ARS | Publication request: 2012 Mississippi Valley Uniform Regional Barley Nursery

Submitted to: Mississippi Valley Uniform Regional Barley Nursery Report
Publication Type: Other
Publication Acceptance Date: February 28, 2013
Publication Date: March 1, 2013
Citation: Edwards, M.C. 2013. 2012 Mississippi Valley Uniform Regional Barley Nursery. Mississippi Valley Uniform Regional Barley Nursery Report. 29pgs.

Interpretive Summary: The Mississippi Valley Uniform Regional Barley Nursery is a cooperative venture between ARS and various barley breeding programs in the U.S. and Canada. Each year, breeders grow a nursery comprised of advanced barley lines from each of their breeding programs at a variety of sites in several states and provinces. This allows direct comparisons of advanced lines with each other and also allows each breeder to see how well his own lines perform in a variety of different environments. This type of annual testing assists breeders in determining the best performing lines and subsequently assists them in determining which lines should be released as commercial cultivars. This report is a compilation of the data obtained from the 2012 nursery.

Technical Abstract: <p>It was a much better year for the barley nursery than last year when only four locations were able to contribute useable data for the report. Much drier weather prevailed during this growing season. The reader is referred to the "Nursery Conditions" section immediately following this summary for comments concerning specific locations. Average planting date was April 24th, 4 days earlier than the 30-year average, while average heading date was the same as the 30-year average (June 26th). Average planting date was 8 days earlier than last year, but heading date was only a few days earlier. Average yield (3929 kg/ha or 73 bu/a) was below both the 30-year average and last year’s average of 4555 kg/ha. Entries with the best yields were 2ND28131, 6B08-3210, 2ND28065, M154, and 6B09-4021. Average test weight was 62.4 kg/hl, slightly higher than the 30-year average of 61.3. Entries with the highest test weights were 2ND27440, 2ND28065, M145, M148, 2ND26333, 2ND27421. No test weights were reported last year. Lodging data were not reported. Average plant height was 80.2 cm – slightly under the 30-year average. Shortest entries were ND28993, 2ND26333, 2ND27421, 6B09-4235, and SR448. Disease data from the Cereal Research Centre in Winnipeg are posted in Table 18. The Brandon location also reported disease data that can be found in Tables 19 and 20. A summary of data from the nursery grown at Aberdeen is in Table 21. Finally, a list of entries and their parentage is in Table 22.