Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/30/2005
Publication Date: 2/24/2006
Citation: Obert, D.E., Wesenberg, D.M., Burrup, D.E., Erickson, C.A., Whitmore, J.C., Jones, B.E. 2006. Registration of ‘sublette’ spring malting barley. Crop Sci 46:989-991
Interpretive Summary: Malting barley is an important crop to producers in the Intermountain west area of the US, and specifically Idaho. The acreage devoted to malting barley continues to increase in both Idaho and Montana. In addition, the malting industry has continued to expand their operations in Idaho and Montana with the construction of new malting plants which has increased the demand for malting barley in the region. The release of Sublette will provide producers with a variety with improved yield potential and resistance to lodging. Additionally, this variety represents a potential product for the malting and brewing industry. Sublette was evaluated in replicated yield trials for agronomics and malt quality across multiple environments and years in Idaho, Montana, Washington, and North Dakota. The data shows that it has superior yield potential compared to the current industry standard. Sublette is expected to be adapted to both irrigated and dry land regions of Idaho and Montana. DE Obert, DM Wesenberg (retired), DE Burrup, and CA Erickson, USDA-ARS Small Grains and Potato Research Facility, 1691 South 2700 West, Aberdeen, ID 83210; BL Jones (retired), USDA-ARS Cereal Crops Research Unit, 501 N. Walnut St., Madison, WI. J.C. Whitmore, Univ. of Idaho Tetonia Res. & Ext. Ctr., 888 West Hwy. 33, Newdale, ID 83436.
Technical Abstract: ‘Sublette’, a 2-row spring barley (Hordeum vulgare L.), was developed by the Agricultural Research Service-USDA, Aberdeen, ID in cooperation with the University of Idaho Agriculture Experiment Station. Sublette was named after William L. ‘Bill’ Sublette, an early explorer of the Western United States. Sublette was tested in various trials throughout Idaho from 1994-2002, and 2004. It was tested in both the Western Regional Spring Barley Nursery and the Western Regional Dry land Spring Barley Nursery from 1996-98. It was evaluated in American Malting Barley Association pilot scale malt tests from 1999-2001 and received favorable ratings in 1999 and 2001. In over 40 irrigated trials across Idaho from 1994-2002, Sublette headed 1d earlier and was 3 cm shorter than Harrington. Sublette was superior to Harrington for yield, test weight, and kernel plumpness. Sublette is also superior to Harrington for resistance to lodging. Across 33 Idaho dry land trials from 1995-2003 Sublette was superior to Harrington for yield, test weight, and percentage plump kernels. In 26 trials from 1996-97 in the Western Regional Spring Barley Nursery, Sublette had greater yield, was on average 2cm shorter, and had a higher percentage plump kernels than Harrington. In regional trials under natural infection of Puccinia striiformis f.sp.hordei at Tammany, ID and Fairfield, MT, Sublette showed fewer symptoms of stripe rust than Harrington. Because little data is available, it is uncertain if Sublette is more resistant to stripe rust than Harrington and Sublette is not considered to be highly resistant. Malting quality was assessed under irrigated conditions at Aberdeen and Tetonia, ID from 1996-2001. Sublette was superior to Harrington for percentage malt extract, diastatic power, alpha amylase activity, and beta-glucan. Sublette was similar to Harrington for percentage wort protein. In regional trials across 11 location years from 1996-1998, Sublette was superior to Harrington for percentage plump kernels, malt extract, diastatic power, alpha amylase, and beta-glucan. Grain protein values were similar for Sublette and Harrington. Sublette is expected to perform well under both irrigated and rain-fed growing areas of the Intermountain west. Sublette is not known to have superior resistance to foliar diseases compared to Harrington. DE Obert, DM Wesenberg (retired), DE Burrup, and CA Erickson, USDA-ARS Small Grains and Potato Research Facility, 1691 South 2700 West, Aberdeen, ID 83210; BL Jones (retired), USDA-ARS Cereal Crops Research Unit, 501 N. Walnut St., Madison, WI. J.C. Whitmore, Univ. of Idaho Tetonia Res. & Ext. Ctr., 888 West Hwy. 33, Newdale, ID 83436.