INTRODUCTION

The 2010 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.  No data were reported

from Morris, Minnesota, due to major planting errors, nor from Beresford, South Dakota, due to

excessive rain.  The yield data from Madison, Wisconsin, also are omitted from the 2010 nursery

yield averages because of a high C.V.

The 2010 nursery average yield of 117.7 bu/A was about 12 bu/A lower than that in 2009 of

129.7 bu/A but similar to the average of 117.0 bu/A in 2008.  Fargo, ND was the highest yielding

location in 2010 as it was in 2009 with with an impressive location average of 194.5 bu/A.  The

lowest yielding location was Ottawa, Ontario, with an average of only 47.5 bu/A due to late planting

and early drought.

The highest yielding entry was the new check line ND030365 with a average yield of 131.6 bu/A.

This line present in the nursery as an experimental line the past 3 years also topped the nursery

in yield in each of those years.   Three South Dakota sister lines, SD081936, SD081577, and

SD081949, followed closely behind ranking 2, 3, and 4, respectively, in yield.  The lowest yielding

entries were the long-term checks, Gopher and Clintland 64, with mean yields of 86.3 and

95.5 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

2010 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

fluorescence spectrometry.

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 http://wheat.pw.usda.gov/GG2/oat.shtml).

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:

http://wheat.pw.usda.gov/GG2/Avena/UE-MOPN.html