Ottawa, Ontario, with an average of 66.4 bu/A due to poor soil
preparation following prolonged early rains.    
The highest yielding entry was SD090552 with an average yield of 106.9 bu/A followed  
closely by MN09255 at 106.4 bu/A and ND070182 at 105.7 bu/A.  Entry SD090552 was also
highest in test weight among nursery entries and third highest in groat percent.  The lowest  
yielding entries were the long-term checks, Gopher and Clintland 64, with mean yields of  
50.5 and 63.8 bu/A, respectively.
Coefficient of Variation (CV) and Least Significant Difference (LSD) values for yield are provided
for each location in Table 5 ‘Average yield (bu/A), yield, and rank at stations reporting the
2011 UMOPN’.  These values were either supplied by the cooperator or calculated using the
individual plot data submitted by the cooperator.  This information plus the listing of ‘Plot Data’
and ‘Comments on Growing Conditions’ at individual locations should help in interpreting the results.
The groat percentages were determined by dehulling a 50-gram sample with a Codema oat dehuller.  
The protein and oil samples were run on the Infratec 1255 Food and Feed Analyzer (whole seeds 
using near-infrared transmittance).  A standard regression for protein was made using a sub-set of 
samples, which was run on the Leco FP-428 nitrogen combustion apparatus.  The oil regression
was based on NMR analyses.  Beta-glucan values were determined by chemical analysis using 
the calcofluor fluorescence method. 
A list of recently released cultivars including state or program of origin, assigned name,
experimental line number in testing, nurseries tested in, and pedigree can be found in
Appendix C.  This list, in addition to being included in the annual nursery reports, is to be
maintained in an updated fashion on a GrainGenes website:
(link at
We wish to thank Mitchell Wise and Laurie Herrin, USDA Cereal Crops Research Unit, Madison, 
WI, for analyses of groat protein, beta-glucan, and oil percentages, and Roger Caspers, University 
of Minnesota, for groat percent determinations.
This report and past years' reports are available at: