| INTRODUCTION | |||||||||
| The 2007 Uniform Midseason Oat Performance Nursery was grown at 18 locations in 10 | |||||||||
| 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. Data from Urbana, Illinois | |||||||||
| are presented but not included in yield and yield parameter averages because of severe barley | |||||||||
| yellow dwarf virus effects. | |||||||||
| The 2007 nursery mean yield of 110.5 bu/A was lower than the 2006 mean yield of 116.6 bu/A. | |||||||||
| Fargo, ND was the highest yielding location in 2007 with a location mean of 159.2 bu/A. The | |||||||||
| lowest yielding location was Urbana, IL with a mean of 61.0 bu/A. | |||||||||
| The highest yielding entries were ND030365 and ND030349 with a mean yield of 125.4 and | |||||||||
| 123.1 bu/A, respectively. Both entries were near average in test weight and groat percent as | |||||||||
| determined in these tests. This was the first year these entries were tested in the UMOPN. | |||||||||
| The lowest yielding entries were the long-term checks, Gopher and Clintland 64, with mean | |||||||||
| yields of 85.0 and 91.7bu/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 | |||||||||
| 2007 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. | |||||||||
| In contrast to previous years, groat percentages were determined by hand dehulling a 2-gram sample. | |||||||||
| This was necessary because safety upgrades of our crop research processing facility limited access to | |||||||||
| the mechanical dehulling equipment. Because of the small sample sizes, protein values were | |||||||||
| determined by combustion in a nitrogen analyzer (Leco model 428). A nitrogen to protein conversion | |||||||||
| factor of 6.25 was used. Oil content was determined by weight of oven-dried 2x petroleum ether | |||||||||
| extracts. Beta-glucan was determined by using an adapted calcafluor fluorescent microplate | |||||||||
| assay instead of flow injection. A standard regression curve was generated with 10-100 mg/L | |||||||||
| of beta-glucan per well. Fluorescence was determined in a Molecular Devices SpectraMax Gemini | |||||||||
| monochromator microplate fluorometer. | |||||||||
| 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 on | |||||||||
| page 4. 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). | |||||||||
| This report and past years' reports are available at http://wheat.pw.usda.gov/GG2/Avena/UE-MOPN.html | |||||||||
| We wish to thank Laurie Herrin, USDA Cereal Crops Research Unit, Madison, WI, for analyses | |||||||||
| of groat protein, beta-glucan, and oil percentages. | |||||||||
| 1 | |||||||||