Annual Progress Report on Malting Barley Research March, 2007

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Rongshuang Lin, Ph.D. Candidate Fabio Pedraza, Ph.D. Candidate Adisu Negeri, Ph.D. Candidate Recent Publications Peer-reviewed Horsley, R.D., J.D. Franckowiak, P.B. Schwarz, and S.M. Neate. 2006. Registration of Stellar-ND barley. Crop Sci. 46:980. Horsley, R.D., J.D. Pederson, P.B. Schwarz, K. McKay, M.R. Hochhalter, and M.P. McMullen. 2006. Integrated use of tebuconazole and Fusarium head blight resistant genotypes in controlling Fusarium head blight and deoxynivalenol accumulation. Agron. J. 98:194-197. Horsley, R.D., D. Schmierer, C. Maier, D. Kudrna, C.A. Urrea, B.J. Steffenson, P.B. Schwarz, J.D. Franckowiak, M.J. Green, B. Zhang, and A. Kleinhofs. 2006. Identification of QTL associated with Fusarium head blight resistance in barley accession CIho 4196. Crop Sci. 46:145-156. Schwarz, P.B., R.D. Horsley, B.J. Steffenson, B. Salas, and J.M. Barr. 2006. Quality risks associated with the utilization of Fusarium Head Blight infected malting barley. Accepted: J. Am. Soc. Brew. Chem. 64:1-7. Abstracts C. Boyd, C. Maier, S. Sushailo, R. Horsley, and A. Kleinhofs. 2006. Genetic and physical mapping of the balrey chromosome 2 (2H) Vrs1 region Fusarium head blight resistance QTLs. P. 87-90. In S.M. Canty, A. Clark, and D. Van Sanford (eds.) Proc of the 2006 National Fusarium Head Blight Forum, Research Triangle Park, NC, 10-12 Dec 2006. Michigan State University, East Lansing, MI. 60
STUDIES ON BARLEY DISEASES AND THEIR CONTROL Stephen Neate Department of Plant Pathology North Dakota State University Fargo, ND 58105 ANNUAL PROGRESS REPORT Fiscal year 2006/2007 EXECUTIVE SUMMARY Diseases are the most important factor in limiting the yield and quality of malting barley production in the upper mid-west of the US. The objectives of the Barley Pathology Project at North Dakota State University are to maintain and enhance resistance to barley diseases and develop timely, practical methods for disease control to ensure that the quantity and quality of malting barley in the upper Midwest are not limited by disease. We will achieve this goal through the support of the development of cultivars with genetic resistance to current and emerging diseases, as well as through the development of cultural and chemical management strategies. To accomplish this goal we have an ongoing program of surveying and research as well as working closely with state and industry breeders throughout the region. In 2006/07 we, • Conducted field trials and or screened in China or several locations in North Dakota breeding material and elite selections for breeders and geneticists at NDSU, USDA and several mid-west breeding programs. • Screened 872 lines in two separate tests in the greenhouse or in the field for resistance to spot blotch. Of the two-rowed lines tested in the winter of 2006/07, 31 % were resistant and of the six-rowed lines 49% were resistant. • Screened 494 lines in the greenhouse for resistance to net blotch, but due to low disease development we are currently repeating those tests. • Surveyed 108 fields for 12 barley diseases and posted weekly graphics summarizing the disease progress with accompanying interpretation on the NDSU web site, which allowed farmers and industry to make more informed disease control decisions. Diseases were lower in 2006 than for the last 5 years, both for FHB, leaf spots and rust. Insect levels were moderate especially later in the season. • Identified the chromosomal location of the leaf rust resistance gene Rph13 and identified a new leaf rust resistance gene. Leaf rust is a common late season disease of barley in the upper mid-west. The new gene is particularly interesting as it has a slow-rusting phenotype which is highly desirable. We have identified one microsatellite (SSR) marker closely linked to Rph13 which if combined with other markers may be useful for marker assisted selection. • Identified that the septoria speckled leaf blotch pathogen is genetically diverse throughout ND and western MN and that although a sexual stage has not been identified it is likely to exist. This information is critical for making decisions about how to deploy resistance genes for this important disease. 61
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Annual Pro
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-i- INTRODUCTION The March 2007 <st
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USDA-ARS NORTHERN CROP SCIENCE LABO
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Spring Regional over two years at D
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MALTING QUALITY ANALYSIS OF NEW BAR
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We recently secured an industrial c
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2006-2007 Progress
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enzyme it encodes. We found that se
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horseradish peroxidase-conjugated g
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found in plant cell walls. The degr
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Establishing that sequence variatio
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Charles Karpelenia, technician Joe
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Annual Progress Report on Malting Barley Research March, 2007

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