INTRODUCTION

The 2009 Uniform Midseason Oat Performance Nursery was grown at 16 locations in 9

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 out of the range of adaptation of oat entries in this nursery.  The yield data from East Lansing

also are omitted from the 2009 nursery average because of a high C.V.

The 2009 nursery mean yield of 129.7 bu/A was markedly higher than the nursery mean yields of

117.0 bu/A in 2008 and 110.5 bu/A in 2007.  Fargo, ND was the highest yielding location in 2009

with an impressive location mean of 196.8  bu/A.  The lowest yielding location was East Lansing,

Michigan, with a mean of 62.5 bu/A.

The highest yielding entry was ND030365 with a mean yield of 144.5 bu/A.  This entry has topped

the nursery in yield each of the past three years.  A first-year entry MN07210 was second high in

yield at 144.1 bu/A.   The lowest yielding entries were the long-term checks, Gopher and

Clintland 64, with mean yields of 94.5 and 104.9 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

2009 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.

This report and past years' reports are available at:

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