| INTRODUCTION | ||||||||
| The 2005 Uniform Midseason Oat Performance Nursery was grown at 17 locations in 10 | ||||||||
| states and 3 Canadian provinces. The ‘Comments on Growing Conditions’ provide some | ||||||||
| insight on the growing conditions of the reporting locations. Winnipeg, Manitoba, and | ||||||||
| Carrington, North Dakota were unable to supply data. 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. | ||||||||
| The 2005 nursery mean yield of 119.9 bu/A was lower than the 2004 mean yield of 133.6 | ||||||||
| bu/A, yet similar to the 2003 mean yield of 118.7 bu/A. Ames, Iowa (168.0 bu/A) and West | ||||||||
| Lafayette, Indiana (164.2 bu/A) recorded the highest overall average yield with Fargo, North | ||||||||
| Dakota coming in third at 155.5 bu/A. The lowest average nursery yield was from | ||||||||
| Rosemount, Minnesota, averaging 56.5 bu/A. Rosemount experienced heavy crown rust | ||||||||
| infection, which dramatically reduced grain yield. Data from Rosemount was included in the | ||||||||
| tables but excluded from the nursery average for yield, test weight, and groat percent based | ||||||||
| traits. | ||||||||
| For the second year in a row, the highest yielding entry was P9741A41-4-6-7 with a mean | ||||||||
| yield of 132.7 bu/A. Following close behind were entries IL 99-1338 (131.2 bu/A), IA00010-6- | ||||||||
| 1 (130.7 bu/A), IL00-7267 (130.5 bu/A), and SD020701 (129.9 bu/A). The lowest yielding | ||||||||
| entries were the long-term checks, Gopher and Clintland 64, with mean yields of 95.4 and | ||||||||
| 94.2 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 2005 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 reported in Table 11 were determined by dehulling a 50-gram sample | ||||||||
| with a Codema oat dehuller. The groat protein percent values in Table 12 and groat oil | ||||||||
| percent values in Table 15 were run on the Infratec 1255 Food and Feed Analyzer (whole | ||||||||
| seeds using near-infrared transmittance). A standard regression for protein was calculated | ||||||||
| using a sub-set of samples run on the Leco FP-428 nitrogen combustion apparatus. The oil | ||||||||
| regression was based on NMR analyses. Beta-glucan values reported in Table 17 were | ||||||||
| determined by chemical analysis using fluorescence spectrometry. | ||||||||
| A new feature added to the report this year is a list of recently released cultivars (Appendix | ||||||||
| D) including state or program of origin, assigned name, experimental line number in testing, | ||||||||
| nurseries tested in, and pedigree. 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 | ||||||||