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United States Department of Agriculture

Agricultural Research Service

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Research Project: Characterization of Spot Form Net Blotch on Barley in Eastern Montana

Location: Cereal Crops Research

Project Number: 5442-22000-048-27
Project Type: Trust

Start Date: Jul 15, 2013
End Date: Jun 30, 2014

Objective:
The objectives of this proposal are to deliver 1) an understanding of how the pathogen is causing disease and why the local isolates are so much more virulent on locally planted barley cultivars including ‘Lacey’ and ‘Tradition’, 2) Potentially durable sources of resistance in barley, and 3) barley mapping populations that will be utilized to characterize the genetics of resistance for the eventual movement resistance into high yielding, high quality local barley varieties.

Approach:
We will use a multiple approaches to begin to characterize the spot form net blotch population in eastern Montana and western ND. These approaches include collecting and characterizing natural Pyrenophora teres f. maculata populations collected in the from eastern MT and western ND, using bi-parental P. teres f. maculata populations that segregate for virulence, screening the barley core collection (BCC) for lines harboring high levels of resistance to spot form net blotch, and beginning the development of populations from these BCC lines to characterize the genetics of the resistance. Using this multi-dimensional approach we will gain insight into how to best control this important disease that is new to this region.

Last Modified: 4/20/2014
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